> Before, when we were on a Class C, everything worked ok. Now,
> Name lookups will not work. Name lookups with nslookup are ok,
> but applications are broken.
>
> Example:
>
> # netstat -rn
> Kernel routing table
> Destination Gateway Genmask Flags Metric Ref Use Iface
> 10.2.3.0 0.0.0.0 255.255.255.0 U 0 0 5 eth0
> 10.2.0.0 0.0.0.0 255.255.0.0 U 0 0 6 eth0
These two routes don't make sence, somewhere you are still setting up the
class C network. I can't see where it breaks things, but if you are now using
a class B network, find and remove the first of these routes.
I have a machine which with IP aliasing is in 3 different networks (class B,C
and D/subnetted), and the linux routing is able to sort it all out, your
setup should work.
-- Jon. <jon@gte.esi.us.es, http://www.esi.us.es/~jon>