Binding ports for NFS

[redhatdude at bellsouth.net]

Hi,
Let's see if I have more luck with this question and somebody answers  
it.
I'm trying to share a folder using NFS. The problem I'm having is  
with the ports some of the daemons use and the firewall. The ports  
for portmapper and nfsd remain the same all the time and I can open  
them in the firewall. However, daemons such as lockd and mountd  
change every time I load the nfs service. What I'd like to do is bind  
these daemos to a specific port that would remain open in the  
firewall. How can I accomplish that?
Thanks a lot for any help,
EJ