Default routing behaviour of Multi-Homed(NIC'd) 11i Systems

[Alzhy]

On Solaris systems, to make sure multi-homed systems (or multi NIC'd to different LAN's of course) do not route networks, we have a file /etc/notrouter.

Is there any equivalent insurance on HPUX11i systems? What is the default routing behaviour of multi-homed systems? Is it enough to just ensure the routing daemon is not running so we're assured the networks will not be routed but the server?

[Duncan Edmonstone]

By default 11i boxes with >1 NIC won't route if gated is not running.

However they will forward traffic sent to them (even though they don't advertise this fact) - you can prevent them from even doing this using ndd:

ndd -set /dev/ip ip_forwarding 0

you can make this change permanent across reboots by editing the file /etc/rc.config.d/nddconf - the format of the file is self explanatory.

HTH

Duncan