network access prob(can access r.PC via Hostname but not ip)

[mexus]

I have a tap connection between Ubuntu 10.04 an DD-WRT.
Ubuntu network: 192.168.0.1-192.168.0.229
Server: 192.168.0.1
(lets call it A network)

DD-WRT network: 192.168.0.230-192.168.0.254
Server: 192.168.0.253
(lets call it B network)

My problem is that I can ping A <=> B but I can access rdp, samba, .... only with the host name not IP.
For example
hostname network ip
USER1 A 192.168.0.6
USER2 B 192.168.0.230

USER1 can access (samba, remote desktop connection) USER2 if i type the USER2 (hostname), but If I type the IP of USER2 I get timeout.

It's the same the other way around.

Any Ideas?

Sorry for my english

[krzee]

you have conflicting subnets.
one of the networks needs a new subnet (preferably both if you plan on sharing both lans and having more clients as well)