From: Bob Sinclair (bob@bobsinclair.net)
Date: Mon Nov 05 2007 - 21:53:09 ART
George Goglidze wrote:
> Hi,
>
> I've searched all the internet, google, doccd and whatever I could find
> about that.
>
> But no mention you can find out eigrp AS by debugging.
>
> I guess if I have to make neighbor relationship with eigrp of BB router,
> there will AS number included in the task, otherwise it will be no point. At
> least I hope so. :)
>
> otherwise I'll have to try all the AS-es from 1 to 65000 ..... :)))))
>
In the spirit of "where there is a will there is a way" here is one
(admittedly far out) way to detect the EIGRP AS on the far side. The
output below is from the following command:
debug ip packet dump 102
access-list 102 permit host 172.16.26.2 host 224.0.0.10
The far side is configured for 3 EIGRP AS numbers: 20, 30 and 40.
Note the underlined hex values:
R6#
*Mar 1 00:06:54.547: IP: s=172.16.26.2 (FastEthernet0/0), d=224.0.0.10,
len 60, unroutable
07B67EC0: 0100 5E00000A ..^...
07B67ED0: CC023BA3 00000800 45C0003C 00000000 L.;#....E@.<....
07B67EE0: 0158128E AC101A02 E000000A 0205EEAE .X..,...`.....n.
07B67EF0: 00000000 00000000 00000000 _0000001E_ ................
07B67F00: 0001000C 01000100 0000000F 00040008 ................
07B67F10: 0C040102 ....
R6#
*Mar 1 00:06:57.139: IP: s=172.16.26.2 (FastEthernet0/0), d=224.0.0.10,
len 60, unroutable
07B67D80: 0100 5E00000A ..^...
07B67D90: CC023BA3 00000800 45C0003C 00000000 L.;#....E@.<....
07B67DA0: 0158128E AC101A02 E000000A 0205EEB8 .X..,...`.....n8
07B67DB0: 00000000 00000000 00000000 _00000014_ ................
07B67DC0: 0001000C 01000100 0000000F 00040008 ................
07B67DD0: 0C040102 ....
*Mar 1 00:06:57.799: IP: s=172.16.26.2 (FastEthernet0/0), d=224.0.0.10,
len 60, unroutable
07A01EC0: 0100 5E00000A ..^...
07A01ED0:
R6#u a CC023BA3 00000800 45C0003C 00000000 L.;#....E@.<....
07A01EE0: 0158128E AC101A02 E000000A 0205EEA4 .X..,...`.....n$
07A01EF0: 00000000 00000000 00000000 _00000028_ ...............(
07A01F00: 0001000C 01000100 0000000F 00040008 ................
07A01F10: 0C040102 ....
Enjoy! ;-)
--Bob Sinclair CCIE 10427 CCSI 30427 www.netmasterclass.net
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:28 ART