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On 06/02/2011 06:16 PM, Jeremy Chadwick wrote:
...
> Commercial-grade routers (read: Cisco, Juniper) all implement a form of
> ICMP prioritisation.  The router can (and will) discard/drop inbound
> ICMP packets directed at the router itself (e.g. a destination IP of the
> gateway) during high CPU utilisation.  Packets destined to a router
> itself (e.g. destination IP is the router) are handled very, very
> differently.
>
> This is why network engineers always recommend that when testing for
> network anomalies, the client (source IP) should attempt to speak to a
> web server, another box, whatever -- anything as long as it's not a
> router -- for its destination IP.

An easier solution: Use a freeBSD box as your router!  I *heart* Quagga.  ;)

Friday!

Rudy