how to atalk/nfs between linux <-> mol

[Anne et Bertrand]

I can ssh, ftp, and even do remote X sessions from linux clients in 
Panther running in mol.

But Atalk doesn't work : eth0 isn't available in osX and tun0 doesn't 
seem to be accepted by atalkd on the linux side.

On the NFS front :
I've set up a nfs share on the linux side in /etc/exports (in fact, 
Mandrake did, via a nautilus context menu) : 
/home/bertrand/Desktop/Atalk_share *(ro,all_squash,sync)

nfs is running on the linux side :
[bertrand@localhost bertrand]$ ps aux | grep nfs
root      1523  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1524  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1525  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1526  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1527  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1528  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1529  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1530  0.0  0.0     0    0 ?        SW   12:26   0:00 [nfsd]
root      1544  0.0  0.3  1688  476 ?        S    12:26   0:00 
rpc.mountd --no-nfs-version 3

But I can't access this share on the Panther side : it doesn't appear in 
the Network place in the finder.

Any idea ? Do I need some software on the Panther side ?

Thanks,
Bertrand Dekoninck