FreeBSD NFS server responds with wrong address

Loren M. Lang lorenl at
Mon Nov 19 20:40:54 PST 2007

I was attempting to do an NFS mount from a FreeBSD server to a FreeBSD
client over IPv6 and received the error "NFSPROC_NULL: RPC: Timed out."
After doing a packet trace, I noticed that the FreeBSD server was
indeed responding to both a Portmap GATADDR call and a NFS NULL call,
but in both cases it was coming from the IPv6 address closest to the
client making the call and not the address the call was issued to.  Why
is this happening and how do I make the server respond with the correct

The server is FreeBSD 6.2-RELEASE-p7.
Loren M. Lang
lorenl at

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