Multiple NICs routing question
Olivier Nicole
on at cs.ait.ac.th
Fri Oct 10 02:18:48 UTC 2008
>I've a server box with four NICs addressing different subnets:
>
>NIC1: one class c subnet of same class b network
>NIC2: another class c subnet of same class b network
>NIC3: local unrouted network
>NIC4: local unrouted network
>
>In the current configuration I use a default gateway (and no routing
>daemon) in the subnet addressed by NIC1. Now of course, if a client in an
>arbitrary different class c subnet contacts the server using the ip
>address of NIC2, it gets a reply from NIC1.
You should give more details about your configuration.
If any client on the class B on NIC2 can contact your server, you must
configure the NIC for the class B.
The routing stack will take charge of excluding the class C on NIC1
from the class B on NIC2.
It's very bad that the client that connects via the NIC2 has a subnet
of class B and that the NIC2 is configured for class C only.
If you configure:
NIC1 192.168.1.1 255.255.255.0
NIC2 192.168.2.1 255.255.0.0
Client 192.168.127.23 255.255.0.0
it should work.
Olivier
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