> I get "dispatch protocol error: type 20 plen 136" every time
> the key gets regenerated on the server when sshing with stock NetBSD
> ssh to a Solaris server, for example.  

The current secure shell protocol drafts include a feature allowing
mid-connection rekeying initiated by either party.  The version of
openssh I just looked at (OpenSSH_2.3.2 -- what I had handy..)  does
not initiate this rekeying and may not correctly handle when a peer
triggers this rekeying.

						- Bill