[Samba] SAMBA Server

[Kevin Smith]

I was wondering is  there a way to block client connections to a Samba
server. Id like to do this so I can backup my samba files on a cdrom where
the r/w is on the a client machine. I want it to use the full bandwidth
while doing this so I don't end up with coasters. I know I could use the
firewall to block it. Just a thought, is I change the Hosts Allowed in
smb.conf to the IP of the backup machine hmm. Anyway any other suggestions
are welcome. 

Thanks 
Kev