NFS + ssh (NFS HOWTO Question)

Hello,
I have a quick question about the NFS Howto. There is something in it
that I do not understand. I'm working on an ssh tunnel for NFS.

From http://nfs.sourceforge.net/nfs-howto/security.html
--------------------------------------------------
For example, to have statd broadcast of port 32765 and listen on port 32766, and mountd listen on port 32767, you would type:

# statd -p 32765 -o 32766
# mountd -p 32767

[...]

lockd is started by the kernel when it is needed. Therefore you need to pass module options (if you have it built as a module) or kernel options to force lockd to listen and respond only on certain ports.

If you are using loadable modules and you would like to specify these options in your /etc/modules.conf file add a line like this to the file:

options lockd nlm_udpport=32768 nlm_tcpport=32768
--------------------------------------------------

In the above section it says how to force both lockd and statd onto
certain ports. But then a little further down on that same page, where it talks about NFS over ssh, it has this seemingly contradicting information:

--------------------------------------------------
It is not possible to ask statd or the locking manager to make requests to a particular port for a particular mount; therefore, any locking requests will cause statd to connect to statd on localhost, i.e., itself, and it will fail with an error. Any attempt to correct this would require a major rewrite of NFS.
--------------------------------------------------

I do not understand what this means. First I'm looking at the
command-line (and module) options to set particular ports, and then further on the same page, it says "It is not possible to ask statd or the locking manager to make requests to a particular port for a particular mount".

Could somebody elaborate for me? What am I missing? (Or is the
section on ssh outdated?)

Any help is greatly appreciated.

Thanks,
Derek Simkowiak

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