Getting 'not supported' when trying to mount IPv6 NFS v3 server.

[Ben Greear <greearb@candelatech.com>]

So, the problem I reported earlier with failing to unmount was fixed
by the back-ported patch.

Now, another problem is reported by my user.  In this case, they are
trying to mount an IPv6 NFS server using NFSv3.  Kernel is 3.9.11+,
with patches to support binding mount points to local IP (v4/v6) addresses.

Some NFS over IPv6 mounts work fine, but some do not.  A reboot of the
NFS client machine did not fix the problem.

I have tried to reproduce the problem locally, but so far everything works fine
for us.

>From my own app's logs:

# mount -t nfs [4001:1::1:1]:/vol/vol1 /mnt/lf/RDnfse11c0 -o srcaddr=4001:1::1:201,vers=3
# requested NFS version or transport protocol is not supported

When this problem happens, I do not see any network traffic when trying to mount.


I am curious if anyone else has seen errors similar to this?


Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com