RE: PAT AFTER NAT...IS IT POSSIBLE??? [7:66672]
Of course you can, but why not doing just PAT ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66674t=66672 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: PPP Problems - any ideas!!! [7:66486]
Saunders, is it finally working ? Tell us something !! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66568t=66486 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISIS Van Oene [7:66572]
Guys, After some lectures related to ISIS (Doyle, Caslow ect...), I am now assimilating the stuff by reading the two parts CertZone papers rewritten by Peter VanOene. As I am enjoying the reading, a strange thing is happening to me. The guides are very good, and now that I understand ISIS I am starting to love this routing protocol !! That's the first time it happens to me. Before, I just liked EIGRP because of its configuration simplicity but ISIS seems much more scalable, flexible etc... and exactly here is where its beauty resides. I can even say that it is helping me in understanding OSPF much more because of the comparisons. I never thought I could say such things about a routing protocol. Just wanted to write my thoughts. Thanks Peter !! note: and forgive my english. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66572t=66572 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Ping fail at all interfaces! [7:66472]
Encapsulation failed appears because of arp failing. Try debug arp and please could you paste show int f3/0 instead of show ip int fa3/0 ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66478t=66472 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: PPP Problems - any ideas!!! [7:66486]
Try debug ppp neg instead. If there is an issue before authentication takes place then you won't see anything. The config seems correct, could you paste a show interface serial 0 of both routers ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66494t=66486 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: PPP Problems - any ideas!!! [7:66486]
saunders1m wrote: Thanks for your help gents, im sure though i am missing something here as i have tried everything though i still seem to be missing something! Any further ideas would be great im stuck for moment!! Here is my both configs the #show int s0 When using debug ppp neg i get the following R10-1603R#debug ppp neg PPP protocol negotiation debugging is on R10-1603R# 02:38:11: Se0 LCP: TIMEout: State Listen 02:38:11: Se0 LCP: O CONFREQ [Listen] id 166 len 14 O CONFREQ means this one is sending ppp messages. It is no receiving any Input messages though. Can you try debug ppp neg on the other router ? 02:38:11: Se0 LCP:AuthProto PAP (0x0304C023) 02:38:11: Se0 LCP:MagicNumber 0x06B8DFA1 (0x050606B8DFA1) R10-1603R# 02:38:13: Se0 LCP: TIMEout: State REQsent 02:38:13: Se0 LCP: O CONFREQ [REQsent] id 167 len 14 02:38:13: Se0 LCP:AuthProto PAP (0x0304C023) 02:38:13: Se0 LCP:MagicNumber 0x06B8DFA1 (0x050606B8DFA1) R10-1603R#no 02:38:15: Se0 LCP: TIMEout: State REQsent 02:38:15: Se0 LCP: O CONFREQ [REQsent] id 168 len 14 02:38:15: Se0 LCP:AuthProto PAP (0x0304C023) 02:38:15: Se0 LCP:MagicNumber 0x06B8DFA1 (0x050606B8DFA1) R10-1603R#no debug 02:38:17: Se0 LCP: TIMEout: State REQsent Router 9 R9-1601R#show run Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname R9-1601R ! enable password cisco ! username R10-1603R password 0 cisco ip subnet-zero no ip domain-lookup ip host r1 192.169.1.1 ip host r2 192.169.2.2 ip host r3 192.169.3.3 ip host r4 192.169.4.4 ip host r5 192.169.5.5 ip host r6 192.169.6.6 ip host r7 192.169.7.7 ip host r8 192.169.8.8 ip host r9 192.169.9.9 ip host r10 192.169.10.10 ip host cat19 192.169.11.11 ip host r12 192.169.12.12 ! ! ! interface Loopback0 ip address 192.169.9.9 255.255.255.0 no ip directed-broadcast ! interface Ethernet0 no ip address no ip directed-broadcast shutdown ! interface Serial0 ip address 10.0.0.1 255.255.255.0 no ip directed-broadcast encapsulation ppp no fair-queue ppp authentication pap ppp pap sent-username R9-1601R password 7 121A0C041104 ! ip classless ! banner login ^C Welcome to www.ciscorack.co.uk - R9 Cisco 1601R Series ^C ! line con 0 exec-timeout 15 0 password d231303u logging synchronous login transport input none line vty 0 4 exec-timeout 15 0 password d231303u login ! end Serial0 is up, line protocol is down Hardware is QUICC Serial Internet address is 10.0.0.1/24 MTU 1500 bytes, BW 1544 Kbit, DLY 2 usec, rely 255/255, load 1/255 Encapsulation PPP, loopback not set, keepalive set (10 sec) LCP Listen Closed: IPCP, CDPCP Last input never, output never, output hang never Last clearing of show interface counters never Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 81 packets output, 1462 bytes, 0 underruns 0 output errors, 0 collisions, 45 interface resets 0 output buffer failures, 0 output buffers swapped out 70 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up Router 10 R10-1603R#show run Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname R10-1603R ! enable password cisco ! username R9-1601R password 0 cisco ip subnet-zero no ip domain-lookup ip host r1 192.169.1.1 ip host r2 192.169.2.2 ip host r3 192.169.3.3 ip host r4 192.169.4.4 ip host r5 192.169.5.5 ip host r6 192.169.6.6 ip host r7 192.169.7.7 ip host r8 192.169.8.8 ip host r9 192.169.9.9 ip host r10 192.169.10.10 ip host cat19 192.169.11.11 ip host r12 192.169.12.12 ! ! ! interface Loopback0 ip address 192.169.10.10 255.255.255.0 no ip directed-broadcast ! interface Ethernet0 no ip address no ip directed-broadcast shutdown ! interface Serial0 ip address 10.0.0.2 255.255.255.0 no ip directed-broadcast encapsulation ppp no fair-queue ppp authentication pap ppp pap sent-username R10-1603R password 7 05080F1C2243 ! interface BRI0 no ip address no ip directed-broadcast shutdown ! ip classless ! banner login ^C Welcome to www.ciscorack.co.uk - R10 Cisco 1603R Series ^C ! line con 0 exec-timeout 15 0 password d231303u logging synchronous login transport input none line vty 0 4 exec-timeout 15 0 password d231303u login ! end R10-1603R#sh int s0 Serial0 is up, line protocol is down Hardware is QUICC Serial Internet address is 10.0.0.2/24
Re: Ping fail at all interfaces! [7:66472]
To me everything seems well configured plus Xy says he has been troubleshooting for one month now. I would suggest that you upgrade the IOS on this particular router. Also, does it happens the same if you ping from the other router ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66508t=66472 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: PPP Problems - any ideas!!! [7:66486]
Where is the clock rate ? I suppose both serials are connected back to back ? Then do a show controller serial 0 and see which one has the dce V35 or X21. Then put clock rate 64000 for example !! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66512t=66486 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: BGP Route Reflectors [7:66488]
The Long and Winding Road wrote: wrote in message news:[EMAIL PROTECTED] All, Please can someone clear this up for me, if you have the time. IBGP peers do not have to be physically connected to one another, as long as an IGP (most preferably) is running between them. nope. direct connect is preferred, but nope - don't have to be On page 128 (paragraph 1) of the Routing TCP/IP Volume 2 book, it says the following about route reflectors and clients :- The clients have physical connections to each of the route reflectors, and they peer to each preferred but not necessary. that's why there is an neighbor ebgp-multihop I thought ebgp-multihop was for neighbors in different AS's ? Going right now to check it on the command reference ... command :- I assume that each client in a iBGP domain, does not need to share a physical data-link to each RR? nope Many thx. (maybe im just tired from studying all weekend). Regards, Ken For more information about Barclays Capital, please visit our web site at http://www.barcap.com. Internet communications are not secure and therefore the Barclays Group does not accept legal responsibility for the contents of this message. Although the Barclays Group operates anti-virus programmes, it does not accept responsibility for any damage whatsoever that is caused by viruses being passed. Any views or opinions presented are solely those of the author and do not necessarily represent those of the Barclays Group. Replies to this email may be monitored by the Barclays Group for operational or business reasons. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66514t=66488 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Studying for the written CCIE [7:66450]
Try this http://home.attbi.com/~blaga/Written.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66451t=66450 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ASET [7:66460]
Does anyone know if there is a way to obtain the ASET labs apart from being a Cisco partner ? Thx. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66460t=66460 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCIE Practice Labs - Redustribution Strategies [7:66306]
Chuck, Is there any way to get those ASET labs without being a Cisco partner ? Maybe a book containing them ? Thx. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66354t=66306 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MADRID [7:66355]
Just seeking a lab partner in Madrid (Spain). Any ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66355t=66355 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: More ISDN Practice Labs - You gotta see this one [7:66056]
Chuck, Where did you get this solution lab from ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66076t=66056 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OSPF Topology Question - Parkhurst's Book [7:65532]
Hey Chuck, Which book is this one ? Cheers. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=65550t=65532 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Workbook homelab ? [7:65161]
I was wondering whether the people who passed the lab and used the well known prep lab workbooks did adapt their own home lab to do the exercises or bought all the necessary routers/switches to set up the 13 router lab or just purchased remote rack. I myself possess 6 routers but they are only sufficient to do the Solie's labs, not more. Thanks for any comment on this. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=65161t=65161 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Workbook homelab ? [7:65161]
Wow, I would be proud to own such a lab !! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=65207t=65161 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco exam Centers (Spain, Madrid) [7:58898]
Hi, I found that Microforum is the cheapest of all, and you can choose any working day of the week to do the test !!! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=58983t=58898 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Ccie is a rip off! [7:58458]
Silju Pillai wrote: The book was released as per the old test. So there is no point in blaming the book. Atleast give some credit to the author for releasing the book. He might have spend nights writing the chapters.Its a good book to start with. Also you cannot expect the whole topic to cover in one single book. Its true that new CCIE written goes in depth. But its better than the old written. Read Doyle 1 and 2, CCIE Lan switching, Internet routing Architecture, CCIE book by Caslow and www.cisco.com. regards Instead I would say, just read CCO. I believe the questions are taken straight from Cisco web !!! Then read Bruno's book to assimilate everything. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=58496t=58458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE requirement: full time networking? [7:57936]
The Long and Winding Road wrote: Symon Thurlow wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi guys, Looking for some feedback as to how difficult it would be to pass the CCIE lab if networking was not your primary role. probably slightly more difficult than if networking were your primary role. seriously. just because you are a full time net engineer doesn't mean that in your daily work you cover the depth and breadth of CCIE Lab topics on a regular basis. production networks, one would hope, are stable entities. one it is up and working, you monitor, maintain, and troubleshoot. I believe anyone who has been through the CCIE Lab will agree - it is unlikely you will ever find a production network quite like the Lab. ;-) For instance, I am a bit of an IT generalist, networking probably takes up 30% of my time. I don't feel confident that only working this much with Cisco devices would enable me to retain enough knowledge to pass the lab. that's why NLI came into being. That's why FatKid and IPExpert and Hello Computers are around. You need decent theoretical background, but mostly you need hands on practice with a number of complex scenarios so you can get used to configuring difficult requirements under sever time pressure. I know that it is possible to cram for months and then possibly pass, but it is sort of pointless if you forget it a couple months later (IMHO). that's why you decide to put in 15-30 hours a week study time. Reading. Labs, etc. That;s why you have a study plan. That;s why you identify the core topics and devote some time every week to covering them. Chuck, the methodology you propose sounds interesting but I am not sure I understand identify the core topics. Could you explain that and put me on the right way ? Give some examples ? Do you mean BGP, FRelay etc ... How can anyone identify the core topics without having been exposed to the exam ? Regards. Thoughts? nope - actions. :-) Symon Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=58097t=57936 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE requirement: full time networking? [7:57936]
The Long and Winding Road wrote: richard dumoulin wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hal Logan wrote: Not to discourage you or anything, but if a candidate crams for months and then immediately forgets everything after the lab, that's an indication the he or she got by using primarily short-term memory. I personally don't think it's possible to get through the lab unless you make extensive use of your long term memory. Here I have to disagree. In my opinion you don't need memory at all but understanding. If you understand networking at a high level, then everythings come without effort, the commands etc ... my 2 cents. CL: Respectfully, I disagree with you to an extent. Perhaps it's just a matter of interpretation on my part. But having been there twice my belief based on those experiences is that you have to know the configurations. It really is a bit of lengthy memorization, IMHO. CL: take my OSPF interfaces. please! ( OK, sorry ) but understanding isn't really enough. You have to be moving your fingers as you read the Lab requirement. when the frame relay requirement for router 1 is one subinterface connects to routers 2 and 3, and another connects to router 4 you have to know all the implications and be typing them without thinking. OK. Maybe we disagree on the meaning of understanding Or maybe I've configured so many examples that my memory is in my fingers. CL: the other day, someone asked whether or not BGP would run over an ip unnumbered link. I understood the answer to be yes. I knew the answer to be yes. For the QD lab I created to prove the point, though, I just banged out the configs, including the neighbor rebgp multihop command and the static route command required on each router. understanding or just the fact that I've done enough of these things that is is second nature now? CL: that's why I suggested that the keys for success are 1) the identification of the core topics, 2) the study plan, which includes covering and reviewing all of these core topics at least once every two weeks, and 3) practicing speed of execution. CL: note that I am not saying you are wrong. There are many ways to prepare. It's just that I believe the key is in the fingers, not in the intellect. But here you are disagreeing and at the same time saying I am right. Cut your head from your shoulders, and let's see how your fingers work !! Just kidding. - Original Message - From: not enough time to study To: Sent: Saturday, November 23, 2002 12:31 PM Subject: Re: CCIE requirement: full time networking? [7:57936] IMHO--the fact is that even if your job is 100% networking there are very few jobs where you will actually use the scope of what you might see on the lab test. i no matter what, be prepared to spend many hours preparing. Symon Thurlow wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi guys, Looking for some feedback as to how difficult it would be to pass the CCIE lab if networking was not your primary role. For instance, I am a bit of an IT generalist, networking probably takes up 30% of my time. I don't feel confident that only working this much with Cisco devices would enable me to retain enough knowledge to pass the lab. I know that it is possible to cram for months and then possibly pass, but it is sort of pointless if you forget it a couple months later (IMHO). Thoughts? Symon Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=58085t=57936 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE requirement: full time networking? [7:57936]
Hal Logan wrote: Not to discourage you or anything, but if a candidate crams for months and then immediately forgets everything after the lab, that's an indication the he or she got by using primarily short-term memory. I personally don't think it's possible to get through the lab unless you make extensive use of your long term memory. Here I have to disagree. In my opinion you don't need memory at all but understanding. If you understand networking at a high level, then everythings come without effort, the commands etc ... my 2 cents. - Original Message - From: not enough time to study To: Sent: Saturday, November 23, 2002 12:31 PM Subject: Re: CCIE requirement: full time networking? [7:57936] IMHO--the fact is that even if your job is 100% networking there are very few jobs where you will actually use the scope of what you might see on the lab test. i no matter what, be prepared to spend many hours preparing. Symon Thurlow wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi guys, Looking for some feedback as to how difficult it would be to pass the CCIE lab if networking was not your primary role. For instance, I am a bit of an IT generalist, networking probably takes up 30% of my time. I don't feel confident that only working this much with Cisco devices would enable me to retain enough knowledge to pass the lab. I know that it is possible to cram for months and then possibly pass, but it is sort of pointless if you forget it a couple months later (IMHO). Thoughts? Symon Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=57978t=57936 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: books for ccie written [7:56604]
Hemant, I would go for the CCNP as it is a good way to prepare for the CCIE, and by the way you would gain the cert, it does not hurt, Regards. note: Another very good book is Network Design Solutions, it is on the CD. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56777t=56604 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: QOS certzone guide question [7:52681]
Oh thx for that great explanation !!! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52753t=52681 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
QOS certzone guide question [7:52681]
Hi all, In the certificationzone QOS guide, Howard mentions several times the words FIB and RIB. Can anyone explain the difference ? Thx. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52681t=52681 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: QOS certzone guide question [7:52681]
Thx but I already knew that. I am just having difficulties in understanding their functions. What are they for ? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52687t=52681 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Does cisco IOS support Frame Relay over ISDN... [7:51641]
Yes it supports it. I have seen it over 1 b channel. It also works over adsl. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52038t=51641 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Modem Speeds for callback [7:51472]
I have seen 50,6 Kbps here in Spain. Once I tried the callback stuff between a laptop with modem and a 1601 with a serially attached modem. The router did the callback, and the laptop modem answered but I did not succeed in having windows 2000 recognised a ppp callback. It is just that I do not know anything about windows stuff. I just gave up when arrived at this point :(( maybe someone know this ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51563t=51472 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicast DR and IGMP querier [7:51458]
Raj Santiago wrote: Hi Richard, Okay your question is basically what is a IGMP querier and Multicast Designated Router Igmp querier is the router in charge to see if any hosts want to listen to a multicast stream. Designated Router is the router is charge to facilitate pim join, prune and register messages(This also depends on the mode of pim your running, im being very abstract here); Basically the multicast routing part. But it seems to me that the DR will also query the hosts!! Under IGMP version 1, the router with the highest ip address was BOTH the IGMP querier and Designated Router. Under IGMP version 2, the router with highest ip address is the DR and the router with the lowest ip address is the IGMP querier. If I am right, both the DR and the querier will query the hosts ?? Cheers. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51494t=51458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicast DR and IGMP querier [7:51458]
RFC's are great, but have to look also at how Cisco IOS implements the rfc. PIM DR's use IGMP to query the hosts too !! Regards. - Original Message - From: Kent Yu To: richard dumoulin ; Sent: Friday, August 16, 2002 4:20 PM Subject: Re: Multicast DR and IGMP querier [7:51458] Richard, As we mentioned yesterday, only routers speak PIM, I am not sure where you got the impression that PIM DRs query the hosts, routers only use IGMP to query the hosts. I think as many have suggested, nothing is better than reading the specs, in this case, RFC 2117 should explain this pretty well. HTH Kent - Original Message - From: richard dumoulin To: Sent: Friday, August 16, 2002 3:47 AM Subject: Re: Multicast DR and IGMP querier [7:51458] Raj Santiago wrote: Hi Richard, Okay your question is basically what is a IGMP querier and Multicast Designated Router Igmp querier is the router in charge to see if any hosts want to listen to a multicast stream. Designated Router is the router is charge to facilitate pim join, prune and register messages(This also depends on the mode of pim your running, im being very abstract here); Basically the multicast routing part. But it seems to me that the DR will also query the hosts!! Under IGMP version 1, the router with the highest ip address was BOTH the IGMP querier and Designated Router. Under IGMP version 2, the router with highest ip address is the DR and the router with the lowest ip address is the IGMP querier. If I am right, both the DR and the querier will query the hosts ?? Cheers. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51506t=51458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multicast DR and IGMP querier [7:51458]
Here it is !! That was my confusion, because it seems that this capability was added in order to query IGMP version 1 hosts. With IGMP version 2 it seems you do not need it. But what happen then if you have both IGMP v2 and PIM DR's ?? Do they both query the hosts ? Any Multicast expert right there ? Regards. - Original Message - From: Kent Yu To: richard dumoulin ; Sent: Friday, August 16, 2002 4:42 PM Subject: Re: Multicast DR and IGMP querier [7:51458] Do you mean that in IOS if a router is running PIM and is a DR, it will query even if it sees IGMP query messages from another router with lower ip address? Kent - Original Message - From: richard dumoulin To: Kent Yu ; Sent: Friday, August 16, 2002 10:34 AM Subject: Re: Multicast DR and IGMP querier [7:51458] RFC's are great, but have to look also at how Cisco IOS implements the rfc. PIM DR's use IGMP to query the hosts too !! Regards. - Original Message - From: Kent Yu To: richard dumoulin ; Sent: Friday, August 16, 2002 4:20 PM Subject: Re: Multicast DR and IGMP querier [7:51458] Richard, As we mentioned yesterday, only routers speak PIM, I am not sure where you got the impression that PIM DRs query the hosts, routers only use IGMP to query the hosts. I think as many have suggested, nothing is better than reading the specs, in this case, RFC 2117 should explain this pretty well. HTH Kent - Original Message - From: richard dumoulin To: Sent: Friday, August 16, 2002 3:47 AM Subject: Re: Multicast DR and IGMP querier [7:51458] Raj Santiago wrote: Hi Richard, Okay your question is basically what is a IGMP querier and Multicast Designated Router Igmp querier is the router in charge to see if any hosts want to listen to a multicast stream. Designated Router is the router is charge to facilitate pim join, prune and register messages(This also depends on the mode of pim your running, im being very abstract here); Basically the multicast routing part. But it seems to me that the DR will also query the hosts!! Under IGMP version 1, the router with the highest ip address was BOTH the IGMP querier and Designated Router. Under IGMP version 2, the router with highest ip address is the DR and the router with the lowest ip address is the IGMP querier. If I am right, both the DR and the querier will query the hosts ?? Cheers. [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51515t=51458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multicast DR and IGMP querier [7:51458]
Dear all, I am still struggling in understanding the differences and needs and meanings of Multicast designated routers and IGMP queriers. Can anyone help ? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51458t=51458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multicast DR and IGMP querier [7:51458]
I already read this in your awsome certification study guide (congrats, it was very helpful). But I was not asking for this. I am actually confused by two terms: IGMP querier and Multicast Designated Router. I have read somewhere that an IGMP querier is elected in a multiaccess network (ie ethernet) to query the hosts for their multicast group membership. The router with the lowest IP address is elected as the querier. But it is also said that a Designated Router is elected (the one with the higher IP address) to query the hosts for their multicast group membership, and in case of PIM Sparse mode, it also sends the join and leave multicast group membership to the RP. My confusion comes from the fact that there will be two routers querying the hosts ?? Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51468t=51458 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Off Topic - IP protocol scans [7:49358]
Chuck wrote: never mind - I've done a bit of testing, and it appears that the IP number that is incrementing is a count of distinct events. I.e. if I do a test ping, let it sit a while, and do another test ping, I see the number increment. I gotta get out more. LOL, Chuck. Good to know anyway. Chuck wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a piece of equipment connected to the public internet for something I'm doing with a friend. It is protected by an access-list restricting the source address and the particular application. However, in monitoring the device, I am seeing what appear to be not only TCP port scans, but IP protocol scans. I.e. a series of inquiries using different successive IP protocol numbers. 17:43:26: datagramsize=48, IP 87: s=x.x.x.x (local), d=12.246.161.19, totl 17:43:26: datagramsize=48, IP 87: s=x.x.x.x (local), d=12.246.161.19 (Fast 17:43:26: datagramsize=70, IP 87: s=x.x.x.x (local), d=12.246.161.19 (Fast 17:43:32: datagramsize=48, IP 88: s=x.x.x.x (local), d=12.246.161.19, totlen 56, 17:56:30: datagramsize=48, IP 90: s=x.x.x.x (local), d=61.37.239.23, totle 17:56:36: datagramsize=48, IP 91: s=x.x.x.x (local), d=61.37.239.23, totle ( this output is showing the reply my device is sending to the IP's in question. ) at least, I am assuming that the IP XX = the IP protocol number, as reported by the debug. Just wondering if one of you security gurus might shed some light here, seeing as how out of touch I seem to be. This one of the standard hacking procedures? Been around a while? new because so many entities are now doing a lot more to crack down on TCP port scanning? I checked the various registries. The behavior is coming from several places, some Thailand, some Korea, some from customers of ATT.net Just looking to increase my awareness. thanks. Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49407t=49358 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Priscilla Oppenheimer [7:49347]
Chuck wrote: hhm learn something new every day. thanks. that still gets back to how ip unnumbered really works, as opposed to how most of us think it works. RFC 1812 specifically talks about using the RID as the interface address: this memo has adopted an alternate scheme, which has been invented multiple times but which is probably originally attributable to Phil Karn. In this scheme, a router that has unnumbered point to point lines also has a special IP address, called a router-id in this memo. The router-id is one of the router's IP addresses (a router is required to have at least one IP address). This router-id is used as if it is the IP address of all unnumbered interfaces. whaddaya know - I did recall correctly :- so it would appear that in the Cisco implementation, at least, for unnumbered interfaces, the reference interface ip also becomes the RID for purposes of unnumbered? So what does this discovery do to the proposition that one should use a loopback as the reference for unnumbered interfaces because loopbacks are never down??? Good point Chuck. Peter, I did not know the meaning of quote, hehe. interesting discussion. learned something new. Chuck richard dumoulin wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... No prob, see below. RB#sh run Building configuration... Current configuration: ! version 11.2 no service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname RB ! enable password cisco ! no ip domain-lookup ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 ! interface Serial0 ip unnumbered Ethernet0 ! interface Serial1 no ip address shutdown ! interface Serial2 no ip address shutdown ! interface Serial3 no ip address shutdown ! interface Serial4 no ip address shutdown ! interface Serial5 no ip address shutdown ! interface Serial6 no ip address shutdown ! interface Serial7 no ip address shutdown ! interface Serial8 no ip address shutdown ! interface Serial9 no ip address shutdown ! interface BRI0 no ip address shutdown ! no ip classless ip route 0.0.0.0 0.0.0.0 Serial0 ! line con 0 line aux 0 line vty 0 4 password cisco login ! end RB#172.16.1.1 Trying 172.16.1.1 ... Open User Access Verification Password: RAen Password: RA#sh run Building configuration... Current configuration : 801 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname RA ! enable password cisco ! memory-size iomem 10 ip subnet-zero ! ! no ip domain-lookup ! ip ssh time-out 120 ip ssh authentication-retries 3 ! call rsvp-sync ! ! ! ! ! ! ! ! interface Ethernet0/0 ip address 172.16.1.1 255.255.0.0 no keepalive half-duplex ! interface Serial0/0 no ip address shutdown ! interface Serial0/1 no ip address shutdown ! interface Serial0/2 ip unnumbered Ethernet0/0 clockrate 200 ! interface Serial0/3 no ip address shutdown ! ip classless ip route 0.0.0.0 0.0.0.0 Serial0/2 no ip http server ! ! ! dial-peer cor custom ! ! ! ! ! line con 0 line aux 0 line vty 0 4 password cisco login line vty 5 15 login ! no scheduler allocate end RA# RB# [Resuming connection 1 to 172.16.1.1 ... ] RA# RA# RB#172.16.1.1 Trying 172.16.1.1 ... Open User Access Verification Password: RAen Password: RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms RA# RB#term mon % Console already monitors RB# %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to down [Resuming connection 2 to 172.16.1.1 ... ] RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/8 ms RA# RB#conf t Enter configuration commands, one per line. End with CNTL/Z. RB(config)#int e0 RB(config-if)#shut RB(config-if)# %LINK-5-CHANGED: Interface Ethernet0, changed state to administratively down^Z RB#d %SYS-5-CONFIG_I: Configured from console by consoleeb ip pa det IP packet debugging is on (detailed) RB# [Resuming connection 2 to 172.16.1.1 ... ] RA# IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40,
Re: Priscilla Oppenheimer [7:49347]
Peter , The book says clearly that the interface is pingable. Even more, I have tried it and it really works. I just took two routers connected by back_to_back serial cables with IP unnumbered configured on both. When I unplugg the Lan interface of one them, this router is still reachable by the IP address. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49374t=49347 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Priscilla Oppenheimer [7:49347]
I have even put the ethernet into shutdown !! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49375t=49347 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Priscilla Oppenheimer [7:49347]
No prob, see below. RB#sh run Building configuration... Current configuration: ! version 11.2 no service password-encryption no service udp-small-servers no service tcp-small-servers ! hostname RB ! enable password cisco ! no ip domain-lookup ! interface Ethernet0 ip address 192.168.1.1 255.255.255.0 ! interface Serial0 ip unnumbered Ethernet0 ! interface Serial1 no ip address shutdown ! interface Serial2 no ip address shutdown ! interface Serial3 no ip address shutdown ! interface Serial4 no ip address shutdown ! interface Serial5 no ip address shutdown ! interface Serial6 no ip address shutdown ! interface Serial7 no ip address shutdown ! interface Serial8 no ip address shutdown ! interface Serial9 no ip address shutdown ! interface BRI0 no ip address shutdown ! no ip classless ip route 0.0.0.0 0.0.0.0 Serial0 ! line con 0 line aux 0 line vty 0 4 password cisco login ! end RB#172.16.1.1 Trying 172.16.1.1 ... Open User Access Verification Password: RAen Password: RA#sh run Building configuration... Current configuration : 801 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname RA ! enable password cisco ! memory-size iomem 10 ip subnet-zero ! ! no ip domain-lookup ! ip ssh time-out 120 ip ssh authentication-retries 3 ! call rsvp-sync ! ! ! ! ! ! ! ! interface Ethernet0/0 ip address 172.16.1.1 255.255.0.0 no keepalive half-duplex ! interface Serial0/0 no ip address shutdown ! interface Serial0/1 no ip address shutdown ! interface Serial0/2 ip unnumbered Ethernet0/0 clockrate 200 ! interface Serial0/3 no ip address shutdown ! ip classless ip route 0.0.0.0 0.0.0.0 Serial0/2 no ip http server ! ! ! dial-peer cor custom ! ! ! ! ! line con 0 line aux 0 line vty 0 4 password cisco login line vty 5 15 login ! no scheduler allocate end RA# RB# [Resuming connection 1 to 172.16.1.1 ... ] RA# RA# RB#172.16.1.1 Trying 172.16.1.1 ... Open User Access Verification Password: RAen Password: RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms RA# RB#term mon % Console already monitors RB# %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed state to down [Resuming connection 2 to 172.16.1.1 ... ] RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms RA#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: ! Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/8 ms RA# RB#conf t Enter configuration commands, one per line. End with CNTL/Z. RB(config)#int e0 RB(config-if)#shut RB(config-if)# %LINK-5-CHANGED: Interface Ethernet0, changed state to administratively down^Z RB#d %SYS-5-CONFIG_I: Configured from console by consoleeb ip pa det IP packet debugging is on (detailed) RB# [Resuming connection 2 to 172.16.1.1 ... ] RA# IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40, sending TCP src=11001, dst=23, seq=3044171494, ack=4024004928, win=4288 ACK IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 42, sending TCP src=11001, dst=23, seq=3044171494, ack=4024004928, win=4288 ACK PSH IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 42, rcvd 3 TCP src=23, dst=11001, seq=4024004928, ack=3044171496, win=4058 ACK PSH IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 43, rcvd 3 TCP src=23, dst=11001, seq=4024004930, ack=3044171496, win=4058 ACK PSH IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40, sending TCP src=11001, dst=23, seq=3044171496, ack=4024004933, win=4283 ACKping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !! IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 41, sending TCP src=11001, dst=23, seq=3044171496, ack=4024004933, win=4283 ACK PSH IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 56, rcvd 3 TCP src=23, dst=11001, seq=4024004933, ack=3044171497, win=4057 ACK PSH IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 40, sending TCP src=11001, dst=23, seq=3044171497, ack=4024004949, win=4267 ACK IP: s=192.168.1.1 (local), d=172.16.1.1 (Serial0), len 42, sending TCP s!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 12/16/20 ms RA#rc=11001, dst=23, seq=3044171497, ack=4024004949, win=4267 ACK PSH IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 42, rcvd 3 TCP src=23, dst=11001, seq=4024004949, ack=3044171499, win=4055 ACK PSH IP: s=172.16.1.1 (Serial0), d=192.168.1.1 (Serial0), len 142, rcvd 3 TCP src=23, dst=11001, seq=4024004951, ack=3044171499, win=4055 ACK PSH IP: s=172.16.1.1
Re: Priscilla Oppenheimer [7:49347]
As you see, the serial are configured with IP unnumbered, but when deb IP packet is on, It is as if the IP address belongs to the serial interface. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49387t=49347 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ip unnumbered [7:48894]
Hey guys, I have to connect a Cisco router to the internet (Worldcom) and I was told the following If your router is a CISCO model, then there is no need to assign actual IP addresses to the WAN serial interfaces since CISCO's un-numbered technology can be employed. Does this mean that I can configure IP unnumbered ethernet0 or loopback0 (with one of them having a routable IP address) and so I must configure ppp encap on the serial ?? I am a bit confused, thx for your help !! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48894t=48894 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Unable to access MS Outlook using IPSec Lan-to [7:48495]
Supernet might be right. It is a common problem of all sort of VPN's. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48513t=48495 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Certificationzone [7:48390]
Thanks for all your replies. I'm a suscribed member, I missed two weekly e-mails and was starting to get afraid as I love Certificationzone. The fact is that finally yersteday I received the mail. So I am reassured. ZONE's first Distance Learning Bootcamp ?That interests me. I have also read about some new labs added in the near future with HelloComputer. Surely, this way I will have to renew my suscription for two years more :) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48477t=48390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Certificationzone [7:48390] (resend 2) [7:48443]
I am suscribed and was afraid of loosing Certificationzone coz I love it. But finally I received the weekly e-mail yersteday. Distance bootcamp ?? That interests me. Surely, this way Certificationzone obliges me to renew the suscription for 2 years at least. Anyway, thx to all ur replies. Regards. note: it's the fifth time I try to post something here without success. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48515t=48443 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Certificationzone [7:48390]
Anyone knows what happens with them ? They no longer send their weekly e-mails nor do they reply to e-mails sent to them. Also their forum is closed. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48390t=48390 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: confusion on ppp auth chap callin/ppp auth pap [7:48325]
With the callin option, only the one who is calling needs to authenticate himsel. Without it, you have to configure chap usernames and password at both ends. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48392t=48325 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: confusion on ppp auth chap callin/ppp auth pap [7:48325]
When you are using the callin option, only the one who calls needs to authenticate himsefl. You know, when you do not conigure this option, you have to configure chap username and password for both ends. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48391t=48325 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Mail Relay [7:45144]
Ok guys, thx to all for ur help. I think I got the picture. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45341t=45144 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Mail Relay [7:45144]
Nobody knows ?? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45258t=45144 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Mail Relay [7:45144]
Can anyone tell me what is a mail relay for ?? I know it is not a Cisco issue, but for me it is related to the fact that I am only studying cisco stuff and therefore do not know anything about those kind of Microsoft things. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45144t=45144 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Native Vlan [7:45146]
The only thing I know from the switching exam, is that it is the vlan number the trunk uses in case the trunk feature fails. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45156t=45146 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP Study Guide [7:43932]
This book covers more than needed for the exam, so you should be well prepared after reading it. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=43933t=43932 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN dial problem [7:43071]
As you get the message waiting for acrrier timeout,I would act on the following order: - Check the cable (try 1 or 2 cables) between the Nt1 and the 1600 router - If this does not work then I am 90 % sure that it is a Telco problem. Have them check the ISDN switch (near the 1600) and the NT1. note: there is a third possibility, and that is having the bri interface broken. But I have never found one, and I have installed and configured a lot of them. Hope this helps. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=43274t=43071 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: MPLS [7:35366]
Kevin, Thanks for ur help. I am having a rest from the office and I believe my coleague made it worked by creating an ebgp session between 2 loopback addresses. Now my issue is how to make it work with a 128 Kbps isdn access line. Cisco has still not solved the ppp multilink issue into an MPLS backbone, but I am sure there should be a solution. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=35445t=35366 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MPLS [7:35366]
Anyone knows how to load share the traffic between 2 CE-PE links ? I have noticed that the traffic going from the PE toward the CE is not balanced . Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=35366t=35366 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 3com router configuration [7:17491]
As far as I remember (I configured 2 3com routers 2 years ago), the 3com router has a menu driven console (much the same as the catalyst 1900).So the only thing you have to do is to connect to the console port and select the number of the option you want to configure, then you type the parameter needed etc ... If you can configure a Cisco router, 3com will be very easy. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17567t=17491 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP Routing Exam [7:16913]
I believe it is 699 out of 1000 with 62 questions. Following the formula 300+700(x/62)=699,it means that you need [(699-300)/700]*62=35.34 questions out of 62 to pass the exam. Conclusion, you need 57 % to pass. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=16916t=16913 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: router boots into rommon mode... [7:16890]
I think you should change the config-register to a value like 0x2102 or something finishing with 2. If I remember well, the number 2 means that the router should load the ios from flash.I believe you have set this value to something like 0x2101 or 0x2100. Regards. note: I need to check this, as I am forgetting the CCNA stuff :) note2: to change the register, you can try ? to see which rommon os command will let you do it. In certain rommon the command is confreg 0x2102 and in others it is o/r 0x2102.Then you issue boot or i to boot the router. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=16919t=16890 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Input errors and aborts... [7:16873]
Hey, don't forget to tell us if it worked :( Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=16920t=16873 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Able to Traceroute but Unable to ping to IPs [7:16847]
I agree with Patrick. You may experience firewall or acl's restrictions. As Howard says in one of his tutorials (Routing principles), it is possible that you can Trace and not ping. Ping uses ICMP and Traceroute uses UDP (Cisco uses incremental UDP ports starting from 33000). This means that you have IP connectivity, but something is restricting your traffic. Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=16921t=16847 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: What type console cable for Cisco 1003? [7:16844]
To be sure your roll-over cable works, try another one.If it does not, try with a straight through cable. Some Cisco routers work this way. If you still experience problems, check your Hyperterminal config to be 9600 etc... It is also possible that the speed has been setup at a lower or higher speed in the concole port of the router (config-register value). Also, if you have a BRI interface, maybe someone plugged the CAT 5 cable coming from an NT1 into the console port, and in this case... Regards. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=16923t=16844 -- 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=7i=16507t=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=7i=16510t=16510 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
