routing table with more than one NIC

[Dermot Beirne]

Hi,
I have a HPUX 10.20 box with two network cards. Each in on a different network. Lan0 is on the 193.178. network and Lan1 is on the 10.149. network.
When I view the routing table, it only shows me LAN1 routes. Can i specifically ask for the routing table for LAN0?
Also, how do I add routes for the LAN0 network, so they use LAN0 and only appear as if they came from LAN0 (i.e. 193.178. network). New routes are defaulting to LAN1's network.

I'd appreciate any help.
Thanks,
Dermot

[Sridhar Bhaskarla · Accepted solution]

Hi,

It is because the default route is specified through the IP of lan1.

You can define static routes. For ex., if there is a router 193.178.x.1 that can route to another network (say 200.200.200.0 then you would add the route

route add net 200.200.200.0 netmask 255.255.255.0 193.178.x.1 1

So all the packets destined to the network 200.200.200.0 will go through lan0.

To make it permanent, you would add the above into your /etc/rc.config.d/netconf.

ROUTE_DESTINATION[1]="200.200.200.0"
ROUTE_MASK[1]="255.255.255.0"
ROUTE_GATEWAY[1]="178.x.1.1"
ROUTE_COUNT[1]=1

-Sri

[Dermot Beirne]

That did the trick. Thanks very much for your help.
Dermot.

[rick jones]

When/if you are able to update to 11.X, instead of having to add static routes (which you would still be able to do...) you could use ndd to set ip_strong_es_model to a value of "1" at which point route lookups include the source IP address. This tends to mean that you can have things like per-interface default routes etc etc.

ftp://ftp.cup.hp.com/dist/networking/briefs/annotated_ndd.txt