Because portmap(8) dynamically assigns the mountd(8) port, how would
one write a pass rule in pf for mountd(8) traffic? My problem is that
every time mountd(8) is re/started, it operates on a different port and
my fixed pf rules block the mount protocol and, consequently, my
clients cannot mount an NFS share.

I read through RFC1094 "NFS: Network File System Protocol
Specification" and RFC1057 "RPC: Remote Procedure Call Protocol
Specification" looking for ways to statically bind the mount protocol
to a port number. It doesn't look possible.

-pachl

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