lkml.org 
[lkml]   [1996]   [Nov]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: kernel not processing ICMP Redirects
From
Date
-----BEGIN PGP SIGNED MESSAGE-----

matthew@crocker.com (Matthew S. Crocker) writes:
|
| My linux box (actually several of them) which are running 2.0.22 &
| 2.0.23 (redhat 3.0.3) are not processing ICMP redirects from my cisco
| 2501.

Are you sure?

I'm not really familiar with the routing code in the current kernel,
so someone may yet correct me. However, judging from the 2.0.24
source, recent kernels *only* store ICMP redirects in the route cache,
not in the routing tables.

As far as I know, there's no standard utility to view the route cache,
but you can "cat /proc/net/rt_cache". Any routes with the RTF_DYNAMIC
bit (0x10) set in "flags" are the result of a redirect.

Even though these entries won't appear in the routing table, they'll
still be used.

Kevin <buhr@stat.wisc.edu>

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3
Charset: noconv
Comment: Processed by Mailcrypt 3.4, an Emacs/PGP interface

iQBVAwUBMnqHeomVIQW1OgXhAQGUPAIAgDJOc+TKxvXDxmKjldY4ISRMDYgX7rEC
WNbe0gUfRY3PN5V+yF4kibkxZXVTbkO7cx2DC2mPYxtpERJfKNmsLw==
=YriN
-----END PGP SIGNATURE-----

\
 
 \ /
  Last update: 2005-03-22 13:37    [W:0.107 / U:0.844 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site