Comment # 26 on bug 1160035 from Sebastian Kuhne

(In reply to Neil Brown from comment #23)
> Thanks for the new data.
> 
> The screenshot of yast shows you setting the NFS version as "nfsvers=4".
> This does *not* mean 4.0, it means the highest 4.x which is available.
> If you really want 4.0, you need to us "nfsvers=4.0"
> 
> As you say, the "mount -v" output does strongly suggest that IPv6 isn't
> working and IPv4 is.  I wonder if this could be a firewall problem.
> Can you try disabling any filewall on either client or server and try again?
> 
> It still might help to get a network trace taken during a failed mount
> attempt.
> 
> tcpdump -s 0 -w /tmp/nfs.pcap port 2049 or icmp &
> 
> 
> Richard: are you using IPv6 at all?  Is it possible that IPv6 attempts fail
> for you, but IPv4 attempt work?

I have disabled both firewalls, on the server and on the client. No change. The
connection gets established after the three minutes timeout with IPv4.
I am attaching the tcpdump in a second.