There is a correction to my summary by Timothy Lindgren who said:
Versions older then 5.5 use RPC ports in the 3901xx range.
You can verify this using rpcinfo -p (hostname).
These ports are static, thus can be made
configurable for firewall traffic.
This archive was generated by hypermail 2.1.2 : Fri Sep 28 2001 - 23:14:03 CDT