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Double router in a network and cached routes



Hi all

I have a problem with the cache of routing in a single interface machine
in a network with tho routers (one is only a router and the other is a
firewall).

Routing in all computers is set to the router A, who has manual entries to
a lot of internal networks. This router A has a default gateway for
router B (the firewall) to reach the internet.

All is good except when a machine (client machine) in a network reached
using router A is down (failed machine). router A then tells "client
computer" who wants to send packages to the "failed machine" to route
then using router B (the firewall). So, the "client machine" adds a
routing entry in its table visible only with "route -C", but i can not
delete that entry. I use "mon" to check that computer a lot of times, so
the routing cache about the failed machine is cleaned never. If i stops
the mon daemon, the routing cache cleans automatically some time after,
and i can re-start mon again without problems.

How can i clean the routing cache manually? Or, can i force shortest time
for the cache to be cleaned?

Thanks a lot.

-- 
Andres Seco Hernandez    -     AndresSH@alamin.org
MCP ID 445900     -     http://andressh.alamin.org
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