5.1 ssh hang (i have rtfm and googled) long

[jon]

generic install of 5.1 release. sshd version
OpenSSH_3.6.1p1. i have /etc/hosts set up . all
systems are "RFC 1597" networks and i do not have a
bind server. every connect takes over a minute to
complete; using passwords.

(ssh -vv host) 
stalls at 
"debug1: got SSH2_MSG_SERVICE_ACCEPT"
looks up address, gets no response, times out and lets
me in.

ssh server is running w/ "sshd -4 -u0"

man sshd 

"-u0" 
may also be used to prevent sshd from making
DNS requests unless the authentication mechanism or
configuration
requires it.  Authentication mechanisms that may
require DNS
include RhostsAuthentication, RhostsRSAAuthentication,
HostbasedAuthentication
  
changes to sshd_config (on server)
	PasswordAuthentication yes
	VerifyReverseMapping no
no changes to ssh_config (on client)

i have tried all suggestions below and a few more,
that i could not find again.  
http://www.derkeiler.com/Mailing-Lists/FreeBSD-Security/2002-07/11027.html
http://www.mail-archive.com/ssh@clinet.fi/msg06861.html
http://www.geocrawler.com/archives/3/151/2002/10/0/10045250/

thanks to all 
jon

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