Hi
I have had a similar promlem with redhat:
( Linux as server, workstation AIX as clients)
I have not the Linux now in my hands, but, if I remember, you can use default values in client-AIX ( will be used
version 3 and TCP protocol).
Changes from default, you have to set in exported directory on server :
if there is a flag about "insecure port", you have to
allow server to listen to this insecure ports.
Useful tools:
from client AIX
#showmount -e LinuxServer
#nfsstat -m
ciao