Catalyst 5000 Advice?
Since ATM Lane is off the exam, what is the reasoning for having the Catalyst 5000 other than 802.1q and ISL Vlans? Not to sound skimpy, but the Cisco Interactive Mentor "LAN Switching" simulates the Catalyst 5000 series and part of the objective is to configure ISL and 802.1q, among many other things. I know it sounds cheezy, but maybe now that ATM Lane is gone we don't need to actually buy a Catalyst 5000 anymore? The C.I.M. indicates that it is preperation for CCIE Candidates. Assuming the worst, and I need a Catalyst 5000 series switch, would a Catalyst 2926 be a waste (not the 2926XL)? I don't know if it allows the configuration of ISL and 802.1q .. plus is there any way to test it? On the Catalyst 6500 with a Layer 3 blade you can route, but with a Layer 2 blade you can only perform Layer 2 switching. You can assign different ports to different VLANs, but something else must still perform the routing, such as a 7200 with multiple ethernet interfaces. Regards, Mark _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CID beta
Well, the Foundation 2 beta exam took 13 weeks to appear on galton and
it took at least another 3 weeks to get my score report from Sylvan,
which they mailed to my office address instead of my home address...
I have never experienced a longer wait, and I've done CompTIA (8
weeks), Novell (one time 2 weeks, but usually 4-6) , & Microsoft betas
(6-8 weeks) ...
On 3 Mar 2001 11:05:01 -0500, [EMAIL PROTECTED] ("GNOME") wrote:
>I think have to wait till 15 Mar..exactly 12 weeks!!!
>
>does anyone passed on past experience how long will a beta exam result be
>out?
>
>
>Fomes Iain <[EMAIL PROTECTED]> wrote in message
>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>> Anyone got their results yet?
>> *
>> DISCLAIMER: The information contained in this e-mail may be confidential
>> and is intended solely for the use of the named addressee. Access,
>copying
>> or re-use of the e-mail or any information contained therein by any other
>> person is not authorized. If you are not the intended recipient please
>> notify us immediately by returning the e-mail to the originator.
>>
>> _
>> FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>>
>
>
>_
>FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Did I luck out or what!
I'm in the beginning stages of throwing together a home lab (otherwise known as electric heating.) All I had to mess around with before was a 2501 with one broken serial port. Today an acquaintance gave me--for free--two Cisco 4000 routers (one with a 2-port serial module, the other is empty and running 9.1!!), a 3COM Netbuilder router, and a AT&T 16-port hub. Heck of a deal, huh? Well, the Cisco stuff is a good deal. Hubs are cheaper than dirt nowadays, and the 3com POS is annoying. To say that its user interface was not intuitive would be kind. It appears that it can do a lot, I just don't know if I have the patience to decipher the CLI! Anyway, I now need to find a couple more cables and some network modules for the 4000's. Do any of you know where I can get these *really* cheap? Yes, I'm becoming a tightwad, but only because I married one. I need another 2-port serial module, at least one ethernet module, and perhaps even a fast ethernet module. Any thoughts on who to call? Thanks, John ___ Send a cool gift with your E-Card http://www.bluemountain.com/giftcenter/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Skip the HEXquestions--BCMSN?
BCMSN gives you an exhibit with all the base-10 to base-16 conversions. So it's pretty simple to make the IP into a multicast MAC. "rtc" wrote in message ... should I even bother doing the hex questions on BCMSN? I know and understand binary, hex, multicast MAC address (00-00-05e +13 lsbs) very well,hex conversions but why waste the time on the test doing all the messy hEx for 5 minutes? I'm guessing only 1 hex question--wouldnt it be better to spend this time/effort elsewhres? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Skip the HEXquestions--BCMSN?
If you take 5 mins, you don't really understand binary, hex . The Q shouldn't take more than 3 mins AT MOST.. ""rtc"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > should I even bother doing the hex questions > on BCMSN? > I know and understand binary, hex, > multicast MAC address (00-00-05e +13 lsbs) very well,hex conversions > but why waste the time on the test doing > all the messy hEx for 5 minutes? > I'm guessing only 1 hex question--wouldnt it > be better to spend this time/effort elsewhres? > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Skip the HEXquestions--BCMSN?
should I even bother doing the hex questions on BCMSN? I know and understand binary, hex, multicast MAC address (00-00-05e +13 lsbs) very well,hex conversions but why waste the time on the test doing all the messy hEx for 5 minutes? I'm guessing only 1 hex question--wouldnt it be better to spend this time/effort elsewhres? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Difference between Rendezvous Point ,Designated Router
Assuming you are talking about PIM-SM , then where you have two routers (PIM-SM) connected to a shared network with a receiver, a single DR should be chosen for the purpose of sending "joins" to the RP in order to build the share tree for that group. If both routers sent joins to the RP for the group you would have duplicate paths and the host/reciever would receive duplicate multicast traffic. PIM-SM is centered on a single, unidirectional shared tree. The root of the tree is the RP. In a shared tree, sources must send the multicast traffic to the root (RP) for the traffic to reach all receivers. Here is two sites for your reading pleasure. Also the Cisco Press book by Beu Willamson is pretty good. http://www.cisco.com/warp/public/732/Tech/multicast/index.html ftp://ftp-eng.cisco.com/ipmulticast.html "Bradley J. Wilson" wrote: > Er...duh, the DR in a multicast environment. Sorry, brain lock there. > > The DR is again an element on a broadcast network. The DR acts as the > "manager" for that broadcast network if and when it is the upstream network > from another router. The downstream router sends its join/leave requests to > the DR, regardless of the multicast group it is joining or leaving. This > streamlines things from the downstream router's perspective, since it only > needs to interact with one other router across this broadcast network. But > the DR may not be the direct path to the source of the multicast stream, so > the DR might have to forward the request to the correct upstream router > across the same network. > > I'm getting my info from Maufer's "Deploying IP Multicast in the > Enterprise" - which isn't Cisco-specific. Maybe someone else could post > quotes from the Cisco Press books or CCO about the difference. > > BJ > > - Original Message - > From: Bradley J. Wilson > To: cisco > Sent: Saturday, March 03, 2001 5:07 PM > Subject: Re: Difference between Rendezvous Point ,Designated Router > > The rendezvous point is an element in a multicasting environment - can't > recall which protocol off the top of my head, it's probably either PIM-DM > or -SM. > > The designated router is an element of OSPF on a broadcast network > (ethernet, token ring, etc.). The other routers on the network form their > adjacencies with the DR, and the DR makes sure that every router on the > broadcast network have the same LSDB. > > BJ > > - Original Message - > From: rtc > To: Cisco ; CISCO GROUPSTUDY > Cc: Cisco ; CISCO GROUPSTUDY > Sent: Saturday, March 03, 2001 4:48 PM > Subject: Difference between Rendezvous Point ,Designated Router > > what is the Difference between Rendezvous Point and Designated Router? > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How would you Explain it.
PacBell is also offering a "GigaMan" service in selected citiies Priscilla Oppenheimer wrote in message <[EMAIL PROTECTED]>... >We have public IP addresses, our own DNS servers, Web servers, etc. The >only sort of strange thing is that the layer-two LAN crosses the MAN, if >that makes any sense. At our site we just have a two-port switch. A >single-mode fiber link connects our switch to a router port at the >provider's site across town. The provider is connected to the Internet. > >(When the provider said he was installing a two-port switch, I had to laugh >and ask, isn't that a bridge??) > >Priscilla > >At 09:09 AM 3/3/01, Kenneth wrote: >>I'm curious, if you're connected to a switch, then you don't have control >>over your public IP Addresses then such as DNS,... or is this mostly used >>for office to office links as opposed to a gateway to the internet? >> >>I guess the reason i'm wondering is we currently have an entire class C and >>we host our own DNS, web servers, ftp,... and I'm curious as to how this >>would affect our routings if we do go with such a service. >> >> >>Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message >>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> > We upgraded our T1 WAN link that cost $1500 per month to a single-mode >> > fiber-optic 10-Mbps Ethernet MAN link that costs $700 per month. We just >> > have a switch at our site, no router even. Seriously. Our local >> > municipality has a Gigabit Ethernet single-mode fiber-optic ring running >> > around town, and they lease capacity on it. The city is connected to the >> > Internet via a Cisco 7200 and a Sprint T3 link. We piggy back onto that. >> > >> > And I'm in Southern Oregon, a supposedly rural area. It's happening in >> > other towns also. Sometimes I forget how lucky we are! >> > >> > Priscilla >> > >> > At 02:28 PM 3/2/01, Howard C. Berkowitz wrote: >> > > >I have a customer who wants to upgrade his 128K ISDN point to point >> > > >connections to at lease a 10mbps connection. He is thinking along the >>lines >> > > >of LAN technologies. He idea connection is a 1gb connection. How >>would go >> > > >about explaining to this guy that he is out of his mind without >>damaging his >> > > >ego. His the IT manager and thinks he's knowledgeable about networks. >> > > >> > >I wouldn't say he is totally out of his mind, if he's in a geographic >> > >area served by one of the bleeding edge Optical Ethernet providers. >> > >Very rare so far, but there are 100 or 1000 Mbps physical facilities >> > >over which the user pays for the amount of bandwidth he needs. Most >> > >of the ones I'm aware of are in Europe. >> > > >> > >In the vast majority of locations, he is out of his mind. Assuming >> > >he needs 10 Mbps, your choices include inverse multiplexed T1 and >> > >ATM, fractional T3, or 10 Mbps over OC-3 facilities. I had a design >> > >not too long ago where we were able to bring in some of the voice as >> > >well, and found that OC-3 was quite cost-effective. It ran into a >> > >7200. A 3600 is probably the lowest end router to consider. >> > > >> > > > >> > > >btw... >> > > > >> > > >I've gone ahead and gotten quotes on a t1 and t3 lines. I know I can >>use a >> > > >2600 for the T1 connection but what is there a adapter for taking a >>clear >> > > >channel T3 for the 2600 or do I have to look at a 7000 series router. >> > > > >> > > >Thanks, >> > > > >> > > >Keith Townsend >> > > >www.townsendconsulting.com >> > >\ >> > > >> > >_ >> > >FAQ, list archives, and subscription info: >> > >http://www.groupstudy.com/list/cisco.html >> > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >> > >> > >> > >> > >> > Priscilla Oppenheimer >> > http://www.priscilla.com >> > >> > _ >> > FAQ, list archives, and subscription info: >>http://www.groupstudy.com/list/cisco.html >> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >> > >> >> >>_ >>FAQ, list archives, and subscription info: >>http://www.groupstudy.com/list/cisco.html >>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >Priscilla Oppenheimer >http://www.priscilla.com > >_ >FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Can't get console on a Cisco WS-C1924C-A
Hello group, I recently got a hold of a Catalyst WS-C1924C-A. I want to begin the process of upgrading it to Enterprise edition. Problem is I can't get a console on the switch. My original problem was getting something on my HyperTerm/SecureCRT/tips/minicom whatever. I use to get garbage characters. >From recent threads I read that I have to get a hold of a null modem cable which I have. Problem now is when I type something on the emulator I actually see my characters being typed in but I get no output on the screen. The terminal setting are fine (9600 8N1). Should I be rebooting the switch and doing something before startup? I've tried holding down the mode button as it starts up and nothing. The documentation doesn't seem to specify anything specific so that's what I'm asking here. Thanks in advance! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Any ethernet Cabling questions on BCMSN Exam?
I don't remember any, but it's covered in the book so I'd suspect it's fair game. "rtc" wrote in message ... such as 100BaseTX,100Base T4,1000LX and thier ranges? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Flash RAM erro - Cisco 2500
Hi Chances are pretty good that your boot proms do not recognize the newer flash. Call TAC and order new ones, they are free plus shipping. HTH -- John Hardman CCNP MCSE+I ""Ken W. Alger"" <[EMAIL PROTECTED]> wrote in message 97sf8d$6eg$[EMAIL PROTECTED]">news:97sf8d$6eg$[EMAIL PROTECTED]... > I have a 2505, IOS 10.2(6) which I am attempting to add more Flash RAM to in > order to run a more current IOS. I purchased an 8 MB chip, but when I > install it and boot the router up I get the following error that doesn't > occur with the current 4 MB chip: > > ERR: Invalid chip id 0x80B5(reversed: 0x1AD) detected in system flash > > Any ideas as to what this means as I have not encountered this one before. > > Thanks, > Ken > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Route-map
You should be able to run BGP with your 2611, just wont be able to accept full routes. If you upgrade to 128 you could, you might be able to handle partial routes if you have 64. Brandon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jacek Malinowski Sent: Sunday, March 04, 2001 1:27 AM To: [EMAIL PROTECTED] Subject: Route-map I have a big problem with the route-map command. My network looks like : ISP A ISP B | | | | | | --s0--(router 2611)--- s1-- configuration (hypothetical): interface Serial0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1 ip address 100.100.100.100 255.255.255.0 ! interface FastEthernet0 ip address 10.0.0.222 255.255.255.0 secondary ip address 192.168.1.1 255.255.255.0 ip policy route-map POLICY no ip directed-broadcast ! ip classless ip route 0.0.0.0 0.0.0.0 Serial1 no ip http server ! access-list 2 permit 10.0.0.0 0.0.0.255 route-map POLICY permit 10 match ip address 2 set ip next-hop 1.1.1.1 traffic from the network 10.0.0.0 should go through serial 0 and ISP A traffic from the network 192.168.1.0 should go through serial 1 and ISP B. I don't understand how is it possible, that ping from 10.0.0.0 goes through serial 1 and return through serial 0. there is the policy on the ethernet interface. I can't run BGP :( because my router is only 2611 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Any ethernet Cabling questions on BCMSN Exam?
such as 100BaseTX,100Base T4,1000LX and thier ranges? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Flash RAM erro - Cisco 2500
I have a 2505, IOS 10.2(6) which I am attempting to add more Flash RAM to in order to run a more current IOS. I purchased an 8 MB chip, but when I install it and boot the router up I get the following error that doesn't occur with the current 4 MB chip: ERR: Invalid chip id 0x80B5(reversed: 0x1AD) detected in system flash Any ideas as to what this means as I have not encountered this one before. Thanks, Ken _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
***Flaws in IOS 11.x and 12.x***
"Cisco fixes flaw in IOS software" Cisco Systems said there is a vulnerability in all of the 11.x and 12.x versions of its Internetworking Operating System software that could allow an attacker to intercept and modify TCP traffic going to and from routers and switches running the IOS software. Cisco officials said the company has fixes for all of the affected versions and has made them available to all of its customers. SOURCE: eWeek http://www.zdnet.com/eweek/stories/general/0,11011,2691594,00.html _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: [Re: Windows NT DHCP with multiple Scopes]
Two factors converge to make this work. 1.) The IP Helper address Converts the broadcast request to a unicast. The destination being the helper address, and the source address being the Router interface that received the request *Very Important* 2.) The NT server is configured with one interface/IP address. A scope is created for the directly connected network, and a scope is created for the network on the other side of the router. These two scopes are bound together as one superscope. (see NT/DHCP docs for how, like all things NT, it's just a few button-pushes). It works in this way. The DHCP server will assign addresses from a scope which corresponds to the directly connected network on which the receiving interface sits. The superscope binds the secondary network's scope to the directly connected networks scope, in effect, saying "it's ok to assign addresses from this scope to requests on this other directly connected network". Now, to answer your question. The source address of the forwarded request is on the other net (remember the changed source address above?). In this way, the NT server knows that it should assign an address from the other nets pool. HTH -S. Larry Lamb wrote: > > You'll only want the 1 IP on the server if the local network has 1 IP range. > If memory serves me right, you just add a 2nd scope and setup the ip > helper-address to the server. It acts as the DHCP relay and the server will > know the request came from the other network. Hopefully someone will add > something additional if this isn't correct. It's been ages since I've dealt > with this. > > "Hatim badr" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Thank you for your response > > > > I want tp put 2 scopes in that server, which means that I have 1 IP > address or > > evan two but how can I force a client to take from specific scope > > > > Thanks > > > > > > "Larry Lamb" <[EMAIL PROTECTED]> wrote: > > As long as you have a router to move the traffic between the two VLANs, > you > > can use the ip helper-address to forward the broadcast to a known unicast > > address for the DHCP server. > > > > "Hatim badr" <[EMAIL PROTECTED]> wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Dear All, > > > > > > I'm using Windows NT DHCP server with 2 scopes in that server. I'm > > creating 2 > > > VLANs. To be able to use the DHCP with this situation , I'm using 2 NIC > > card , > > > one for each VLAN. > > > > > > I wonder if I can use only one NIC card and the IP HELPER ADDRESS with > it! > > > given that I want to use the same structure, I mean each VLAN has its > own > > > scope. > > > > > > Thanks > > > > > > Hatim > > > > > > > > > > > > Get free email and a permanent address at http://www.netaddress.com/?N=1 > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > Get free email and a permanent address at http://www.netaddress.com/?N=1 > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How would you Explain it.
We have public IP addresses, our own DNS servers, Web servers, etc. The only sort of strange thing is that the layer-two LAN crosses the MAN, if that makes any sense. At our site we just have a two-port switch. A single-mode fiber link connects our switch to a router port at the provider's site across town. The provider is connected to the Internet. (When the provider said he was installing a two-port switch, I had to laugh and ask, isn't that a bridge??) Priscilla At 09:09 AM 3/3/01, Kenneth wrote: >I'm curious, if you're connected to a switch, then you don't have control >over your public IP Addresses then such as DNS,... or is this mostly used >for office to office links as opposed to a gateway to the internet? > >I guess the reason i'm wondering is we currently have an entire class C and >we host our own DNS, web servers, ftp,... and I'm curious as to how this >would affect our routings if we do go with such a service. > > >Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > We upgraded our T1 WAN link that cost $1500 per month to a single-mode > > fiber-optic 10-Mbps Ethernet MAN link that costs $700 per month. We just > > have a switch at our site, no router even. Seriously. Our local > > municipality has a Gigabit Ethernet single-mode fiber-optic ring running > > around town, and they lease capacity on it. The city is connected to the > > Internet via a Cisco 7200 and a Sprint T3 link. We piggy back onto that. > > > > And I'm in Southern Oregon, a supposedly rural area. It's happening in > > other towns also. Sometimes I forget how lucky we are! > > > > Priscilla > > > > At 02:28 PM 3/2/01, Howard C. Berkowitz wrote: > > > >I have a customer who wants to upgrade his 128K ISDN point to point > > > >connections to at lease a 10mbps connection. He is thinking along the >lines > > > >of LAN technologies. He idea connection is a 1gb connection. How >would go > > > >about explaining to this guy that he is out of his mind without >damaging his > > > >ego. His the IT manager and thinks he's knowledgeable about networks. > > > > > >I wouldn't say he is totally out of his mind, if he's in a geographic > > >area served by one of the bleeding edge Optical Ethernet providers. > > >Very rare so far, but there are 100 or 1000 Mbps physical facilities > > >over which the user pays for the amount of bandwidth he needs. Most > > >of the ones I'm aware of are in Europe. > > > > > >In the vast majority of locations, he is out of his mind. Assuming > > >he needs 10 Mbps, your choices include inverse multiplexed T1 and > > >ATM, fractional T3, or 10 Mbps over OC-3 facilities. I had a design > > >not too long ago where we were able to bring in some of the voice as > > >well, and found that OC-3 was quite cost-effective. It ran into a > > >7200. A 3600 is probably the lowest end router to consider. > > > > > > > > > > >btw... > > > > > > > >I've gone ahead and gotten quotes on a t1 and t3 lines. I know I can >use a > > > >2600 for the T1 connection but what is there a adapter for taking a >clear > > > >channel T3 for the 2600 or do I have to look at a 7000 series router. > > > > > > > >Thanks, > > > > > > > >Keith Townsend > > > >www.townsendconsulting.com > > >\ > > > > > >_ > > >FAQ, list archives, and subscription info: > > >http://www.groupstudy.com/list/cisco.html > > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com > > > > _ > > FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN with 1 Spid
As in the areas of the country that assign you 64k ISDN service? In that case, you'll still need two SPIDS if you're using BRI; the 64k restriction just means that the provider doesn't support the multilink function. Enter both SPIDs in your config. With that said, what is the specific problem that you're encountering? Is it that the interface won't come up? Is it that the call won't dial? Is it that the call dials, but won't authenticate? Try using some of the more common debug commands for this scenario: debug isdn events, debug isdn q931, debug isdn q921, debug ppp authentication, debug ppp negotiation, etc.. Only turn up the ones you need or you'll have so much information that it'll be difficult to sort through it all. Good luck, Craig At 05:31 PM 3/3/2001 -0600, you wrote: >What if you only one have B channel? > >""J Roysdon"" <[EMAIL PROTECTED]> wrote in message >97q345$os1$[EMAIL PROTECTED]">news:97q345$os1$[EMAIL PROTECTED]... > > Custom Centrex (sp?) ISDN groups often use single or even no SPIDs. Try > > specifying the SPID twice, or not at all. Basically, the SPID is assigned > > to both B channels. > > > > -- > > Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ > > List email: [EMAIL PROTECTED] > > Homepage: http://jason.artoo.net/ > > Cisco resources: http://r2cisco.artoo.net/ > > > > > > ""John"" <[EMAIL PROTECTED]> wrote in message > > 97pbsf$4n7$[EMAIL PROTECTED]">news:97pbsf$4n7$[EMAIL PROTECTED]... > > > I have included a config I am deploying on a hub-and-spoke deployment >via > > > frame-relay. I am having problems getting the ISDN interface to come up > > > with only one spid. I do not have a strong background in ISDN and would > > > appreciate assistance to tell me where I am going wrong in my config. > > > > > > Thank you in advance for your help. > > > > > > Regards, > > > > > > John Huston > > > [EMAIL PROTECTED] > > > > > > begin config=== > > > > > > service timestamps debug uptime > > > service timestamps log uptime > > > service password-encryption > > > ! > > > hostname me > > > ! > > > enable password you > > > ! > > > logging buffered 4096 debugging > > > ! > > > username test password 0 test > > > username me password 0 you > > > ! > > > ! > > > ! > > > ! > > > memory-size iomem 25 > > > ip subnet-zero > > > no ip domain-lookup > > > ip dhcp excluded-address x.x.x.x x.x.x.x > > > ! > > > ip dhcp pool primary > > >network x.x.x.x x.x.x.x > > >netbios-name-server x.x.x.x > > >default-router x.x.x.x > > >lease 5 > > > ! > > > isdn switch-type basic-ni > > > ! > > > ! > > > ! > > > interface Serial0 > > > ip unnumbered FastEthernet0 > > > encapsulation frame-relay > > > no fair-queue > > > service-module t1 timeslots 23-24 > > > frame-relay map ip x.x.x.x xxx broadcast > > > no shut > > > ! > > > > > > interface BRI0 > > > description Backup ISDN interface > > > ip address x.x.x.x x.x.x.x > > > encapsulation ppp > > > dialer idle-timeout 30 > > > dialer string xxx > > > dialer load-threshold 25 outbound > > > dialer-group 1 > > > isdn switch-type basic-ni > > > isdn spid1 xxx > > > no cdp enable > > > ppp authentication pap callin > > > ppp pap sent-username me password you > > > no shut > > > ! > > > interface FastEthernet0 > > > ip address x.x.x.x x.x.x.x > > > no ip route-cache > > > speed auto > > > no fair-queue > > > no shut > > > ! > > > router eigrp 20 > > > network x.x.x.x > > > ! > > > ip classless > > > no ip http server > > > ! > > > ! > > > map-class dialer 64k > > > access-list 101 deny eigrp any any > > > access-list 101 permit ip any any > > > dialer-list 1 protocol ip list 101 > > > ! > > > line con 0 > > > exec-timeout 0 0 > > > transport input none > > > line aux 0 > > > line vty 0 4 > > > password xxx > > > login > > > ! > > > no scheduler allocate > > > end > > > > > > > > > > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > _ > > FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet MAC <--> Token Ring MAC
Nope...you're right on the money...and with a pretty good explanation too! Craig At 02:34 PM 3/3/2001 -0500, you wrote: >1) For each byte: abcdefgh > >2) Stick an axis right down the middle: abcd efgh (essentially separating >the byte into two nibbles) > >3) Spin the byte around the axis: hgfe dcba > >4) Do this for each byte in the octet separately. The order of the bytes >doesn't change: 1.2.3.4 -> 1.2.3.4 > >So, your example: > . 1100.0110 0101.0100 0011.0010 0001 (which has five bytes, >for some reason, so I'll ignore the last one) > >would translate into: > . 0011 . 1010 0110. 1100 0010 > >That's about it - I think. If I'm wrong, someone please let me know - I've >just started studying for the CCIE written, and this is all from memory of >Rossi's paper (about a week ago :-). > >BJ > > > >- Original Message - >From: Michael Snyder >Newsgroups: groupstudy.cisco >To: [EMAIL PROTECTED] >Sent: Saturday, March 03, 2001 1:45 PM >Subject: Ethernet MAC <--> Token Ring MAC > > >What is the bit by bit method of going from a Ethernet Mac address to a >Tokenring Mac address? > >I've read the paper's, I still can't do it, and I've been doing HEX for >years. > > >For example > >00.00.0c.65.43.21 Ethernet MAC would be? > > . 1100.0110 0101.0100 0011.0010 0001 > >Next step is? > >a) reverse complete bit sequence? 1000 0100.1100 0010.1010 0110. 0011 . >. >b) reverse sequence in groups of four? 0001 0010.0011 0100.0101 0110.1100 > >c) Transpose bits in groups of four, per byte? a.b ->b.a (seen this one a >lot in programing) > >help? > > > > > >""perryb"" <[EMAIL PROTECTED]> wrote in message >007901c0a011$52ec4d00$1e00a8c0@GOLDIE1">news:007901c0a011$52ec4d00$1e00a8c0@GOLDIE1... > > Hi all, > > > > I'm goinf to diverge from the star/bus issue in Mr. Rossi's paper, and > > direct everyones attention to what I believe could be a mistake (clerical > > error) in the paper on the DLSW piece. > > > > Directly underneath Mr. Rossi's very first DLSW diagram, you see the RIF > > values for "Router_A," and "Router_B." Isn't the RIF show for "Router_B" > > just a tad bit inverted and incorrect ? Shouldn't it read >"0630.00a1.0230" > > instead? The reason that I say this is because I had a "not so different" > > question on a recent exam. On this exam there were no "none of the above" > > responses and only two possible valid RIFs. The only plausable response >was > > in the order that I describe above. > > > > > > Forgive me if this has already been pointed out before. > > - Original Message - > > From: <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Monday, February 26, 2001 6:45 AM > > Subject: RE: Lou Rossi's Token Ring paper > > > > > > > I agree with Nigel. It should be a physical star and a logical ring. > > > > > > Cletus Ugwu > > > > > > -Original Message- > > > From: Nigel van Tura [mailto:[EMAIL PROTECTED]] > > > Sent: Monday, February 26, 2001 7:29 AM > > > To: Bradley J. Wilson; [EMAIL PROTECTED] > > > Subject: RE: Lou Rossi's Token Ring paper > > > > > > > > > But Bradley > > > > > > If we connect all to the MAU as a central hub then it becomes a physical > > > star and a logical ring inside the MAU. > > > > > > Or what ? > > > Nigel van Tura > > > > > > -Original Message- > > > From: Bradley J. Wilson [mailto:[EMAIL PROTECTED]] > > > Sent: 24 February 2001 01:50 > > > To: cisco > > > Subject: Lou Rossi's Token Ring paper > > > > > > > > > I'm sitting here reading Lou Rossi's Token Ring paper, and right off the > > bat > > > I have a question: > > > > > > He says that token ring is "a physical ring and a logical bus" - but >isn't > > > this backward? Isn't it a physical bus and a logical ring? We're not > > > physically connecting stations together in a ring - they're all plugged > > into > > > a MAU and the "ring" is a logical entity inside the MAU, isn't it? > > > > > > Thanks in advance, > > > > > > BJ > > > > > > > > > > > > _ > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > _ > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Non
Re: **Login Scripts (Long)
> I have users in branches all across the company that logon to other > BDC's in other city's. Eg. Someone in vancouver logging into say > montreal. > Does anyone know of a port that I can block that off of each branch > router ( im currently using 3661's ) to stop that. Or a Win2k setting I > can modify to specify what server to login to?.I know i can probably > specify that in that in the login script, if so, What command do I use? > Or a registry setting in Win2k/9x I assume that you are using NT 4 servers in the backend? If you are using Win2K servers, you can make the NT/9x clients Active Directory aware by installing DSClient.exe, which will 'encourage' the clients to authenticate with their local DC before running over the WAN to a random DC. There is no real way to control what DC authenticates a client in the NT 4 world, and you can't block a logon script 'port' as the client runs the logon script using a UNC path (ie. \\DCNAME\netlogon\yourscript.bat). The only way to stop this would be to block all file sharing traffic over the link (which I assume you don't). A way around the problem is to use a batch file that allows initial authentication to occur at any DC, but then forces the logon script to execute from a local DC. The basic idea is to run ipconfig on the client, which will output the IP address, network mask and default router. These settings are saved to a text file and can be searched the matches on the default router value can be made to determine the LAN that the user is logging in from. Sample script: @echo off rem The CFG_SVR is your 'default' DC, probably the PDC or at least a DC rem closest to the 'centre' of your NT network. This is an initial value to rem ensure that the script always has a server to contact. set CFG_SVR=DEFDC rem If Windows 95 - need to copy down ipconfig.exe in order to rem complete the following task. Always do the initial copy rem from CFG_SVR. All other OS's have a compatible copy of rem ipconfig.exe installed with their TCP/IP stack. ver | find /I "95" if not errorlevel 1 goto 95_98 goto ALL_SYS :95_98 if not exist %windir%\ipconfig.exe copy \\LOGON5\netlogon\bin\ipconfig.exe %windir%\ipconfig.exe :ALL_SYS net use /persistent:no > NUL rem Find the current subnetwork by checking the output from ipconfig rem against a list of known default router addresses ipconfig > %windir%\ipconfig.logon type %windir%\ipconfig.logon | find /I "10.1.1.254" > NUL if not errorlevel 1 goto SITE1 type %windir%\ipconfig.logon | find /I "10.1.1.254" > NUL if not errorlevel 1 goto SITE2 goto SLOW_NET :SITE1 rem In this section you set the CFG_SVR variable to a DC at the specific site rem that you are trying to control the logon script for. Then once you have rem set the variable, you can execute a logon script on a specific server that rem has been created for this site only. Remember that the CFG_SVR rem variable will be available to the new batch file (in this case SITE1.bat) rem so you can use it to launch other processes on a specific server in a rem controlled fashion. set CFG_SVR=SITE1DC echo. echo Current LAN: SITE1 echo LAN Logon Server: %CFG_SVR% start /wait \\%CFG_SVR%\netlogon\SITE1.bat goto RUN_MAIN :SITE2 set CFG_SVR=SITE2DC echo Current LAN: SITE2 echo LAN Logon Server: %CFG_SVR% start /wait \\%CFG_SVR%\netlogon\SITE1.bat goto RUN_MAIN :SLOW_NET rem This part of the script is just a handler for unknown rem networks or in the event of an error. set CFG_SVR=DEFDC echo. echo Current LAN: Remote or Unknown echo LAN Logon Server: %CFG_SVR% echo echo NOTICE: echo. echo You have connected to the network echo from an unknown or undefined location echo. echo Please call the Help Desk for Assistance. echo. pause goto RUN_MAIN :RUN_MAIN echo Script Completed set CFG_SVR= Hope this helps. Regards Adam Burgess Brisbane, Australia _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN with 1 Spid
What if you only one have B channel? ""J Roysdon"" <[EMAIL PROTECTED]> wrote in message 97q345$os1$[EMAIL PROTECTED]">news:97q345$os1$[EMAIL PROTECTED]... > Custom Centrex (sp?) ISDN groups often use single or even no SPIDs. Try > specifying the SPID twice, or not at all. Basically, the SPID is assigned > to both B channels. > > -- > Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ > List email: [EMAIL PROTECTED] > Homepage: http://jason.artoo.net/ > Cisco resources: http://r2cisco.artoo.net/ > > > ""John"" <[EMAIL PROTECTED]> wrote in message > 97pbsf$4n7$[EMAIL PROTECTED]">news:97pbsf$4n7$[EMAIL PROTECTED]... > > I have included a config I am deploying on a hub-and-spoke deployment via > > frame-relay. I am having problems getting the ISDN interface to come up > > with only one spid. I do not have a strong background in ISDN and would > > appreciate assistance to tell me where I am going wrong in my config. > > > > Thank you in advance for your help. > > > > Regards, > > > > John Huston > > [EMAIL PROTECTED] > > > > begin config=== > > > > service timestamps debug uptime > > service timestamps log uptime > > service password-encryption > > ! > > hostname me > > ! > > enable password you > > ! > > logging buffered 4096 debugging > > ! > > username test password 0 test > > username me password 0 you > > ! > > ! > > ! > > ! > > memory-size iomem 25 > > ip subnet-zero > > no ip domain-lookup > > ip dhcp excluded-address x.x.x.x x.x.x.x > > ! > > ip dhcp pool primary > >network x.x.x.x x.x.x.x > >netbios-name-server x.x.x.x > >default-router x.x.x.x > >lease 5 > > ! > > isdn switch-type basic-ni > > ! > > ! > > ! > > interface Serial0 > > ip unnumbered FastEthernet0 > > encapsulation frame-relay > > no fair-queue > > service-module t1 timeslots 23-24 > > frame-relay map ip x.x.x.x xxx broadcast > > no shut > > ! > > > > interface BRI0 > > description Backup ISDN interface > > ip address x.x.x.x x.x.x.x > > encapsulation ppp > > dialer idle-timeout 30 > > dialer string xxx > > dialer load-threshold 25 outbound > > dialer-group 1 > > isdn switch-type basic-ni > > isdn spid1 xxx > > no cdp enable > > ppp authentication pap callin > > ppp pap sent-username me password you > > no shut > > ! > > interface FastEthernet0 > > ip address x.x.x.x x.x.x.x > > no ip route-cache > > speed auto > > no fair-queue > > no shut > > ! > > router eigrp 20 > > network x.x.x.x > > ! > > ip classless > > no ip http server > > ! > > ! > > map-class dialer 64k > > access-list 101 deny eigrp any any > > access-list 101 permit ip any any > > dialer-list 1 protocol ip list 101 > > ! > > line con 0 > > exec-timeout 0 0 > > transport input none > > line aux 0 > > line vty 0 4 > > password xxx > > login > > ! > > no scheduler allocate > > end > > > > > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: dumb Linux terminal-router question
minitab or minicom? i believe it is minicom. i use the same! Rod - Original Message - From: "Roberts, Timothy" <[EMAIL PROTECTED]> To: "'Priscilla Oppenheimer'" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Friday, March 02, 2001 11:57 PM Subject: RE: dumb Linux terminal-router question > Yes he will. Most distributions of Linux come with a program called > Minitab. It is similar to HyperTerminal. > > -Original Message- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 02, 2001 3:48 PM > To: [EMAIL PROTECTED] > Subject: dumb Linux terminal-router question > > > Next week I'm teaching basic router configuration to some high school > students. One of the students has a notebook computer that runs Linux. > Assuming there is a normal serial port on the notebook, will he able to > easily run a terminal emulator to connect to the console port on the Cisco > routers? > > I know he'll be able to do Telnet once we have an initial config, but > before we get to that point, can he config the routers in a similar fashion > to the HyperTerminal the Windoze users will be using? > > Thank-you very much for your help. > > Priscilla > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Difference between Rendezvous Point ,Designated Router
RTC, I'm studying for my BCMSN right now (test Monday). Coming from an ISP background (high end routers), I'm not used to this "Campus Network" type stuff. I'm reading Karen Webb's Cisco Press book. She mentions DRs in the Multicast section. She states that DRs are elected on Multi-access Segments for both PIM-SM and PIM-DM configurations. She doesn't explain it real deeply (not like you see explanations for the DR/BDR setup of OSPF). But she does say that the routers that are PIM enabled elect the router with the Highest IP address as the DR for the network. In this scenario the DR is responsible for sending out the IGMP query messages. And similar to OSPF, you don't need a DR on point-to-point links. The Rendezvous Point is needed when you configure a router with PIM sparse-mode. Unlike the DR that's used regardless of PIM-SM or PIM-DM. I'm starting to get the feeling that the Rendezvous Point is more important when the hosts that are part of the multicast group are widely spread out through the network. I'd really like to hear from someone experienced with Multicast, my exposure to it is all book-based. This will be the weakest part of my CCNP. Chris -Original Message- From: rtc [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 03, 2001 4:48 PM To: Cisco; CISCO GROUPSTUDY Cc: Cisco; CISCO GROUPSTUDY Subject: Difference between Rendezvous Point ,Designated Router what is the Difference between Rendezvous Point and Designated Router? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How would you Explain it.
I don't think it's fair to say that they don't have control of DNS or public IP space. I've got a customer now leasing bandwidth in a very similar setup...a 10Mb fiber connection to a local switch. These guys are assigned then assigned a /26 to use as they see fit. Their DNS is maintained locally on the "public" side of the network. They also have a router that NATs from the private internal network to the public block of IPs. In your case, you have a /24 block available on which you host all of your network. Assuming that your provider has the Ethernet MAN type service available, and you want them to use your current block and setup this service, you'd have to allocate one of your local addresses to them to use on their router's Ethernet interface, and then change your nodes to point to the new gateway. You'd still have full control of DNS and your /24 IP allocation, though you'll have to work closely with the provider on policy decisions. If your provider doesn't offer this service and you go with a new provider, you'll either have to readdress your network or implement NAT with non-RFC1918 addresses on your inside network (not recommended). In either case, it's still possible for you to maintain control of your address allocations. Craig At 09:09 AM 3/3/2001 -0500, you wrote: >I'm curious, if you're connected to a switch, then you don't have control >over your public IP Addresses then such as DNS,... or is this mostly used >for office to office links as opposed to a gateway to the internet? > >I guess the reason i'm wondering is we currently have an entire class C and >we host our own DNS, web servers, ftp,... and I'm curious as to how this >would affect our routings if we do go with such a service. > > >Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > We upgraded our T1 WAN link that cost $1500 per month to a single-mode > > fiber-optic 10-Mbps Ethernet MAN link that costs $700 per month. We just > > have a switch at our site, no router even. Seriously. Our local > > municipality has a Gigabit Ethernet single-mode fiber-optic ring running > > around town, and they lease capacity on it. The city is connected to the > > Internet via a Cisco 7200 and a Sprint T3 link. We piggy back onto that. > > > > And I'm in Southern Oregon, a supposedly rural area. It's happening in > > other towns also. Sometimes I forget how lucky we are! > > > > Priscilla > > > > At 02:28 PM 3/2/01, Howard C. Berkowitz wrote: > > > >I have a customer who wants to upgrade his 128K ISDN point to point > > > >connections to at lease a 10mbps connection. He is thinking along the >lines > > > >of LAN technologies. He idea connection is a 1gb connection. How >would go > > > >about explaining to this guy that he is out of his mind without >damaging his > > > >ego. His the IT manager and thinks he's knowledgeable about networks. > > > > > >I wouldn't say he is totally out of his mind, if he's in a geographic > > >area served by one of the bleeding edge Optical Ethernet providers. > > >Very rare so far, but there are 100 or 1000 Mbps physical facilities > > >over which the user pays for the amount of bandwidth he needs. Most > > >of the ones I'm aware of are in Europe. > > > > > >In the vast majority of locations, he is out of his mind. Assuming > > >he needs 10 Mbps, your choices include inverse multiplexed T1 and > > >ATM, fractional T3, or 10 Mbps over OC-3 facilities. I had a design > > >not too long ago where we were able to bring in some of the voice as > > >well, and found that OC-3 was quite cost-effective. It ran into a > > >7200. A 3600 is probably the lowest end router to consider. > > > > > > > > > > >btw... > > > > > > > >I've gone ahead and gotten quotes on a t1 and t3 lines. I know I can >use a > > > >2600 for the T1 connection but what is there a adapter for taking a >clear > > > >channel T3 for the 2600 or do I have to look at a 7000 series router. > > > > > > > >Thanks, > > > > > > > >Keith Townsend > > > >www.townsendconsulting.com > > >\ > > > > > >_ > > >FAQ, list archives, and subscription info: > > >http://www.groupstudy.com/list/cisco.html > > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com > > > > _ > > FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Be happy and in bliss.
Cisco Certified Internetwork Expert (CCIE) status, the master builders of the New World of networking. Yeah!! That is us. Keep working hard. We are the future and the only one at that _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Difference between Rendezvous Point ,Designated Router
Er...duh, the DR in a multicast environment. Sorry, brain lock there. The DR is again an element on a broadcast network. The DR acts as the "manager" for that broadcast network if and when it is the upstream network from another router. The downstream router sends its join/leave requests to the DR, regardless of the multicast group it is joining or leaving. This streamlines things from the downstream router's perspective, since it only needs to interact with one other router across this broadcast network. But the DR may not be the direct path to the source of the multicast stream, so the DR might have to forward the request to the correct upstream router across the same network. I'm getting my info from Maufer's "Deploying IP Multicast in the Enterprise" - which isn't Cisco-specific. Maybe someone else could post quotes from the Cisco Press books or CCO about the difference. BJ - Original Message - From: Bradley J. Wilson To: cisco Sent: Saturday, March 03, 2001 5:07 PM Subject: Re: Difference between Rendezvous Point ,Designated Router The rendezvous point is an element in a multicasting environment - can't recall which protocol off the top of my head, it's probably either PIM-DM or -SM. The designated router is an element of OSPF on a broadcast network (ethernet, token ring, etc.). The other routers on the network form their adjacencies with the DR, and the DR makes sure that every router on the broadcast network have the same LSDB. BJ - Original Message - From: rtc To: Cisco ; CISCO GROUPSTUDY Cc: Cisco ; CISCO GROUPSTUDY Sent: Saturday, March 03, 2001 4:48 PM Subject: Difference between Rendezvous Point ,Designated Router what is the Difference between Rendezvous Point and Designated Router? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Difference between Rendezvous Point ,Designated Router
The rendezvous point is an element in a multicasting environment - can't recall which protocol off the top of my head, it's probably either PIM-DM or -SM. The designated router is an element of OSPF on a broadcast network (ethernet, token ring, etc.). The other routers on the network form their adjacencies with the DR, and the DR makes sure that every router on the broadcast network have the same LSDB. BJ - Original Message - From: rtc To: Cisco ; CISCO GROUPSTUDY Cc: Cisco ; CISCO GROUPSTUDY Sent: Saturday, March 03, 2001 4:48 PM Subject: Difference between Rendezvous Point ,Designated Router what is the Difference between Rendezvous Point and Designated Router? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
mega multicast question
Take these 3 pairs DR VICE RP SPARSE VICE DENSE SHARED VICE SOURCE TREE make the 3 sqared=9 possibilities, such as: Explain what the Designated Router does when sparse mode on a shared Tree? Explain what the DR does in dense mode on a source tree? Explain what the RP does in dense mode on a shared tree? etc. after this i guess multicast would no longer be confusing _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Difference between Rendezvous Point ,Designated Router
what is the Difference between Rendezvous Point and Designated Router? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ethernet MAC <--> Token Ring MAC
1) For each byte: abcdefgh 2) Stick an axis right down the middle: abcd efgh (essentially separating the byte into two nibbles) 3) Spin the byte around the axis: hgfe dcba 4) Do this for each byte in the octet separately. The order of the bytes doesn't change: 1.2.3.4 -> 1.2.3.4 So, your example: . 1100.0110 0101.0100 0011.0010 0001 (which has five bytes, for some reason, so I'll ignore the last one) would translate into: . 0011 . 1010 0110. 1100 0010 That's about it - I think. If I'm wrong, someone please let me know - I've just started studying for the CCIE written, and this is all from memory of Rossi's paper (about a week ago :-). BJ - Original Message - From: Michael Snyder Newsgroups: groupstudy.cisco To: [EMAIL PROTECTED] Sent: Saturday, March 03, 2001 1:45 PM Subject: Ethernet MAC <--> Token Ring MAC What is the bit by bit method of going from a Ethernet Mac address to a Tokenring Mac address? I've read the paper's, I still can't do it, and I've been doing HEX for years. For example 00.00.0c.65.43.21 Ethernet MAC would be? . 1100.0110 0101.0100 0011.0010 0001 Next step is? a) reverse complete bit sequence? 1000 0100.1100 0010.1010 0110. 0011 . . b) reverse sequence in groups of four? 0001 0010.0011 0100.0101 0110.1100 c) Transpose bits in groups of four, per byte? a.b ->b.a (seen this one a lot in programing) help? ""perryb"" <[EMAIL PROTECTED]> wrote in message 007901c0a011$52ec4d00$1e00a8c0@GOLDIE1">news:007901c0a011$52ec4d00$1e00a8c0@GOLDIE1... > Hi all, > > I'm goinf to diverge from the star/bus issue in Mr. Rossi's paper, and > direct everyones attention to what I believe could be a mistake (clerical > error) in the paper on the DLSW piece. > > Directly underneath Mr. Rossi's very first DLSW diagram, you see the RIF > values for "Router_A," and "Router_B." Isn't the RIF show for "Router_B" > just a tad bit inverted and incorrect ? Shouldn't it read "0630.00a1.0230" > instead? The reason that I say this is because I had a "not so different" > question on a recent exam. On this exam there were no "none of the above" > responses and only two possible valid RIFs. The only plausable response was > in the order that I describe above. > > > Forgive me if this has already been pointed out before. > - Original Message - > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, February 26, 2001 6:45 AM > Subject: RE: Lou Rossi's Token Ring paper > > > > I agree with Nigel. It should be a physical star and a logical ring. > > > > Cletus Ugwu > > > > -Original Message- > > From: Nigel van Tura [mailto:[EMAIL PROTECTED]] > > Sent: Monday, February 26, 2001 7:29 AM > > To: Bradley J. Wilson; [EMAIL PROTECTED] > > Subject: RE: Lou Rossi's Token Ring paper > > > > > > But Bradley > > > > If we connect all to the MAU as a central hub then it becomes a physical > > star and a logical ring inside the MAU. > > > > Or what ? > > Nigel van Tura > > > > -Original Message- > > From: Bradley J. Wilson [mailto:[EMAIL PROTECTED]] > > Sent: 24 February 2001 01:50 > > To: cisco > > Subject: Lou Rossi's Token Ring paper > > > > > > I'm sitting here reading Lou Rossi's Token Ring paper, and right off the > bat > > I have a question: > > > > He says that token ring is "a physical ring and a logical bus" - but isn't > > this backward? Isn't it a physical bus and a logical ring? We're not > > physically connecting stations together in a ring - they're all plugged > into > > a MAU and the "ring" is a logical entity inside the MAU, isn't it? > > > > Thanks in advance, > > > > BJ > > > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Looking for Catalyst 5000 parts
Hey all- I picked up a stripped 5005 fairly reasonably... I'm looking for: blank shelf covers power supply cover Supervisor I WS-X5213A (12 port 10/100) Thanks Phil _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
passed routing - THANKS!
Hi Everyone, I just wanted to say thanks to all the posters on this list. I've mostly been a lurker on this list, but the knowledge gained from those who do post helped me pass BSCN with a 931. This test was incredibly more difficult than both the CCNA and BCMSN tests. I thought for sure I failed that thing! take care, brad --- Brad Beck Network Engineer Macromedia, Inc. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Ethernet MAC <--> Token Ring MAC
What is the bit by bit method of going from a Ethernet Mac address to a Tokenring Mac address? I've read the paper's, I still can't do it, and I've been doing HEX for years. For example 00.00.0c.65.43.21 Ethernet MAC would be? . 1100.0110 0101.0100 0011.0010 0001 Next step is? a) reverse complete bit sequence? 1000 0100.1100 0010.1010 0110. 0011 . . b) reverse sequence in groups of four? 0001 0010.0011 0100.0101 0110.1100 c) Transpose bits in groups of four, per byte? a.b ->b.a (seen this one a lot in programing) help? ""perryb"" <[EMAIL PROTECTED]> wrote in message 007901c0a011$52ec4d00$1e00a8c0@GOLDIE1">news:007901c0a011$52ec4d00$1e00a8c0@GOLDIE1... > Hi all, > > I'm goinf to diverge from the star/bus issue in Mr. Rossi's paper, and > direct everyones attention to what I believe could be a mistake (clerical > error) in the paper on the DLSW piece. > > Directly underneath Mr. Rossi's very first DLSW diagram, you see the RIF > values for "Router_A," and "Router_B." Isn't the RIF show for "Router_B" > just a tad bit inverted and incorrect ? Shouldn't it read "0630.00a1.0230" > instead? The reason that I say this is because I had a "not so different" > question on a recent exam. On this exam there were no "none of the above" > responses and only two possible valid RIFs. The only plausable response was > in the order that I describe above. > > > Forgive me if this has already been pointed out before. > - Original Message - > From: <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, February 26, 2001 6:45 AM > Subject: RE: Lou Rossi's Token Ring paper > > > > I agree with Nigel. It should be a physical star and a logical ring. > > > > Cletus Ugwu > > > > -Original Message- > > From: Nigel van Tura [mailto:[EMAIL PROTECTED]] > > Sent: Monday, February 26, 2001 7:29 AM > > To: Bradley J. Wilson; [EMAIL PROTECTED] > > Subject: RE: Lou Rossi's Token Ring paper > > > > > > But Bradley > > > > If we connect all to the MAU as a central hub then it becomes a physical > > star and a logical ring inside the MAU. > > > > Or what ? > > Nigel van Tura > > > > -Original Message- > > From: Bradley J. Wilson [mailto:[EMAIL PROTECTED]] > > Sent: 24 February 2001 01:50 > > To: cisco > > Subject: Lou Rossi's Token Ring paper > > > > > > I'm sitting here reading Lou Rossi's Token Ring paper, and right off the > bat > > I have a question: > > > > He says that token ring is "a physical ring and a logical bus" - but isn't > > this backward? Isn't it a physical bus and a logical ring? We're not > > physically connecting stations together in a ring - they're all plugged > into > > a MAU and the "ring" is a logical entity inside the MAU, isn't it? > > > > Thanks in advance, > > > > BJ > > > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: wildcard in access-list
>I have two parts of a large network, the first part using 141.120.0.0 >thru 141.120.7.255 and the second part using 141.120.128.0 thru >141.120.135.255. At the router connecting to Internet I want access from >outside limited only to these subnets and not to other addresses used. I >know that the following will work for TCP: > >access-list 101 tcp permit any 141.120.0.0 0.0.7.255 >access-list 101 tcp permit any 141.120.128.0 0.0.7.255 > >I want to condesnse this to a single statement as follows: > >access-list 101 tcp permit any 141.120.0.0 0.0.135.255 Why? Or, to put in other terms, how would you like to find that access list statement in an undocumented configuration you've just been asked to troubleshoot? A good rule of thumb: suspect any mask octet that doesn't have contiguous bits, unless you are EXACTLY sure why it's being done: Subnet Wildcard -- 255 0 254 1 252 3 248 7 240 15 224 31 192 63 128 127 0 255 > >Will this work? >For example 141.120.9.2 should not be allowed. >In binary 141.120.9.2 is 10001101.0000.1001.0010. > >My understanding of the steps of how the access-list works is : > >1) perform a NOT the mask, which gives in binary > ..0000. >2) perform an AND between this and the IP address, which gives in binary > 10001101.0000.1000. >3) compare the result with the original IP address in the access-list > the comparison fails >4) if successful, allow, otherwise drop. > so the packet is dropped. > >Is the above correct? >I don't have a lab to test this. I would appreciate any help. Thanks. > >Nelluri _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE Passed
Congratulations Jayesh! I know for a fact how hard its been. I hope to join you in the winners circle too! Corby Tate - Original Message - From: Jayesh Patel <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, March 03, 2001 11:05 AM Subject: CCIE Passed > Hello to everyone > > I am writting with great pleasure to inform you guys and girls that i > have passed my CCIE Written today. I would be grateful if someone > could guide me on the LAB. The postings of the group have been very > helpful. > > > -- > Best regards, > Jayesh mailto:[EMAIL PROTECTED] > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Doing things backwards - Question for the CCDPs in the list.
I have done a groupstudy archive search. It is well documented that Top-Down Network Design is an excellent design guide and prep tool for CCDA. In addition to this book, and work experience, what is recommended in preparation for the CID exam? Two recommendations from the archive were: Internetwork Design Guide http://www.cisco.com/univercd/cc/td/doc/cisintwk/idg4/ and Online Course Material http://www.vstream.com/login/CISCOCID/CISCOCID_login.vhtm Scott T. Wolfe CCNP, MCSE+I, CCDA "Priscilla Oppenheimer" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > CID and DCN are quite different, but that doesn't mean you'll have a hard > time with DCN necessarily. DCN tests design skills and knowledge about > design methodologies, whereas CID tests technology knowledge. DCN has case > studies and expects you to glean requirements, info about the existing > network, etc. from the case study. DCN is focused on small to medium-sized > networks, whereas CID is supposedly for larger networks (despite the > zillions of Microsoft networking questions on CID). > > If you have experience, you might do fine on DCN without studying, but your > best bet is to do a bit of studying, especially since Cisco expects you to > know their methodology. For example, when would you test your design using > a prototype versus a pilot? (A question that I'm sure I missed since I > still don't understand how Cisco distinguishes the two. &;-) > > Priscilla > > At 09:17 AM 3/2/01, you wrote: > >I know that this is not the list for CCDA questions but I hope that you will > >humor me. I have recently completed CCNP and studied with another engineer > >who was already CCDA certified. We studied for the CID (640-025) exam > >together and I passed this exam today. My question is this: Is the DCN > >(CCDA) exam sufficiently different from the CID that I will need to study > >for it separately or will the prep for the CID exam suffice. Thanks in > >advance for your advice. > > > >Nathan Miller, CCNP > >Enterprise Network Engineer > >Catholic Healthcare West > >602-307-2659 > > > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
wildcard in access-list
I have two parts of a large network, the first part using 141.120.0.0 thru 141.120.7.255 and the second part using 141.120.128.0 thru 141.120.135.255. At the router connecting to Internet I want access from outside limited only to these subnets and not to other addresses used. I know that the following will work for TCP: access-list 101 tcp permit any 141.120.0.0 0.0.7.255 access-list 101 tcp permit any 141.120.128.0 0.0.7.255 I want to condesnse this to a single statement as follows: access-list 101 tcp permit any 141.120.0.0 0.0.135.255 Will this work? For example 141.120.9.2 should not be allowed. In binary 141.120.9.2 is 10001101.0000.1001.0010. My understanding of the steps of how the access-list works is : 1) perform a NOT the mask, which gives in binary ..0000. 2) perform an AND between this and the IP address, which gives in binary 10001101.0000.1000. 3) compare the result with the original IP address in the access-list the comparison fails 4) if successful, allow, otherwise drop. so the packet is dropped. Is the above correct? I don't have a lab to test this. I would appreciate any help. Thanks. Nelluri _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Route-map
Jacek, You can run BGP, it doesn't matter that your router is only a 2611. What matters is how many routes you receive from your ISP (or from both ISPs as is your case). True, your router might not be too happy getting 97,000+ routes from both ISP's, but who says you need any routes from your ISP.?. Not knowing your true config leaves questions. So let me make some assumptions. Look at this from 4 perspectives. Outbound/Inbound with ISP A and Outbound/Inbound with ISP B. ISP A (Outbound) You could set your default route out to serial 0. This would make ISP A your primary path out. ISP A (Inbound) You don't need any routes from this ISP if it's your default out anyway. Adding another twist, suppose you have a /24. You could advertise a couple /25's to this ISP (if they'll let you), via the BGP that you turn on with them. ISP B (Outbound) You could set another default (weighted) to make ISP B your secondary route out via serial 1. You don't need this ISP to send you routes if they are merely a default route out. ISP B (Inbound) Again, using the example that you have a /24, you could advertise some other /25's to this ISP (if they'll let you). Summary You'll most likely need your own AS. Alot of providers don't like routing to a customer if that customer is multi-homed and doesn't have their own AS. By breaking up the /24 and sending some of it to one provider and some of it to the other provider, you can build in some "resilience" in case one ISP's routing breaks or one of your WAN lines drop. That way, people can always reach atleast some of the networks you have onsite. To further add "resilience", advertise to ISP A the networks your sending to ISP B with heavy weights (AS-Path prepend, Local Pref, etc..keeping in mind that some attributes are Transitive and some are not). That way if ISP B breaks, all of your networks will now be available via ISP A. Do the same for ISP B, advertise your ISP A advertised networks with a larger value so that if ISP A breaks, ISP B can now advertise all of your routes. Hope this helps Chris -Original Message- From: Jacek Malinowski [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 03, 2001 9:27 AM To: [EMAIL PROTECTED] Subject: Route-map I have a big problem with the route-map command. My network looks like : ISP A ISP B | | | | | | --s0--(router 2611)--- s1-- configuration (hypothetical): interface Serial0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1 ip address 100.100.100.100 255.255.255.0 ! interface FastEthernet0 ip address 10.0.0.222 255.255.255.0 secondary ip address 192.168.1.1 255.255.255.0 ip policy route-map POLICY no ip directed-broadcast ! ip classless ip route 0.0.0.0 0.0.0.0 Serial1 no ip http server ! access-list 2 permit 10.0.0.0 0.0.0.255 route-map POLICY permit 10 match ip address 2 set ip next-hop 1.1.1.1 traffic from the network 10.0.0.0 should go through serial 0 and ISP A traffic from the network 192.168.1.0 should go through serial 1 and ISP B. I don't understand how is it possible, that ping from 10.0.0.0 goes through serial 1 and return through serial 0. there is the policy on the ethernet interface. I can't run BGP :( because my router is only 2611 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Passed
Hello to everyone I am writting with great pleasure to inform you guys and girls that i have passed my CCIE Written today. I would be grateful if someone could guide me on the LAB. The postings of the group have been very helpful. -- Best regards, Jayesh mailto:[EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Passed CID 2 complete CCDP
Hi there, Passed the CID exam yesterday (3/2) to complete my CCDP exam. I completely agree with group member, John Neiberger who had posted a message about this exam yesterday. Many questions have multiple correct answers and Cisco wants you to choose the best answer and not just the right answer. Confusing, isn't it? - and that's all the exam is all about. I used the Sybex book by Robert Pajden and it was good - however, just as many members had indicated in the past this book alone is not sufficient enough to pass the exam. I like the simplicity of this book. Hope Robert doesn't get mad at me for this claim! I supplemented the Sybex book with some course material on sections like SNA, NetBios, Apple Talk and X25. My work experience came in very handy. By the way, did I tell you that I passed the exam with the least margin of all the Cisco exams I had taken so far. I scored 776/1000 and the passing score is 755. But, who cares atleast I passed it in the first attempt. The exam is 100 questions, 2 hours and not too many multiple choice questions. Onto the CCNP-ATM specialization before moving to the CCIE written. Good luck to all out there! Cheers, Sundar Palaniappan MCSE, CCNP, CCDP.. Customer Support Engineer 2 Verizon _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Frame Relay Charges
Let me just say this - I work for Sprint Local Telephone Division (LTD) and we do not do 0 CIR. Sprint Long Distance Division (LDD) does do 0 CIR. It is just a difference in philosophy. I have spoken with some LDD engineers and their justification is that their network is so robust that there is no need for an actual CIR. It always surprises me that the sales guys don't go nuts at this because CIR is added revenue for them! Andrew Cook > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Kenneth > Sent: Saturday, March 03, 2001 10:46 AM > To: [EMAIL PROTECTED] > Subject: Re: Frame Relay Charges > > > That's true. All packets will be DE marked but 99% of the time, these DE > marked packets will get through - that's what our SLA with them is. Their > reason for this is that their network is "bleeding edge" and that they are > willing to create an SLA for 0 CIR as compared to most providers who won't > promise you anything. > > You can pay, like i said, for CIR and their SLA will guarantee > 99.99% packet > delivery up to CIR. > > > Lauren Child <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > > > Kenneth wrote: > > > > > > I'm not sure who the provider is but 0 CIR sounds like "Sprint-speak". > > > > Id imagine it would be fine if you get garuantees as to how much would > > get through but a 0CIR means all our frames would be discard eligible, > > so you couldnt garuntee anything getting through. It would be a bit > > like shared etherenet - fine unless you experience congestion and then > > its pot luck who's frames get through. You are at the mercy of the > > telco's oversubscription. > > > > TTFN > > Lauren > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Route-map
The traffic is going to return through the ISP who owns the netblock you're using. If ISP owns the IP, the traffic will return via that ISP no matter which way you send it, as that ISP is announcing it (most likely in a larger netblock). -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Cisco resources: http://r2cisco.artoo.net/ ""Jacek Malinowski"" <[EMAIL PROTECTED]> wrote in message 97r9gs$u7h$[EMAIL PROTECTED]">news:97r9gs$u7h$[EMAIL PROTECTED]... > Sorry, there is a bug in my hypothetical configuration. > in set ip next-hope > should be ISP A (1.1.1.2) > > > ""Bradley J. Wilson"" <[EMAIL PROTECTED]> wrote in message > 014301c0a3fa$e349f400$f402f7a5@bwilson">news:014301c0a3fa$e349f400$f402f7a5@bwilson... > > This is just a guess, but how about setting the next hop in the route-map > to > > the IP address of ISP A? > > > > > > - Original Message - > > From: Jacek Malinowski > > Newsgroups: groupstudy.cisco > > To: [EMAIL PROTECTED] > > Sent: Saturday, March 03, 2001 9:27 AM > > Subject: Route-map > > > > > > I have a big problem with the route-map command. > > My network looks like : > > > > ISP A ISP B > > | | > > | | > > | | > > --s0--(router 2611)--- s1-- > > > > configuration (hypothetical): > > > > interface Serial0 > > ip address 1.1.1.1 255.255.255.0 > > ! > > interface Serial1 > > ip address 100.100.100.100 255.255.255.0 > > ! > > interface FastEthernet0 > > ip address 10.0.0.222 255.255.255.0 secondary > > ip address 192.168.1.1 255.255.255.0 > > ip policy route-map POLICY > > no ip directed-broadcast > > ! > > ip classless > > ip route 0.0.0.0 0.0.0.0 Serial1 > > no ip http server > > ! > > access-list 2 permit 10.0.0.0 0.0.0.255 > > route-map POLICY permit 10 > > match ip address 2 > > set ip next-hop 1.1.1.1 > > > > traffic from the network 10.0.0.0 should go through serial 0 and ISP A > > traffic from the network 192.168.1.0 should go through serial 1 and ISP B. > > > > I don't understand how is it possible, that ping from 10.0.0.0 goes > through > > serial 1 and return through serial 0. > > there is the policy on the ethernet interface. > > > > I can't run BGP :( because my router is only 2611 > > > > > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Peering over non-peering link
Comments inline. -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Cisco resources: http://r2cisco.artoo.net/ ""Howard C. Berkowitz"" <[EMAIL PROTECTED]> wrote in message news:p05001903b6c6a62de3ce@[63.216.127.100]... > >This may take some explaining, so just bear with me. Also keep in mind that > >I've been having hardly any time to read Halabi's BGP book, but will > >probably go read some after this. > > > >We're connected to a few ISPs which allow BGP peering (which I should be > >settings up sometime soon). > > I need to get clarification here. There are two meanings of the term > "peer" in the BGP context, the first being a simple establishment of > any BGP relationships, and the second being an economic relationship > of equals, where you exchange customer routes without financial > compensation. The alternative to the second is to buy transit from > an upstream ISP. Peering for cost with the larger ISPs who will transit our traffic. > >We've also got two ISPs that will not peer, nor > >exchange customer routes with us. One is a free 1.5mbit SDSL connection as > >we're one of their VARs, the other is a lame T1 that we're stuck in a 3 year > >contract for a bit more. > > > >Right now, I just use static routes to send traffic out the SDSL connection > >as the provider only has a single class B. For the T1 to a much larger > >provider with address space all over, it's just not worth it to try and do > >much with it... > > I don't understand what you mean by address space all over, or not > being worth it. Sometimes the whole motivation for BGP is to > exchange very specific and extensive address information with > adjacent AS, at the same time avoiding leaking large numbers of > irrelevant routes into the global routing system. > Well, a large amount of > > >Anyway, here is the thought: I happen to know the admins a at number of > >other ISPs that are connected to the T1 and some other sites that have SDSL > >access to the same provider as us. > > > >The catch is that of course we could set static routes out to these ISPs, > >but it's somewhat risky, especially with the SDSL as even though the > >ethernet interface it's connected to may still be up, the SDSL line itself, > >or perhaps something along the SDSL provider's backbone might be down > >between us and another of the SDSL customers, but the static routes to the > >SDSL link would stay up as the interface is still up. Same is true with the > >T1. > > I don't think there's any way you can know there is a reachability > failure in a non-directly-connected link without running a routing > protocol. In the case of an ISP, that pretty well has to be BGP. Ok, but how would BGP know which interface to go out? These equal peers would be connected to my non-default interface. > > > >Since neither of these ISPs will peer with us, could we still establish some > >routing protocol with the smaller ISPs like us that are connected off of > >them and want to transit traffic through these lesser used links. > > Why not BGP to the smaller ISPs? There might be a need to coordinate > private AS numbers. Not opposed to it, just looking for the best solution, and this is probably how we'll go to start with. > Remember that the BGP tunnels can be between loopback interfaces, so > as long as you can reach the loopback in the other AS, and > appropriately set ebgp multihop, you should be able to run a session > without the intervening ISP being aware of it. Can't promise what > the performance would be. Right, but here's what I'm missing: BGP has to know how to reach the other loopback to exchange routes with the other neighbor. I'll be able to exchange their netblocks, and then can I tag those netblocks and use a route map or something to have the router send it out a non-default interface? I mean, how will the router know what interface to go out? I'm guessing I'd set a static route out the non-default interface that will get me reachability to the BGP neighbor. As this neighbor is out a certain interface, will the router know to send traffic for BGP routes learned from that neighbor out that same interface? > >Otherwise, the netblocks we have would route traffic back through the ISPs > >they belong to or that we're announcing them with BGP on. > > > >The biggest thing is that it needs to be dynamic. If the route over the > >common single upstream ISP is down, but the connections to these ISPs are > >up, routes out to our defaults/BGP peers might still get us connected. > > > >Thoughts? Comments? Am I just nuts? > > > >-- > >Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ > >List email: [EMAIL PROTECTED] > >Homepage: http://jason.artoo.net/ > >Cisco resources: http://r2cisco.artoo.net/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violation
Re: How would you Explain it.
Most likely the ISP has a layer 3 switch that has a single port (the port out to them) configured for their subnet, and the route processor handles their routing. Essentially they're just bridging to their ISP. -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Cisco resources: http://r2cisco.artoo.net/ ""Kenneth"" <[EMAIL PROTECTED]> wrote in message 97r218$c0d$[EMAIL PROTECTED]">news:97r218$c0d$[EMAIL PROTECTED]... > I'm curious, if you're connected to a switch, then you don't have control > over your public IP Addresses then such as DNS,... or is this mostly used > for office to office links as opposed to a gateway to the internet? > > I guess the reason i'm wondering is we currently have an entire class C and > we host our own DNS, web servers, ftp,... and I'm curious as to how this > would affect our routings if we do go with such a service. > > > Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > We upgraded our T1 WAN link that cost $1500 per month to a single-mode > > fiber-optic 10-Mbps Ethernet MAN link that costs $700 per month. We just > > have a switch at our site, no router even. Seriously. Our local > > municipality has a Gigabit Ethernet single-mode fiber-optic ring running > > around town, and they lease capacity on it. The city is connected to the > > Internet via a Cisco 7200 and a Sprint T3 link. We piggy back onto that. > > > > And I'm in Southern Oregon, a supposedly rural area. It's happening in > > other towns also. Sometimes I forget how lucky we are! > > > > Priscilla > > > > At 02:28 PM 3/2/01, Howard C. Berkowitz wrote: > > > >I have a customer who wants to upgrade his 128K ISDN point to point > > > >connections to at lease a 10mbps connection. He is thinking along the > lines > > > >of LAN technologies. He idea connection is a 1gb connection. How > would go > > > >about explaining to this guy that he is out of his mind without > damaging his > > > >ego. His the IT manager and thinks he's knowledgeable about networks. > > > > > >I wouldn't say he is totally out of his mind, if he's in a geographic > > >area served by one of the bleeding edge Optical Ethernet providers. > > >Very rare so far, but there are 100 or 1000 Mbps physical facilities > > >over which the user pays for the amount of bandwidth he needs. Most > > >of the ones I'm aware of are in Europe. > > > > > >In the vast majority of locations, he is out of his mind. Assuming > > >he needs 10 Mbps, your choices include inverse multiplexed T1 and > > >ATM, fractional T3, or 10 Mbps over OC-3 facilities. I had a design > > >not too long ago where we were able to bring in some of the voice as > > >well, and found that OC-3 was quite cost-effective. It ran into a > > >7200. A 3600 is probably the lowest end router to consider. > > > > > > > > > > >btw... > > > > > > > >I've gone ahead and gotten quotes on a t1 and t3 lines. I know I can > use a > > > >2600 for the T1 connection but what is there a adapter for taking a > clear > > > >channel T3 for the 2600 or do I have to look at a 7000 series router. > > > > > > > >Thanks, > > > > > > > >Keith Townsend > > > >www.townsendconsulting.com > > >\ > > > > > >_ > > >FAQ, list archives, and subscription info: > > >http://www.groupstudy.com/list/cisco.html > > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: From CHAP to PAP
You shouldn't have to do this. By default the routers exchange their hostnames as usernames. You just need to make sure you have a 'username bleh password blehbleh' configured that matches the password the other router has configured for your router: R1 config: username R2 password blehbleh R2 config: username R1 password blehbleh I think you're better off sorting through it than forcing a username. Of course, that's a great solution when you're doing dialup to an ISP, but a poor solution for DDR with more than a single host. -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Cisco resources: http://r2cisco.artoo.net/ ""Pierre-Alex"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Thank You! > > -Original Message- > From: Sam [mailto:[EMAIL PROTECTED]] > Sent: Saturday, March 03, 2001 5:35 AM > To: Pierre-Alex > Subject: Re: From CHAP to PAP > > > use the pap "sent user-name" command ..to specify the user credentials it > will send to the remote router. > i dont remember theexact syntax.. look it up on the CD.. > i remember using it when i was practicing PAP > - Original Message - > From: "Pierre-Alex" <[EMAIL PROTECTED]> > To: "Jason Roysdon" <[EMAIL PROTECTED]> > Cc: "Cisco" <[EMAIL PROTECTED]> > Sent: Wednesday, March 01, 2000 3:19 PM > Subject: RE: From CHAP to PAP > > > > I just wanted to make sure I also knew how to configure the "simple" > > stuff... > > > > Pierre-Alex > > > > > > -Original Message- > > From: Jason Roysdon [mailto:[EMAIL PROTECTED]] > > Sent: Friday, March 02, 2001 10:48 PM > > To: '[EMAIL PROTECTED]' > > Subject: Re: From CHAP to PAP > > > > > > Shutdown the interfaces and bring them back up. Worst case, save and > reload > > each one. > > > > Why would you want to use PAP instead of CHAP? It's less secure and > leaves > > you more vulnerable as the passwords are sent in the clear. > > > > -- > > Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ > > List email: [EMAIL PROTECTED] > > Homepage: http://jason.artoo.net/ > > Cisco resources: http://r2cisco.artoo.net/ > > > > > > ""Pierre-Alex"" <[EMAIL PROTECTED]> wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > My two ISDN routers R1 and R2 are currently authenticating using Chap. > > > > > > I wanted to change the authentication to pap, so I went to both routers > > > > > > and changed "ppp authentication chap" to "ppp authentication pap" > > > > > > Now the routers won't authenticate. I cannot see what I did wrong. Can > you > > > help? > > > > > > Pierre-Alex > > > > > > > > > > > > > > > _ > > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Route-map
Your route map affects how your traffic flows outbound to the ISP. Even with BGP, there is no way to guarantee how external ISPs send to you, or, even more, how external sources not directly connected to your ISP will send It's quite common to see 30-40% of queries sent to one ISP have the associated response come back via a different ISP. >I have a big problem with the route-map command. >My network looks like : > > ISP A ISP B > | | > | | > | | > --s0--(router 2611)--- s1-- > >configuration (hypothetical): > >interface Serial0 > ip address 1.1.1.1 255.255.255.0 > ! >interface Serial1 > ip address 100.100.100.100 255.255.255.0 >! >interface FastEthernet0 > ip address 10.0.0.222 255.255.255.0 secondary > ip address 192.168.1.1 255.255.255.0 > ip policy route-map POLICY > no ip directed-broadcast >! >ip classless >ip route 0.0.0.0 0.0.0.0 Serial1 >no ip http server >! >access-list 2 permit 10.0.0.0 0.0.0.255 >route-map POLICY permit 10 > match ip address 2 > set ip next-hop 1.1.1.1 > >traffic from the network 10.0.0.0 should go through serial 0 and ISP A >traffic from the network 192.168.1.0 should go through serial 1 and ISP B. > >I don't understand how is it possible, that ping from 10.0.0.0 goes through >serial 1 and return through serial 0. >there is the policy on the ethernet interface. > >I can't run BGP :( because my router is only 2611 > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Route-map
Hi jacek, Your config regarding the route-map seems ok. On the flip side let me tell you what I think is happenning := 1) you have a default route statement throgh serial 1 = "ip route 0.0.0.0 0.0.0.0 Serial1" 2) therefore a packet generated from 10.x.x.x by default will go through S1 3) now rememeber that the packet will have a Source Ip of 10.x.x.x and a destination IP of y.y.y.y 4) when the packet is returned, it will obviously return it to 10.x.x.x 5) hence it comes BACK THROUGH S0 Test to see if the above is true, by doing an extended ping. If it is so then remove the default route statement and that should solve the problem. In any case please tell me how u went about fixing it. Santosh Koshy ""Jacek Malinowski"" <[EMAIL PROTECTED]> wrote in message 97r3bn$etj$[EMAIL PROTECTED]">news:97r3bn$etj$[EMAIL PROTECTED]... > I have a big problem with the route-map command. > My network looks like : > > ISP A ISP B > | | > | | > | | > --s0--(router 2611)--- s1-- > > configuration (hypothetical): > > interface Serial0 > ip address 1.1.1.1 255.255.255.0 > ! > interface Serial1 > ip address 100.100.100.100 255.255.255.0 > ! > interface FastEthernet0 > ip address 10.0.0.222 255.255.255.0 secondary > ip address 192.168.1.1 255.255.255.0 > ip policy route-map POLICY > no ip directed-broadcast > ! > ip classless > ip route 0.0.0.0 0.0.0.0 Serial1 > no ip http server > ! > access-list 2 permit 10.0.0.0 0.0.0.255 > route-map POLICY permit 10 > match ip address 2 > set ip next-hop 1.1.1.1 > > traffic from the network 10.0.0.0 should go through serial 0 and ISP A > traffic from the network 192.168.1.0 should go through serial 1 and ISP B. > > I don't understand how is it possible, that ping from 10.0.0.0 goes through > serial 1 and return through serial 0. > there is the policy on the ethernet interface. > > I can't run BGP :( because my router is only 2611 > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Hexadecimal numbers
TAKE A LOOK AT WWW.CATSPACE.COM [EMAIL PROTECTED] wrote: > Does anyone know a good Web site to learn about the Structure of Hex Numbers > and how to convert, from Hex to Binary, to Dec and back and forth between > the systems and IPX Addresses also. > > TIA, > > Jess > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: off topic -- min reqs for obtaining an AS?
I don't think there is any problem with that. The main this is that you have to show that you need it to be able to announce your netblock to two ISPs. Plus, at $500 up front, it's not like they're just giving them away: http://arin.net/regserv.html -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ Cisco resources: http://r2cisco.artoo.net/ ""Dropped Packet"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Is it possible to obtain an AS for one full class c, or is this just too > tiny? > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Route-map
Sorry, there is a bug in my hypothetical configuration. in set ip next-hope should be ISP A (1.1.1.2) ""Bradley J. Wilson"" <[EMAIL PROTECTED]> wrote in message 014301c0a3fa$e349f400$f402f7a5@bwilson">news:014301c0a3fa$e349f400$f402f7a5@bwilson... > This is just a guess, but how about setting the next hop in the route-map to > the IP address of ISP A? > > > - Original Message - > From: Jacek Malinowski > Newsgroups: groupstudy.cisco > To: [EMAIL PROTECTED] > Sent: Saturday, March 03, 2001 9:27 AM > Subject: Route-map > > > I have a big problem with the route-map command. > My network looks like : > > ISP A ISP B > | | > | | > | | > --s0--(router 2611)--- s1-- > > configuration (hypothetical): > > interface Serial0 > ip address 1.1.1.1 255.255.255.0 > ! > interface Serial1 > ip address 100.100.100.100 255.255.255.0 > ! > interface FastEthernet0 > ip address 10.0.0.222 255.255.255.0 secondary > ip address 192.168.1.1 255.255.255.0 > ip policy route-map POLICY > no ip directed-broadcast > ! > ip classless > ip route 0.0.0.0 0.0.0.0 Serial1 > no ip http server > ! > access-list 2 permit 10.0.0.0 0.0.0.255 > route-map POLICY permit 10 > match ip address 2 > set ip next-hop 1.1.1.1 > > traffic from the network 10.0.0.0 should go through serial 0 and ISP A > traffic from the network 192.168.1.0 should go through serial 1 and ISP B. > > I don't understand how is it possible, that ping from 10.0.0.0 goes through > serial 1 and return through serial 0. > there is the policy on the ethernet interface. > > I can't run BGP :( because my router is only 2611 > > > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Route-map
This is just a guess, but how about setting the next hop in the route-map to the IP address of ISP A? - Original Message - From: Jacek Malinowski Newsgroups: groupstudy.cisco To: [EMAIL PROTECTED] Sent: Saturday, March 03, 2001 9:27 AM Subject: Route-map I have a big problem with the route-map command. My network looks like : ISP A ISP B | | | | | | --s0--(router 2611)--- s1-- configuration (hypothetical): interface Serial0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1 ip address 100.100.100.100 255.255.255.0 ! interface FastEthernet0 ip address 10.0.0.222 255.255.255.0 secondary ip address 192.168.1.1 255.255.255.0 ip policy route-map POLICY no ip directed-broadcast ! ip classless ip route 0.0.0.0 0.0.0.0 Serial1 no ip http server ! access-list 2 permit 10.0.0.0 0.0.0.255 route-map POLICY permit 10 match ip address 2 set ip next-hop 1.1.1.1 traffic from the network 10.0.0.0 should go through serial 0 and ISP A traffic from the network 192.168.1.0 should go through serial 1 and ISP B. I don't understand how is it possible, that ping from 10.0.0.0 goes through serial 1 and return through serial 0. there is the policy on the ethernet interface. I can't run BGP :( because my router is only 2611 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame Relay Charges
That's true. All packets will be DE marked but 99% of the time, these DE marked packets will get through - that's what our SLA with them is. Their reason for this is that their network is "bleeding edge" and that they are willing to create an SLA for 0 CIR as compared to most providers who won't promise you anything. You can pay, like i said, for CIR and their SLA will guarantee 99.99% packet delivery up to CIR. Lauren Child <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Kenneth wrote: > > > > I'm not sure who the provider is but 0 CIR sounds like "Sprint-speak". > > Id imagine it would be fine if you get garuantees as to how much would > get through but a 0CIR means all our frames would be discard eligible, > so you couldnt garuntee anything getting through. It would be a bit > like shared etherenet - fine unless you experience congestion and then > its pot luck who's frames get through. You are at the mercy of the > telco's oversubscription. > > TTFN > Lauren > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Lab Swap Question
Craig Columbus wrote: > > I see a lot of requests for lab swaps. What's Cisco's policy on this? How > do they verify with both individuals that the swap is valid? Last time I looked it was the same way they did to start with - they have to have passed the written. Its not a problem if both candidates have a lab booked and just swap them round, since to book they must have passed the requirements anyway :) _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame Relay Charges
Kenneth wrote: > > I'm not sure who the provider is but 0 CIR sounds like "Sprint-speak". Id imagine it would be fine if you get garuantees as to how much would get through but a 0CIR means all our frames would be discard eligible, so you couldnt garuntee anything getting through. It would be a bit like shared etherenet - fine unless you experience congestion and then its pot luck who's frames get through. You are at the mercy of the telco's oversubscription. TTFN Lauren _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Full Duplex Hub?
To all who responded, thank you.=20 Mark - that's one (of my no doubt many) points of confusion. I know a = switch breaks up collision domains and a hub is shared media, therefore = one collision domain. I also know that the NIC set to 100 means nothing = as far as half or full duplex goes, as you can run 100 in either. I've = searched around - trying Cogent's site though I think they are out of = business - even reading and rereading Charles Spurgeon's Ethernet - The = Definitive Guide. Yeah, I know, there's reading and there's the real = world, I just wanted to check if my logic was correct. No where do I see = anything about 100 Full Duplex hubs. Switches, sure, that's their reason = for living for the most part. I have found some writings on the web = saying that with certain "proprietary" (read - not based on the Ethernet = Standard) hubs will run at 100 Full Duplex. What I haven't found is WHY = or HOW they can do this.=20 Gene - yes that makes sense, but how do the NIC's decide to run half = duplex if I've forced them to full? (I avoid auto-negotiate like the = plague)?=20 David - Exactly my understanding. Collision detection is turned off at = full duplex, so how in the hell is this thing working? I suspect the = answer lies in the hardware specs (clever, aren't I?) but since I can't = find them I'm bumbling around blindly. Anyway, thanks for all the responses, it helps to no I wasn't entirely = crazy...regarding this at least. Thanks again Patrick "Mark Holloway" <[EMAIL PROTECTED]> wrote in message = 97poso$m4e$[EMAIL PROTECTED]">news:97poso$m4e$[EMAIL PROTECTED]... > Well, a full duplex hub is typically called a switch. Just because = the NICs > are at 100 Full doesn't mean anything. Many times devices can be set = for > auto negotiate and not configure properly. You can force a setting on = a NIC > and even if it wrong, it will still work, but there may be errors and > retransmissions will occur. If you only have two devices in this hub = and > they are only talking to each other, there may not be any collisions. >=20 > Regards, > Mark >=20 > ""Patrick McAllister"" <[EMAIL PROTECTED]> wrote in message > 007201c0a383$7e2ff7d0$6401a8c0@cartman">news:007201c0a383$7e2ff7d0$6401a8c0@cartman... > > I know this isn't a Cisco question per se, and I apologize in = advance.=3D20 > > > > Is there such a thing as a full duplex 100BaseTx hub or repeater? I = =3D > > thought all hubs/repeaters had to run in half duplex. > > > > Here's the scenario, of sorts. I have a Cogent 1200 100Base TX Class = I =3D > > Repeater. I hook two PC's up to them and start transferring files. = =3D > > Everything works swimmingly. I look at the config after I'm done and = =3D > > both NIC's in the PC's are set to full duplex. There is (of course) = no =3D > > setting on the Cogent, and there is (of course) a collision light, = but =3D > > it never flashed during the transfer. I know I'm not the sharpest = knife =3D > > in the drawer, I accept that. But have I been laboring under a =3D > > misconception all this time?=3D20 > > > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to = [EMAIL PROTECTED] > > >=20 >=20 > _ > FAQ, list archives, and subscription info: = http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Passed CCIE Written
Congratulations Chad. Jim ""Chad Humphries"" <[EMAIL PROTECTED]> wrote in message 97pptf$oui$[EMAIL PROTECTED]">news:97pptf$oui$[EMAIL PROTECTED]... > Took R&S written for the 1st time today and passed with 84%. Thanks to > everyone that post great questions and answers in this group. Seems like I > learn something new every week or at least see other viewpoints. Best of > luck to everyone! > On to the LAB! > > Chad Humphries > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CID beta
I think have to wait till 15 Mar..exactly 12 weeks!!! does anyone passed on past experience how long will a beta exam result be out? Fomes Iain <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Anyone got their results yet? > * > DISCLAIMER: The information contained in this e-mail may be confidential > and is intended solely for the use of the named addressee. Access, copying > or re-use of the e-mail or any information contained therein by any other > person is not authorized. If you are not the intended recipient please > notify us immediately by returning the e-mail to the originator. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switch Problem
2900's have a problem if you leave a consol cable plugged into them as well. It will automatically reboot and is a known bug. Jeff ""Stuart J Pittwood"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi, > > Many of my users have been reporting network connectivity disapearing and > comming back about a min later. > > While looking through the logs of one switch (a 2924M-CL-EN) I noticed it > had been rebooted recently. > > What would make a switch reboot itself? The switch isn't anywhere near > capacity (according to the scale on the front). > > Any help greatly appreciated > __ > Stuart J Pittwood, CCNA > [EMAIL PROTECTED] > http://www.stuartpittwood.net > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Off-Topic: Grad School (again?)
Some people enjoy the educational experience, and that's an adequate motivation. If not, the planning issue is "what would your dream job be?" >I know Grad School has been discussed in the archives "as opposed" to >CCIE but I have a different question...what about "in addition". > >Opinions, maybe a few pointers, and some hindsight from people thats been >in this longer than I have are what I am looking for. My situation is >this; I have a BS in MIS (spring 99), I've passed np and ie written (last >year), attempted the lab once and was only a few points short of >troubleshooting--and will be trying it again in the very near future. >About 5 years in the field overall and 2 solid years of cisco and related >wan stuff. Been in computers in general for as long as I can remember so I >would call it more than 15 years. > >Call me crazy, but I pretty much enjoyed college and had always seen myself >going past the usual BS (woot, pun)--and get a graduate degree. I am >thinking MBA, but I can honestly say I'm not overjoyed in being >management--but I realize that will be a reality. MBA doesn't strictly mean that you will manage people. With an MIS concentration, it can deal with requirements analysis, business process analysis, etc. The sorts of things that MUST be understood before a successful technical solution can be defined. > >Like I mentioned, I know there has been lots of debate on CCIE vs MS.. my >question is what about CCIE _and_ MS. In a nutshell is it worth getting >the MS as well? > >Yes, of course, the conventional wisdom would say if you got the shot, then >go for it (which I will do reguardless). The hypothetical question is how >much of a difference would a ccie with a masters make than one without? Again, what are you aiming for? Let me turn it around a bit. If you were going for a job in networking product development, a MS in computer science would be the key credential at entry level, but many hiring managers would look favorably on the CCIE (especially with some field experience), as an indication you can also understand the operational aspects. I work with some excellent programmers that write fine routing protocol code, but don't have any real idea how the code will be used. It's more complex, I think, to picture how a relevant* MS would help someone going into implementation and support. If the hiring organization isn't all that technical, they may simply seize on the CCIE as a credential "because Cisco said it is" and not realize the utility of CS background, quantitative methods, etc., in what the CCIE does. A more technical employer would. Without getting into the old folks discussion, I'm not a good example. I don't have a graduate degree or a CCIE, and there's no particular job-related reason to have them. Ironically, the general assumption is that people in my current job (network technology R&D beyond the immediate product generation) probably have a PhD. My demonstrated Cisco experience is valued, but my resume is more important than any certification. I'd sort of like to get an advanced degree only because I think I'd enjoy doing some academic teaching, but I find it difficult to justify the time. * relevance is in the eye of the beholder. Courses I took in psychological operations and propaganda have been most useful in corporate America. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Route-map
I have a big problem with the route-map command. My network looks like : ISP A ISP B | | | | | | --s0--(router 2611)--- s1-- configuration (hypothetical): interface Serial0 ip address 1.1.1.1 255.255.255.0 ! interface Serial1 ip address 100.100.100.100 255.255.255.0 ! interface FastEthernet0 ip address 10.0.0.222 255.255.255.0 secondary ip address 192.168.1.1 255.255.255.0 ip policy route-map POLICY no ip directed-broadcast ! ip classless ip route 0.0.0.0 0.0.0.0 Serial1 no ip http server ! access-list 2 permit 10.0.0.0 0.0.0.255 route-map POLICY permit 10 match ip address 2 set ip next-hop 1.1.1.1 traffic from the network 10.0.0.0 should go through serial 0 and ISP A traffic from the network 192.168.1.0 should go through serial 1 and ISP B. I don't understand how is it possible, that ping from 10.0.0.0 goes through serial 1 and return through serial 0. there is the policy on the ethernet interface. I can't run BGP :( because my router is only 2611 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: How would you Explain it.
I'm curious, if you're connected to a switch, then you don't have control over your public IP Addresses then such as DNS,... or is this mostly used for office to office links as opposed to a gateway to the internet? I guess the reason i'm wondering is we currently have an entire class C and we host our own DNS, web servers, ftp,... and I'm curious as to how this would affect our routings if we do go with such a service. Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > We upgraded our T1 WAN link that cost $1500 per month to a single-mode > fiber-optic 10-Mbps Ethernet MAN link that costs $700 per month. We just > have a switch at our site, no router even. Seriously. Our local > municipality has a Gigabit Ethernet single-mode fiber-optic ring running > around town, and they lease capacity on it. The city is connected to the > Internet via a Cisco 7200 and a Sprint T3 link. We piggy back onto that. > > And I'm in Southern Oregon, a supposedly rural area. It's happening in > other towns also. Sometimes I forget how lucky we are! > > Priscilla > > At 02:28 PM 3/2/01, Howard C. Berkowitz wrote: > > >I have a customer who wants to upgrade his 128K ISDN point to point > > >connections to at lease a 10mbps connection. He is thinking along the lines > > >of LAN technologies. He idea connection is a 1gb connection. How would go > > >about explaining to this guy that he is out of his mind without damaging his > > >ego. His the IT manager and thinks he's knowledgeable about networks. > > > >I wouldn't say he is totally out of his mind, if he's in a geographic > >area served by one of the bleeding edge Optical Ethernet providers. > >Very rare so far, but there are 100 or 1000 Mbps physical facilities > >over which the user pays for the amount of bandwidth he needs. Most > >of the ones I'm aware of are in Europe. > > > >In the vast majority of locations, he is out of his mind. Assuming > >he needs 10 Mbps, your choices include inverse multiplexed T1 and > >ATM, fractional T3, or 10 Mbps over OC-3 facilities. I had a design > >not too long ago where we were able to bring in some of the voice as > >well, and found that OC-3 was quite cost-effective. It ran into a > >7200. A 3600 is probably the lowest end router to consider. > > > > > > > >btw... > > > > > >I've gone ahead and gotten quotes on a t1 and t3 lines. I know I can use a > > >2600 for the T1 connection but what is there a adapter for taking a clear > > >channel T3 for the 2600 or do I have to look at a 7000 series router. > > > > > >Thanks, > > > > > >Keith Townsend > > >www.townsendconsulting.com > >\ > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame Relay Charges
I'm not sure who the provider is but 0 CIR sounds like "Sprint-speak". Most service providers won't allow or recommends against 0 CIR but on the other hand, Sprint pushes it. We are currently using 0 CIR and I think the quality has been good and we haven't had a whole lot of dropped packets. In fact, I think they still guarantee 99% delivery up to port speed which is pretty good specially compared to most providers 99.9% delivery up to CIR and no guarantee beyond that. "Nabil Fares" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Greetings all, > > Can you guys shed some light on how FR providers base their charges. How > they charge when going above CIR (etc...)? > > also, if I have site with network access between 8-5, is it worth risking a > zero CIR? > > We had a meeting with an account rep for a FR provider, he kept pressing on > 0 CIR. This is a new trend? > > Thanks, > > Nabil > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Peering over non-peering link
>This may take some explaining, so just bear with me. Also keep in mind that >I've been having hardly any time to read Halabi's BGP book, but will >probably go read some after this. > >We're connected to a few ISPs which allow BGP peering (which I should be >settings up sometime soon). I need to get clarification here. There are two meanings of the term "peer" in the BGP context, the first being a simple establishment of any BGP relationships, and the second being an economic relationship of equals, where you exchange customer routes without financial compensation. The alternative to the second is to buy transit from an upstream ISP. >We've also got two ISPs that will not peer, nor >exchange customer routes with us. One is a free 1.5mbit SDSL connection as >we're one of their VARs, the other is a lame T1 that we're stuck in a 3 year >contract for a bit more. > >Right now, I just use static routes to send traffic out the SDSL connection >as the provider only has a single class B. For the T1 to a much larger >provider with address space all over, it's just not worth it to try and do >much with it... I don't understand what you mean by address space all over, or not being worth it. Sometimes the whole motivation for BGP is to exchange very specific and extensive address information with adjacent AS, at the same time avoiding leaking large numbers of irrelevant routes into the global routing system. > >Anyway, here is the thought: I happen to know the admins a at number of >other ISPs that are connected to the T1 and some other sites that have SDSL >access to the same provider as us. > >The catch is that of course we could set static routes out to these ISPs, >but it's somewhat risky, especially with the SDSL as even though the >ethernet interface it's connected to may still be up, the SDSL line itself, >or perhaps something along the SDSL provider's backbone might be down >between us and another of the SDSL customers, but the static routes to the >SDSL link would stay up as the interface is still up. Same is true with the >T1. I don't think there's any way you can know there is a reachability failure in a non-directly-connected link without running a routing protocol. In the case of an ISP, that pretty well has to be BGP. > >Since neither of these ISPs will peer with us, could we still establish some >routing protocol with the smaller ISPs like us that are connected off of >them and want to transit traffic through these lesser used links. Why not BGP to the smaller ISPs? There might be a need to coordinate private AS numbers. Remember that the BGP tunnels can be between loopback interfaces, so as long as you can reach the loopback in the other AS, and appropriately set ebgp multihop, you should be able to run a session without the intervening ISP being aware of it. Can't promise what the performance would be. >Otherwise, the netblocks we have would route traffic back through the ISPs >they belong to or that we're announcing them with BGP on. > >The biggest thing is that it needs to be dynamic. If the route over the >common single upstream ISP is down, but the connections to these ISPs are >up, routes out to our defaults/BGP peers might still get us connected. > >Thoughts? Comments? Am I just nuts? > >-- >Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ >List email: [EMAIL PROTECTED] >Homepage: http://jason.artoo.net/ >Cisco resources: http://r2cisco.artoo.net/ > > > > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: off topic -- min reqs for obtaining an AS?
>Is it possible to obtain an AS for one full class c, or is this just too >tiny? You can get the AS number with proper justification, although there is no guarantee that this prefix will propagate through the Internet as a whole and the prefix will be reachable. In general, you would have to demonstrate to the registry: -- you plan to multihome -- you can demonstrate contracts with at least two upstream providers you may be asked to document your routing policy, which, in any case, is a good idea. ARIN recommends doing so, RIPE NCC requires it. Your design may be scrutinized, and questions are likely to be asked why this can't be done with provider-assigned address space. The registry might evaluate whether your links are fast enough to support the number of routes you plan to receive. Hint: to get into the right mindset for such a request, be sure you understand you have a /24. From the perspective of global routing, there is no such thing as a class A, B, or C. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2 ISP's
I've asked a fair number of questions here, which would only be a starting point if I were building a solution to this problem -- even though I don't fully understand the problem yet. The key message I'm trying to convey is that the first task in developing a solution is to translate customer wants/perceptions into specific technical requirements (e.g., SLAs, routing policies, and the like). Selecting the specific technology is the second task, and selecting platforms and configuring them follows. >See my dear this solution to done for a customer and not for the ISP. One >of the Software development firm (MY friend works there and i want to help >him out) they have two internet link from different internet service >provider. earlier they were using 2 router for differnet link but now they >want to go for only one router (3640). Why? If they had two, clearly that is more reliable. Is it that the 3640 will have more power than the previous two, which might be a perfectly good reason. >What can be done for this. In normal >condition they use one internet link always to upload their software to >some web server and another link is used internet browsing. Now when any >one link goes down how everything will function normally ? As you have stated the problem., things will NOT function normally if one link goes down. I might guess that in the event of one failure, you want all the traffic to move to the other link, but you don't explicitly say that and assumptions are dangerous. If both types of traffic are going over the same link, is some sort of traffic conditioning -- rate limiting, queueing, etc., appropriate? What sort of availability and performance do they need for each services. What about other services? Is the uploading FTP, HTTP, RPC, or what? Do telnet, FTP downloads, etc., qualify as web browsing, or is web browsing limited to HTTP? > why i am asking >this is there arevalid ip address which belongs to both the ISP's. >And any >one ISP goes down what about routing of that perticular ip address stream. If the address spaces are much smaller than /24, there may not be a routing based solution. Any routing solution will require coordination among the customer and the two ISPs. It may be appropriate to look at various NAT, tunneling, and DNS techniques as well. There's just not enough information to know. > Hope this helps you to give some more clear cut solution. > >Regards >Atul \ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: From CHAP to PAP
Thank You! -Original Message- From: Sam [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 03, 2001 5:35 AM To: Pierre-Alex Subject: Re: From CHAP to PAP use the pap "sent user-name" command ..to specify the user credentials it will send to the remote router. i dont remember theexact syntax.. look it up on the CD.. i remember using it when i was practicing PAP - Original Message - From: "Pierre-Alex" <[EMAIL PROTECTED]> To: "Jason Roysdon" <[EMAIL PROTECTED]> Cc: "Cisco" <[EMAIL PROTECTED]> Sent: Wednesday, March 01, 2000 3:19 PM Subject: RE: From CHAP to PAP > I just wanted to make sure I also knew how to configure the "simple" > stuff... > > Pierre-Alex > > > -Original Message- > From: Jason Roysdon [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 02, 2001 10:48 PM > To: '[EMAIL PROTECTED]' > Subject: Re: From CHAP to PAP > > > Shutdown the interfaces and bring them back up. Worst case, save and reload > each one. > > Why would you want to use PAP instead of CHAP? It's less secure and leaves > you more vulnerable as the passwords are sent in the clear. > > -- > Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ > List email: [EMAIL PROTECTED] > Homepage: http://jason.artoo.net/ > Cisco resources: http://r2cisco.artoo.net/ > > > ""Pierre-Alex"" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > My two ISDN routers R1 and R2 are currently authenticating using Chap. > > > > I wanted to change the authentication to pap, so I went to both routers > > > > and changed "ppp authentication chap" to "ppp authentication pap" > > > > Now the routers won't authenticate. I cannot see what I did wrong. Can you > > help? > > > > Pierre-Alex > > > > > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
help
I am going to connect a cable from the telco's chrono directly to the PRI module on the 3640. I need the pinouts for the cable from the chrono to the port.I am using cat5 cable. This is what I have found but I am unsure whether it is correct to use as I don't want to blow the module port. Pinouts Telco Chrono PRI Module DB15 1 TX Tip>9 TX Tip 2 TX Ring >2 TX Ring 4 RX Tip>8 RX Tip 5 RX Ring >15 RX Ring I think this would be 120-Ohm balanced connection. Thanks _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: off topic -- min reqs for obtaining an AS?
According to ARIN http://www.arin.net/regserv/asnguide.htm the minimum requirements are unique routing policy and being a multihomed site. I don't see any requirements other than this regarding ASNs. If there is, they have it burried pretty deep. "Dropped Packet" wrote in message ... Is it possible to obtain an AS for one full class c, or is this just too tiny? _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Off-Topic: Grad School (again?)
I know Grad School has been discussed in the archives "as opposed" to CCIE but I have a different question...what about "in addition". Opinions, maybe a few pointers, and some hindsight from people thats been in this longer than I have are what I am looking for. My situation is this; I have a BS in MIS (spring 99), I've passed np and ie written (last year), attempted the lab once and was only a few points short of troubleshooting--and will be trying it again in the very near future. About 5 years in the field overall and 2 solid years of cisco and related wan stuff. Been in computers in general for as long as I can remember so I would call it more than 15 years. Call me crazy, but I pretty much enjoyed college and had always seen myself going past the usual BS (woot, pun)--and get a graduate degree. I am thinking MBA, but I can honestly say I'm not overjoyed in being management--but I realize that will be a reality. Like I mentioned, I know there has been lots of debate on CCIE vs MS.. my question is what about CCIE _and_ MS. In a nutshell is it worth getting the MS as well? Yes, of course, the conventional wisdom would say if you got the shot, then go for it (which I will do reguardless). The hypothetical question is how much of a difference would a ccie with a masters make than one without? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
followup to ASN off-topic
The network will be multihomed to 2 (possibly 3) ISPs. _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
