Comments on: What? You won’t tell me the K values? No problem.

By: shivlu jain

shivlu jain — Wed, 17 Mar 2010 12:18:52 +0000

Thanks for showing the hidden things. Gr8

By: MCL.Nicolas

MCL.Nicolas — Thu, 26 Nov 2009 14:28:48 +0000

Thanks Mr Evil ! “grin”

By: ronaldobf

ronaldobf — Wed, 25 Nov 2009 22:19:54 +0000

Very cool!
Cisco hidden commands… maybe we have many.

By: Sandman

Sandman — Wed, 25 Nov 2009 15:37:47 +0000

in the lab exam you can also use all 1’s for the K values.

By: GFC_CISCO

GFC_CISCO — Wed, 25 Nov 2009 11:33:05 +0000

Yeah Scott, i saw your 2008 VOD about EIGRP, and there you show this awesome debug !!

thanks guys for another great post !

By: Scott Morris, CCIE #4713

Scott Morris, CCIE #4713 — Tue, 24 Nov 2009 14:47:14 +0000

01:23:07: IP: s=136.1.45.4 (FastEthernet0/1), d=224.0.0.10, len 60, rcvd 2, proto=88
0F8000E0: 0100 5E00000A ..^…
0F8000F0: 00444444 44440800 45C0003C 00000000 .DDDDD..E@.< ....
0F800100: 0158239B 88012D04 E000000A 02050EC9 .X#...-.`......I
0F800110: 00000000 00000000 00000000 00000001 ................
0F800120: 0001000C E1010101 0100000F 00040008 ....`...........
0F800130: 0C040102 ....

The other thing to add to this wonderful output is that the 5th “word” (32-bit chunk) following the destination address is the AS number.

Just in case you don’t know your backbone router’s ASN and you are getting sick of the mismatched AS messages!

By the way, 224.0.0.10 in hex is E000000A. In this case, the fifth word after that is “00000001″ so we know we’re using “router eigrp 1″ for the example!

Back to vacationing soon because Internet is REALLLLLLLLLLLLLYYYY slow here. Adieu!

Scott

By: MCL_Nicolas

MCL_Nicolas — Mon, 23 Nov 2009 14:55:09 +0000

Thanks for the tips !!!!

i think Scott has a similar tips to get the OSPF or Eigrp process ….

In case Scott could remind me how to retrieve the OSPF Process or the EIGRP Process

By: Sudeera

Sudeera — Mon, 23 Nov 2009 04:08:17 +0000

Nice post…
I think in the same way we can capture the EIGRP AS Number and any clear text password as well.

AS number is the 32-bit value before 32-bits (for Type and Length) from the K-values. So here it is byte numbers 0F80011D to 0F80011F (last output) which is 00000001. So it is EIGRP AS 1 that Anthony was testing with. Am I correct, Anthony?

By: Steve Shaw

Steve Shaw — Sun, 22 Nov 2009 17:35:40 +0000

Thanks Keith and Anthony!

I’ll cross my fingers and hope this scenario pops up on my troubleshooting section when I take my first lab attempt in February.

By: CCIE Pilot

CCIE Pilot — Sun, 22 Nov 2009 08:19:21 +0000

Amazing!