config option to stop static route creation ? 1

[DonDavisFCB]

I think there is an "no" option to stop aix from creating a static route entry for every node it talks to. i just can't remember it. Does anyone know what it is?
Thanks

 

[nwardez]

Hi,

You can use "no -o route_expire=1" to have unused route entry removed after "route_expire" time (in minute, I think) of inactivity

 

[Morsing]

What you're looking for is the tcp_pmtu_discover (and similar for UDP).

What it actually does is that it creates statically paths if it communicates to a hosts where the path doesn't support the mtu size the other hosts uses. This is also related to something called black hole something (can't remember).

Just make sure that there aren't any routers in between that will drop the packets.

no -o tcp_pmtu_discover=0
and
no -o udp_pmtu_discover=0

is the answer to your question.

Cheers Henrik Morsing
IBM Certified AIX 4.3 Systems Administration