[c-nsp] 3750 high cpu from icmp

Gary Stanley gary at velocity-servers.net
Mon May 7 14:19:06 EDT 2007


At 02:03 PM 5/7/2007, Jared Mauch wrote:
>On Mon, May 07, 2007 at 05:58:02PM +0200, Brian Turnbow wrote:
> > Besides redesigning to avoid icmp redirects anyone have any ideas?
>
>         Can you make sure that all your routers have the following
>on their "IP" (routed) interfaces:?
>
>         no ip redirects
>         no ip proxy-arp
>
>         This should help solve the problem.
>
>         These two should really be default these days.
>
>         - Jared

I've seen this same problem on 3550's + Microsoft machines. I've 
applied both of these and the high cpu usage went away.

I believe microsoft windows 2k/2k3 default ip redirects to 1, but i'm not sure.




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