EIGRP Troubleshooting

[cyberWolf]

Hi Good day,

May I request for advice on what went wrong on my laboratory. During the set-up process PC A, B and C can ping each other and works well

I configured necessary interfaces, networks and loop back, use auto summarization for R1 and manual summarization for R3 then I adjusted the bandwidth per the lab instructions and when I came across running

hello-interval

with 60 seconds on each interface s0/0/0 and s0/0/1 on all routers, I received an unusual feeds, I kept on receiving up and down adjacency messages, none stop, I supposed it's not normal? 

In addition, PC-A cannot ping PC-B anymore but PC-C can ping all of them, I am thinking there are misconfiguration on R1/R2 interfaces that connects to R2 where PC-B and PC-A communicates and connected.

I am new to this whole networking thing as a part of my laboratory and trying to figure out and learning how it works.

Your kind advice is truly appreciated.

Thank you,

[Flavio Miranda · Accepted solution]

Which is the enable password of the routers?  Put the passwords on the pkt files and I help you.

[cyberWolf]

Oh, thank you so much and appreciates it. Below is the credentials for my lab.

Device Password             : cisco

Exec-Mode Password is    : class

I tried to change some configuration in hello -interval from 60 I lowered it to 5 and the error was gone, and it works as expected, I can ping all the PC's now A,B and C.

But what is strange for me now is, I did not use any

hold-time 

command and If I did used it, running

hold-time eigrp 1 180

after the hello-interval it does work, thus, I just ignored the

hold-time

command since PC-A,B and C can communicate with each other now.

I am not sure if I did the right thing ignoring

hold-time

thus, I am attaching the new pkt. file that can ping each PC. for your advice, and It will truly help me in a long run.

Thank you in advance,

[cyberWolf]

Sorry see below correction highlighted in blue;

But what is strange for me now is, I did not use any

hold-time 

command and If I did used it, running

hold-time eigrp 1 180

after the hello-interval it doesn't work, thus, I just ignored the

hold-time

command since PC-A,B and C can communicate with each other now.

[paul driver · Accepted solution]

Hello

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@cyberWolf wrote:

use auto summarization for R1 and manual summarization

---

This is possible why now you experiencing eigrp incomitances , as @Flavio Miranda  suggest please provide the access creds to the PT file and we should then be able to see what is happening