a lot of transcender/Boson/CCIE/CCNP/Solaris Admin/Checkpoint [7:16489]
A lot of studying quesitons/ material to trade. Transcender/Boson/MS Press/ Sybex/ New Rider/Self Test/Crambible/ChinaIT/Measureup/MCSE2BE. Write to [EMAIL PROTECTED] for detail. Any exams, CCNP/CCIE/MCSE/CCIE/Solaris Admin/ Checkpoint, Any presswelcome! YOU MUST HAVE STUDY MATERIAL ON HAND TO TRADE WITH. OTHERWISE, PLS DON'T WRITE TO EMAIL. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16489&t=16489 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
help--needed hyperterminal [7:16490]
hi i earlier posted message where i said my 2900XL switch rebooted while trying to use hyperterminal ,i got many replies saying this is a known bug in Version 12.0(5)XP.but i tried locating this thing on cisco site but i am unable to do so.Any URL's and anything in this regard will be great help. Regards Arun Sharma Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16490&t=16490 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE R/S Lab lead time in Brussels [7:16491]
Does anyone know what's the current lead time for booking the CCIE R/S lab in Brussels? TIA Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16491&t=16491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: lab equipment [7:14648]
I got a quote from Emutel. It's about 2k for the solo and 10k for the pri model. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, August 02, 2001 7:21 AM To: [EMAIL PROTECTED] Subject: Re: lab equipment [7:14648] I would trade the PIX for a 1010 Lightstream and get a couple of 2504's. This will give you SDN and Token Ring. Of course, if you really want to use the ISDN, you're going to have to invest in an emulator. Teltone's are nice, but I have an Emutel Solo, which is cheaper and more configurable. My .02c, Rob H CCNP,CCDP,MCSE Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16492&t=14648 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: how to upgrade flash [7:16406]
xmodem protocol.. but it takes time to upload.. ""george gittins"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > is their a way to upgrade flash through console? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16493&t=16406 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
traceroute [7:16494]
hi , how can we quit in between when router is tracerouteing any destination from traceroute or cancel the traceroute thanx kaushlender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16494&t=16494 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: traceroute [7:16494]
ctrl+shift+6 then press x Best Regards Have A Good Day!! *** Farhan Ahmed* MCSE+I, MCP Win2k, CCDA, CCNA, CSE Network Engineer Mideast Data Systems Abudhabi Uae. *** Privileged/Confidential Information may be contained in this message or Attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, Conclusions and other information in this message that do not relate to the Official business of this company shall be understood as neither given nor Endorsed by it. > -Original Message- > From: kaushalenders [mailto:[EMAIL PROTECTED]] > Sent: Sunday, August 19, 2001 3:45 PM > To: [EMAIL PROTECTED] > Subject: traceroute [7:16494] > > > hi , > how can we quit in between when router is tracerouteing any > destination from > traceroute or cancel the traceroute > > thanx > kaushlender [GroupStudy.com removed an attachment of type application/octet-stream which had a name of Farhan Ahmed.vcf] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16495&t=16494 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: traceroute [7:16494]
Hold the Cntrl,shift, and bang on the 6 key a few times Tony M. - Original Message - From: "kaushalenders" To: Sent: Sunday, August 19, 2001 4:45 AM Subject: traceroute [7:16494] > hi , > how can we quit in between when router is tracerouteing any destination from > traceroute or cancel the traceroute > > thanx > kaushlender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16496&t=16494 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Avoiding IP conflicts in a MULTI-VLAN environment [7:16470]
""Kevin Wigle"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > It depends on the kind of environment you have and how much control you > have - that is to say, do people who break the rules get in trouble or just > get their hands slapped? (or nothing) > > Anyway, DHCP will definitely fix this problem but only if users don't change > the IP configuration on their PCs from DHCP to static. We use DHCP at work and have been having trouble with users changing the IP addy's to static. I logged into the router once to see who had the ARP entry. It changed back an fourth. The user would get the IP conflict error every time the ARP entry changed or they got leased an IP addy by the DHCP server with another user already using it. I am not aware of any way for the router to authenticate the ARP entry with the DHCP server so the users are kind of stuck playing ARP pong till we reconfigure the offenders box for DHCP or the DHCP server gives the user a new IP addy. Sometimes the users will just do a release all and change out the NIC (or static a new MAC) to get a new IP addy from the DHCP server. This has become more persistant as of recent and we are trying to come up with a way to "put the smack down". Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16497&t=16470 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: traceroute [7:16494]
Press Shift-Ctrl and 6 , two times. > hi , > how can we quit in between when router is tracerouteing any destination from > traceroute or cancel the traceroute > > thanx > kaushlender Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16498&t=16494 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Avoiding IP conflicts in a MULTI-VLAN environment [7:16470]
""John Smith"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > ""Kevin Wigle"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > It depends on the kind of environment you have and how much control you > > have - that is to say, do people who break the rules get in trouble or > just > > get their hands slapped? (or nothing) > > > > Anyway, DHCP will definitely fix this problem but only if users don't > change > > the IP configuration on their PCs from DHCP to static. > > > We use DHCP at work and have been having trouble with users changing the IP > addy's to static. I logged into the router once to see who had the ARP > entry. It changed back an fourth. The user would get the IP conflict error > every time the ARP entry changed or they got leased an IP addy by the DHCP > server with another user already using it. I am not aware of any way for the > router to authenticate the ARP entry with the DHCP server so the users are > kind of stuck playing ARP pong till we reconfigure the offenders box for > DHCP or the DHCP server gives the user a new IP addy. Sometimes the users > will just do a release all and change out the NIC (or static a new MAC) to > get a new IP addy from the DHCP server. This has become more persistant as > of recent and we are trying to come up with a way to "put the smack down". > PS. the firmware on some SOHO routers is also known to cause this because they improperly implement DHCP ie. they keep the lease longer than it's given to them by the DHCP server without renewing it at t1 or t2. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16499&t=16470 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: traceroute [7:16494]
While you are doing reverse telnet, then the command below will send you back to the "terminal_server" instead of stopping the traceroute command. > ctrl+shift+6 > then press x > > Best Regards > > Have A Good Day!! > > *** > Farhan Ahmed* > MCSE+I, MCP Win2k, CCDA, CCNA, CSE > Network Engineer > Mideast Data Systems Abudhabi Uae. > > *** Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16500&t=16494 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: how to upgrade flash [7:16406]
Is there a procedure written down for this? I would be very interested. Dom Marino ""Tonton Rabena"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > xmodem protocol.. but it takes time to upload.. > > ""george gittins"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > is their a way to upgrade flash through console? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16501&t=16406 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: how to upgrade flash [7:16406]
hmm, quick look on cco for " download image xmodem " came up with http://www.cisco.com/warp/public/701/59.html Symon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dominick Marino Sent: 19 August 2001 16:16 To: [EMAIL PROTECTED] Subject: Re: how to upgrade flash [7:16406] Is there a procedure written down for this? I would be very interested. Dom Marino ""Tonton Rabena"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > xmodem protocol.. but it takes time to upload.. > > ""george gittins"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > is their a way to upgrade flash through console? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16502&t=16406 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: show ip route connected!! [7:11219]
Is that correct? I thought that a ping to a router's own interface would be moved across from the output queue to the input queue on that interface - if the stack is written properly which many ATM ones aren't. I don't think the packet will appear out-with the router. Similarly a broadcast has to be sent to the all-hosts address (ethernet FF:FF:FF:FF:FF:FF) and /also/ copied across to the input queue. I remember reading this in one of Douglas Comer's excellent books: I hope I remember correctly. Anyone care to comment? Jim ""John Neiberger"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Show ip route connected will show any networks that are directly connected > to a local interface. If you can't ping the interface, then you have a > problem either locally or on the remote side of the link. > > When you ping a local interface, the packet actually traverses the link, > then back, then across again, and then back again. It's crazy, but that's > the way it works. If you're experiencing any sort of line issues or if > things aren't configured correctly, pings to a local interface may fail. > > HTH, > John > > | Hi all > | We have eigrp network. > | When I do "sh ip rou co" --- what ip address are those under "C"? it says > it > | is directly connected. Then why couldn't I ping? > | It is not local router's interface address, or remote router's serial > | interface. Then what ip address ? > | Thanks > | JP > | > | > | > | > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16503&t=11219 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Difficulty - CCIE written or CCNP [7:16504]
Would anyone who has taken the CCNP and the CCIE written exam care to advise which is the hardest? I hear the CCIE written exam is very basic. It certainly covers some simple topics but would a candidate need to know networking to CCNP level or higher to achieve thes pass mark? Put another way, how would you compare two people, one with CCNP and not CCIE written, the other with the CCIE written and not CCNP? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16504&t=16504 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Hello, this is for you [7:16505]
Work From Home, FREELANCE REPRESENTATIVES NEEDED NOW. New company offering an Advanced Health Plan. First of its kind, actually PAYS YOU TO STAY WELL. Cancer and Heart Disease are taking the lives of more people than ever before. 2 in every 4 deaths are caused by Heart Disease. 14 months ago, the American Cancer Society stated that 1 in every 4 deaths was attributed to Cancer. In the late months of 2000, this figure changed to 1 in every 3. It is now stated that 1 in every 2.5 people in the US will die of some form of Cancer. Major Scientific Breakthrough now available. An incredible opportunity for those wishing to work from home. Health insurance pays us when we are sick, life insurance when we die. This is the first company that will PAY YOU TO STAY WELL. One Expert is currently raising an additional Quarter of a Billion Dollars for expansion. The time is NOW for you to be a part of this #1 INVESTMENT. For your Free Information send an e-mail to: [EMAIL PROTECTED] with More Info in the Subject Line and your name and phone# starting with area code in the body of the email. This message is in full compliance with U.S. Federal requirements for commercial email under bill S.1618 Title lll, Section 301, Paragraph (a)(2)(C) passed by the 105th U.S. Congress and cannot be considered SPAM since it includes a remove mechanism. Further transmissions by the sender may be stopped at no cost to you by replying to the email address [EMAIL PROTECTED] and placing remove in the subject line. You have received this email by either requesting more information on one of our opportunities or someone may have used your email address. If you received this email in error, please accept our apologies. (Any attempts to disrupt the removal email address etc., will not allow us to be able to retrieve and process the remove requests.) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16505&t=16505 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Dial-out Software for MICA Modems [7:16424]
Hi It was actually called dialout. It's no longer supported by Cisco, although they do recommend some third party software, we were using it at work a few months ago to test for a customer. I don't have them at home. If you're still looking, drop me an e-mail and I'll dig it out when I get back to work. Regards, Gaz ""[EMAIL PROTECTED]"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Cisco had dial a dial out utility that would let you set up a virtual com > port on your workstations and dial out on the MICA modems on your router. I > have been searching the Cisco web site and I've been unable to locate it. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16506&t=16424 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ip default-network [7:16507]
Would anybody be so kind to explain me how the hell is this command working? The more I read about it the more I get confused. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16507&t=16507 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ip default-network [7:16507]
In a message dated 8/19/01 4:37:05 PM Central Daylight Time, [EMAIL PROTECTED] writes: << Subj: ip default-network [7:16507] Date: 8/19/01 4:37:05 PM Central Daylight Time From: [EMAIL PROTECTED] (richard dumoulin) Sender:[EMAIL PROTECTED] Reply-to: [EMAIL PROTECTED] (richard dumoulin) To:[EMAIL PROTECTED] Rich, Try this brief lab example I got from the CCO. I think this will clear it up for you: ip default-gateway The ip default-gateway command differs from the other two commands in that it should only be used when ip routing is disabled on the Cisco router. For instance, if the router is a host in the IP world, you can use this command to define a default gateway for it. You might also use this command when your low end Cisco router is in boot mode in order to TFTP a Cisco IOS.Software image to the router. In boot mode, the router doesn't have ip routing enabled. ip default-network Unlike the ip default-gateway command, you can use ip default-network when ip routing is enabled on the Cisco router. When you configure ip default-network the router considers routes to that network for installation as the gateway of last resort on the router. For every network configured with ip default-network, if a router has a route to that network, that route is flagged as a candidate default route. Let's look at the following routing table taken from a Cisco router: 2513#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default Gateway of last resort is not set 161.44.0.0 255.255.255.0 is subnetted, 1 subnets C 161.44.192.0 is directly connected, Ethernet0 S198.10.1.0 [1/0] via 161.44.192.2 131.108.0.0 255.255.255.0 is subnetted, 1 subnets C 131.108.99.0 is directly connected, TokenRing0 Note the static route to 198.10.1.0 via 161.44.192.2 and that the gateway of last resort isn't set. If we configure ip default-network 198.10.1.0, the routing table changes to the following: 2513#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default Gateway of last resort is 161.44.192.2 to network 198.10.1.0 161.44.0.0 255.255.255.0 is subnetted, 1 subnets C 161.44.192.0 is directly connected, Ethernet0 S 161.44.0.0 255.255.0.0 [1/0] via 161.44.192.0 S*198.10.1.0 [1/0] via 161.44.192.2 131.108.0.0 255.255.255.0 is subnetted, 1 subnets C 131.108.99.0 is directly connected, TokenRing0 2513#show ip protocols 2513# We can see the gateway of last resort has now been set as 161.44.192.2. This result is independent of any routing protocol, as shown by the show ip protocols command at the bottom of the output. We can add another candidate default route simply by configuring another instance of ip default-network: 2513#config terminal Enter configuration commands, one per line. End with CNTL/Z. 2513(config)#ip route 171.70.24.0 255.255.255.0 131.108.99.2 2513(config)#ip default-network 171.70.24.0 2513(config)#^Z 2513#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default Gateway of last resort is 161.44.192.2 to network 198.10.1.0 161.44.0.0 255.255.255.0 is subnetted, 1 subnets C161.44.192.0 is directly connected, Ethernet0 S161.44.0.0 255.255.0.0 [1/0] via 161.44.192.0 S* 198.10.1.0 [1/0] via 161.44.192.2 171.70.0.0 is variably subnetted, 2 subnets, 2 masks S171.70.0.0 255.255.0.0 [1/0] via 171.70.24.0 S171.70.24.0 255.255.255.0 [1/0] via 131.108.99.2 131.108.0.0 255.255.255.0 is subnetted, 1 subnets C131.108.99.0 is directly connected, TokenRing0 Flagging a Default Network Note: The ip default-network command is classful, which means if the router has a route to the subnet indicated by this command, it installs the route to the major net. At this point neither network has been flagged as the default network. The ip default-network command must be issued again, using the major net, in order to flag the candidate default route. 2513#config terminal Enter configuration commands, one per line. End with CNTL/Z. 2513(config)#ip default-network 171.70.0.0 2513(config)#^Z 2513#show ip route Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF
Re: ip default-network [7:16507]
Hi Richard, Some good CCO links have already been posted. I just wanted to add a quick point. This command is useful as a tool for providing a semi dynamic default route. For example, if you are connected to two upstream networks which both offer you routes toward a destination, say 10/8 for example, you can use this command to ensure that your routers chose a default route toward the most functional of the two. For example, with normal static routes, the route remains active so long as the immediate connectivity toward the next hop is alive and well. Hence, should the next hop router have a failure on one of its' upstream links, or should any other upstream routers beyond it fail, you routers will still consider the route active and thus send traffic toward a likely black hole. By using ip default network pointed towards 10/8, which you know is an upstream network, you can protect yourself against any failures that deter you from reaching that network since those failures will cause the faulty network to cease advertising 10/8 to you. In my example, if the active next-hop for 10/8 becomes unable to deliver traffic there, your routers will dynamic change default toward your alternate path. Hope that helps some :) Pete *** REPLY SEPARATOR *** On 8/19/2001 at 5:36 PM richard dumoulin wrote: >Would anybody be so kind to explain me how the hell is this command >working? >The more I read about it the more I get confused. > >Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16509&t=16507 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Certificationzone OSPF paper [7:16510]
Hi guys, I am not sure to have found a contradiction in the OSPF paper from Certificationzone. At first, Howard writes ". The BDR hears updates being sent to the DR and starts a timer. If the DR does not respond before the BDR timer expires, the BDR will send out the update that the DR should have sent. Under these circumstances, however, the BDR does not take over as DR." But pages later he says "OSPF updates are actually sent to a multicast address that includes both the DR and BDR. When the BDR hears an update sent to the DR, it starts a timer. If the DR does not respond before the BDR's timer expires, the BDR will assume that the DR is dead and will promote itself to DR." Do you understand my confusion ? Cheers. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16510&t=16510 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco Secure ACS for NT/2000 [7:16318]
So far the password changing issue is really the only limitation of ACS that we found, but if you use it to intersect with the same database that your desktops login to (ADS for example) then your password changes will be taken care of. >From: "Chris Clark" >Reply-To: "Chris Clark" >To: [EMAIL PROTECTED] >Subject: Re: Cisco Secure ACS for NT/2000 [7:16318] >Date: Sat, 18 Aug 2001 22:53:29 -0400 > >Depends on what you are using it for. It can do a lot of different things. >The main gotcha is that it can not handle password changes very well. > > >""Stepp Harless"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Does anyone have any experience good or bad with Cisco Secure Access >Control > > for Windows NT/2000? Are there any gottchas that I need to be aware of? >I >am > > trying to get approval to purchase this product but managment wants me >to > > get opinions from someone else besides Cisco. > > > > Thanks, > > > > > > Harles _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16511&t=16318 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Avoiding IP conflicts in a MULTI-VLAN environment [7:16470]
as long as there are others that have the ability to connect workstations or servers to your network, the potential is there for address conflicts. we eliminate these by the users requesting addresses and to have server (or workstation) patched into the network. it is more work initially, but in the long run creates audit trails and prevents unauthorized ip address assignments. good luck. >From: "Kevin Wigle" >Reply-To: "Kevin Wigle" >To: [EMAIL PROTECTED] >Subject: Re: Avoiding IP conflicts in a MULTI-VLAN environment [7:16470] >Date: Sat, 18 Aug 2001 17:26:36 -0400 > >It depends on the kind of environment you have and how much control you >have - that is to say, do people who break the rules get in trouble or just >get their hands slapped? (or nothing) > >Anyway, DHCP will definitely fix this problem but only if users don't >change >the IP configuration on their PCs from DHCP to static. > >I once worked in an environment that consisted of 10 floors of "engineers". >We got IP conflicts all the time because people didn't want to go through >the process of asking for an address - especially if they thought they >needed it only for a little while to test something out. At the time we >were using static addressing which was handed out by a bootp server > >Once we installed switches and HP Openview and implemented DHCP, we could >track down the offenders fairly quickly and then yank their connection (or >shut the port) and wait for the phone to ring. After awhile, the >"engineers" finally figured out that we could catch them and things cooled >down. Also, because the DHCP pools had enough addresses to handle >temporary >requirements. > >I haven't heard about the issue about greater ARP version. Usually whoever >has the address first wins and the second PC to attempt the address loses. >Usually an error is reported back on the second PC with the MAC address of >the PC that has the address already - which can be traced. > >Good user policies that are enforced and DHCP should prevent IP conflict >problems. > > >Kevin Wigle > > >- Original Message - >From: "Hamid Ali Asgari" >To: >Sent: Saturday, 18 August, 2001 15:22 >Subject: Avoiding IP conflicts in a MULTI-VLAN environment [7:16470] > > > > Hi group > > > > I am setting up a network with some NT4 servers, a Catalyst 2948 switch >, > > and a 7204 VXR router and some access servers. The network consists of >7 > > VLANs, and all the servers and routers are on multi-VLAN or TRUNK >interfaces > > on the switch. The LAN consists of many computers with different >operating > > systems such as UNIX, LINUX and Win2k. Lots of computers that will be > > connected to this LAN are laptops so I can't implement PORT SECURITY on >the > > Catalyst. > > > > The problem is that I want to prevent my clients to make IP Conflicts in >my > > network. Correct me if I am wrong, but someone had told me that when an >IP > > conflict occurs , the computer with the greater ARP version wins (or > > something like that !), so the RED HAT 7.1 LINUX operating systems would > > take down my NT servers. > > > > Any ideas or soloutions how I could prevent these conflicts? > > > > Thanks in advance > > > > Hamid > > > > > > > > > > > > > > > > > > - > > Do You Yahoo!? > > Make international calls for as low as $0.04/minute with Yahoo! >Messenger. _ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16513&t=16470 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ip default-network [7:16507]
Excellent find !! I never heard or seen that explained so succinctly. Good Post, Tony M. #6172 > Rich, > Try this brief lab example I got from the CCO. I think this will clear it > up > for you: > ip default-gateway > The ip default-gateway command differs from the other two commands in that > it > should only be used when ip routing is disabled on the Cisco router. For > instance, if the router is a host in the IP world, you can use this command > to define a default gateway for it. You might also use this command when > your > low end Cisco router is in boot mode in order to TFTP a Cisco IOS.Software > image to the router. In boot mode, the router doesn't have ip routing > enabled. > > ip default-network > Unlike the ip default-gateway command, you can use ip default-network when > ip > routing is enabled on the Cisco router. When you configure ip > default-network > the router considers routes to that network for installation as the gateway > of last resort on the router. > > For every network configured with ip default-network, if a router has a > route > to that network, that route is flagged as a candidate default route. Let's > look at the following routing table taken from a Cisco router: > > 2513#show ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP >D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area >E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP >i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > Gateway of last resort is not set > 161.44.0.0 255.255.255.0 is subnetted, 1 subnets > C 161.44.192.0 is directly connected, Ethernet0 > S198.10.1.0 [1/0] via 161.44.192.2 > 131.108.0.0 255.255.255.0 is subnetted, 1 subnets > C 131.108.99.0 is directly connected, TokenRing0 > > Note the static route to 198.10.1.0 via 161.44.192.2 and that the gateway of > last resort isn't set. If we configure ip default-network 198.10.1.0, the > routing table changes to the following: > > 2513#show ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP >D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area >E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP >i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > > Gateway of last resort is 161.44.192.2 to network 198.10.1.0 > > 161.44.0.0 255.255.255.0 is subnetted, 1 subnets > C 161.44.192.0 is directly connected, Ethernet0 > S 161.44.0.0 255.255.0.0 [1/0] via 161.44.192.0 > S*198.10.1.0 [1/0] via 161.44.192.2 > 131.108.0.0 255.255.255.0 is subnetted, 1 subnets > C 131.108.99.0 is directly connected, TokenRing0 > 2513#show ip protocols > 2513# > > We can see the gateway of last resort has now been set as 161.44.192.2. This > result is independent of any routing protocol, as shown by the show ip > protocols command at the bottom of the output. > > We can add another candidate default route simply by configuring another > instance of ip default-network: > > 2513#config terminal > Enter configuration commands, one per line. End with CNTL/Z. > 2513(config)#ip route 171.70.24.0 255.255.255.0 131.108.99.2 > 2513(config)#ip default-network 171.70.24.0 > 2513(config)#^Z > > 2513#show ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP >D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area >E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP >i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate > default > > Gateway of last resort is 161.44.192.2 to network 198.10.1.0 > > 161.44.0.0 255.255.255.0 is subnetted, 1 subnets > C161.44.192.0 is directly connected, Ethernet0 > S161.44.0.0 255.255.0.0 [1/0] via 161.44.192.0 > S* 198.10.1.0 [1/0] via 161.44.192.2 > 171.70.0.0 is variably subnetted, 2 subnets, 2 masks > S171.70.0.0 255.255.0.0 [1/0] via 171.70.24.0 > S171.70.24.0 255.255.255.0 [1/0] via 131.108.99.2 > 131.108.0.0 255.255.255.0 is subnetted, 1 subnets > C131.108.99.0 is directly connected, TokenRing0 > > Flagging a Default Network > Note: The ip default-network command is classful, which means if the router > has a route to the subnet indicated by this command, it installs the route > to > the major net. At this point neither network has been flagged as the default > network. The ip default-network command must be issued again, using the > major > net, in order to flag the candidate default route. > > 2513#config terminal > Enter configuration commands, one per line. End with CNTL/Z. > 2513(config)#ip default-network 171.70.0.0 > 2513(config)#^Z > > 2513#show ip route > Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP >D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area >E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP >
Re: Difficulty - CCIE written or CCNP [7:16504]
Sorry I cannot answer. However I do have additional question. Can one take CCIE written exam, then CCIE lab exam and become CCIE without going through CCNA and CCNP??? ""James Harris"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Would anyone who has taken the CCNP and the CCIE written exam > care to advise which is the hardest? I hear the CCIE written > exam is very basic. It certainly covers some simple topics but > would a candidate need to know networking to CCNP level or > higher to achieve thes pass mark? Put another way, how would you > compare two people, one with CCNP and not CCIE written, the > other with the CCIE written and not CCNP? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16514&t=16504 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Difficulty - CCIE written or CCNP [7:16504]
yes. they are different certification programs - Original Message - From: Thomas N. To: Sent: Sunday, August 19, 2001 8:31 PM Subject: Re: Difficulty - CCIE written or CCNP [7:16504] > Sorry I cannot answer. However I do have additional question. Can one take > CCIE written exam, then CCIE lab exam and become CCIE without going through > CCNA and CCNP??? > > > > ""James Harris"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Would anyone who has taken the CCNP and the CCIE written exam > > care to advise which is the hardest? I hear the CCIE written > > exam is very basic. It certainly covers some simple topics but > > would a candidate need to know networking to CCNP level or > > higher to achieve thes pass mark? Put another way, how would you > > compare two people, one with CCNP and not CCIE written, the > > other with the CCIE written and not CCNP? _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16515&t=16504 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Possibility for Etherchannel on Serial Interfaces [7:16517]
Hi all, Just a stupid question. Can I combine 2 serial interfaces using Etherchannel?? Is there such a feature on any Cisco routers?? Please advise. Thanks. Regards, Cheeyong Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16517&t=16517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Possibility for Etherchannel on Serial Interfaces [7:16517]
No etherchannel, but many other different ways like: MLPPP CEF per packet load balancing Regular per session or per packet load balancing. Do a search at "cisco.google.com/cisco" for examples and limitations. Usually I would find the links for ya but it's late and I am going to bed. Also check the groupstudy archives. Serial link load balancing has come up a lot in the last 6 months. Tony M. #6172 - Original Message - From: "Tay Chee Yong" To: Sent: Sunday, August 19, 2001 9:38 PM Subject: Possibility for Etherchannel on Serial Interfaces [7:16517] > Hi all, > > Just a stupid question. Can I combine 2 serial interfaces using > Etherchannel?? Is there such a feature on any Cisco routers?? Please > advise. Thanks. > > Regards, > Cheeyong Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16518&t=16517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Used Rack [7:15897]
Can you provide a more direct link ? ""Justin M. Clark"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > try musiciansfriends.com they have a 8U rack for $19. > > ""Ray Smith"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Anyone with a used 19" Network Rack in good condition to unload at a > > reasonable price, preferable in the New York/NJ area for the purpose of > > saving on shipping & handling? Thanks > > > > _ > > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16519&t=15897 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE R/S Lab lead time in Brussels [7:16491]
Hello Shahir, > Does anyone know what's the current lead time for booking the CCIE R/S lab > in Brussels? > TIA Today, you may register for May 2002 8-(( -- Adam Obszyqski Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16520&t=16491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: a lot of transcender/Boson/CCIE/CCNP/Solaris [7:16521]
How would you like, if some body did these kind of tradings on things that you have written, developed and / or is the source of your income. What goes around comes around. ---Original Message--- From: William Date: Sunday, August 19, 2001 10:29:51 AM To: [EMAIL PROTECTED] Subject: a lot of transcender/Boson/CCIE/CCNP/Solaris Admin/Checkpoint [7:16489] A lot of studying quesitons/ material to trade. Transcender/Boson/MS Press/ Sybex/ New Rider/Self Test/Crambible/ChinaIT/Measureup/MCSE2BE. Write to [EMAIL PROTECTED] for detail. Any exams, CCNP/CCIE/MCSE/CCIE/Solaris Admin/ Checkpoint, Any presswelcome! YOU MUST HAVE STUDY MATERIAL ON HAND TO TRADE WITH. OTHERWISE, PLS DON'T WRITE TO EMAIL. com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16521&t=16521 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
