NFS & firewall problems

I have two machines in the same physical location I need to network. One is using wired connection to router (it has wireless as well), the other is just using wireless. Both have Internet connectivity. Trying to run NFS server from wireless machine. Using yast nfs modules for both. I have all network interfaces set to external zone and nfs client & server added to allowed services for external zone. When I go to yast -> nfs client -> add -> choose to scan networks, it only finds the nfs server if both machines are not running the firewall. Is this a broadcast issue? I thought the yast nfs modules were supposed to take care of that.

Should there be ports defined in the client machine’s /etc/sysconfig/SuSEfirewall2.d/services/nfs-client?

  GNU nano 2.2.2                                         File: /etc/sysconfig/SuSEfirewall2.d/services/nfs-client                                                                                        

## Description: Firewall Configuration for NFS client.
# Only the variables TCP, UDP, RPC, IP and BROADCAST are allowed.
# More may be supported in the future.
# For a more detailed description of the individual variables see
# the comments for FW_SERVICES_*_EXT in /etc/sysconfig/SuSEfirewall2

## Name: NFS Client
## Description: Opens ports for NFS client to allow connection to an NFS server.

# space separated list of allowed TCP ports

# space separated list of allowed UDP ports

# space separated list of allowed RPC services
RPC="portmap status nlockmgr"

# space separated list of allowed IP protocols

# space separated list of allowed UDP broadcast ports

the server machine’s nfs-kernel-server looks exactly the same.

server machine’s /etc/sysconfig/SuSEfirewall2
Won’t let me post cuz it exceeds the max character limit. Let me know relevant sections to post.