nfs kernel server

[Philipp Lehman <lehman@gmx.net>]

After installing the nfs kernel server, syslogd is flodded with
messages like this one:

rpc.mountd: dump request from 192.168.1.1 
last message repeated 31 times
last message repeated 61 times
last message repeated 61 times

192.168.1.1 is the host running the nfs kernel server. What does
"dump request" mean and how can I fix this? The server seems to
work most of the time but would reject mount requests
occasionally. I'm at a loss here, how do you debug this beast?
Any hints appreciated.

-- 
Philipp Lehman <lehman@gmx.net>