[Openswan Users] How many connections per NAT'd address?

[Rick Romero]

I have a OpenSwan VPN that's been working beautifully with XP SP2
clients for a couple weeks now.   I have one partner who have multiple
machines in his network that need to access our VPN.   Our VPN is on the
public network, but his 4 machines are all behind a firewall.   

Yesterday he was getting a 'security negotiation timed-out' on two
machines, but one was connected just fine.   These machines had worked
in the past, and no changes have been made.

Are we limited to one at a time, or is something else going on?

Thanks

Rick