Re: EIGRP Question

Fantastic.

On Thu, Nov 19, 2009 at 1:50 PM, Steve Shaw <shaw38_at_gmail.com> wrote:

> Horacio,
>
> If you have access to do a capture on the incoming interface, you'll see
> the
> k-values in the EIGRP hello clear as day
>
> But since we won't have that luxury during the lab, you could grab a cruel
> packet dump from a "debug ip packet detail dump" tied to an access list
> where x.x.x.x is the source interface of the far side:
>
> access-list 100 permit ip host x.x.x.x host 224.0.0.10
> !
> debug ip packet detail 100 dump
>
>
> You'll get something like the following:
>
> 07A01740: 0100 5E00000A
> 07A01750: C2000570 00000800 45C0003C 00000000
> 07A01760: 0158CD9E 0A010101 E000000A 0205EDC9
> 07A01770: 00000000 00000000 00000000 00000001
> 07A01780: 0001000C 01010101 0100000F 00040008
> 07A01790: 0C040102
>
> Ignore the "07A017XX:" hex.
>
> 0100 5E00000A
> C2000570 00000800 45C0003C 00000000
> 0158CD9E 0A010101 E000000A 0205EDC9
> 00000000 00000000 00000000 00000001
> 0001000C 01010101 0100000F 00040008
> 0C040102
>
> Count 16-bytes from the end of the frame. This is where the k-values are
> offset. The 5 k-values are each 1-byte in length so grab the next 5-bytes
> which will give you:
>
> 01010101 01
>
> Now you know this neighbor is advertising the following k-values:
>
> k1=1 k2=1 k3=1 k4=1 k5=1
>
> -Steve
>
>
> On Thu, Nov 19, 2009 at 12:57 PM, Horacio Gaston Farias <
> hfarias_at_iplan.com.ar> wrote:
>
> > Hi people, Im troubleshooting an issue with two EIGRP neighbhors in wich
> > you can see with debug eigrp packets : K Value Mismatch.
> >
> > I dont have access to the remote device, so, I need to know if exists a
> > Debug that shows me the matric values configured in the remote device?
> >
> >
> > regards.
> >
> > Horacio.
> >
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Received on Thu Nov 19 2009 - 15:32:28 ART