Re: [NFS] nfs-over-tcp still needs udp ports? (SLES 11)

[Leonardo Chiquitto <leonardo.lists@gmail.com>]

> Now when the NFS client is running SLES 11 with its kernel 2.6.27,
> the NFS server tries to make UDP connections from its ports 111 and
> 700 to different ports on the client.
>
> If the client is running SLES 10 with 2.6.16, those connections are
> not tried from the server, no matter if the server runs 2.6.16 or
> 2.6.27.
>
> So I've two questions:
> 1) Should nfs-over-tcp still use any UDP ports at all?
> 2) What has been changed in the client code between 2.6.16 and 2.6.27
>   that could cause this behaviour?

By default it is now using UDP to connect to mountd.

> Is there a way to prevent those UDP connects?

Yes, add "mountproto=tcp" to your mount options.

Regards,
Leonardo

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