I can't connect to my local ubuntu server

[monotux at gmail.com]

Hello everyone!

I installed ubuntu on my home server the other day, since debian sarge
didn't have recent versions of the madwifi driver (and everything broke
when I had to install new versions).
The installation went fine, everything worked, so I rebooted, installed the
drivers, configured the WLAN (yes, a file server running on wlan) and
everything worked - until I went back to my workstation and tried to
contact my server.

Both computers (all computers in this network) are behind a Netgear router 
and the server has a few ports forwarded to it (80, 22 etc), but nothing
more than than. The server uses DHCP.
Internet works on the server - I'm writing this mail on the server. 

But I can't connect to it! I have to go through my external DNS or
through my vpn (that uses the external DNS) if I want to use the
computer.
I don't think I've done anything stupid with it's network preferences,
but it just won't work, and I'm out of ideas on how to solve this :-(

This is my /etc/network/interfaces:

auto lo
iface lo inet loopback

mapping hotplug
        script grep
        map eth0

iface ath0 inet dhcp

auto eth0 ath0

These are my routes on the _server_:
oscar at kjell:~$ route -n
Kernel IP routing table
Destination  Gateway      Genmask         Flags Metric Ref Use    Iface
10.0.0.2     0.0.0.0      255.255.255.255 UH    0      0        0 tun0
192.168.1.0  0.0.0.0      255.255.255.0   U     0      0        0 ath0
0.0.0.0      192.168.1.1  0.0.0.0         UG    0      0        0 ath0


The routes on my _workstation_:
Kernel IP routing table
Destination   Gateway      Genmask         Flags Metric Ref    Use Iface
10.0.0.1      0.0.0.0      255.255.255.255 UH    0      0        0 tun0
192.168.1.0   0.0.0.0      255.255.255.0   U     0      0        0 ath0
0.0.0.0       192.168.1.1  0.0.0.0         UG    0      0        0 ath0

This is my /etc/resolv.conf on the server:
nameserver 192.168.1.1

Any ideas?


Oscar