Multiple Netmeeting Sessions

[Norman Zhang <norman.zhang@xxxxxxxxxxxxxxxxxxxx>]

Hi,

I was wondering if it is possible to setup iptables to allow multiple 
Netmeeting sessions originated from internet to local net? So far I map 
the port in /etc/shorewall/rules

DNAT net loc:10.0.0.10 tcp 1720
DNAT net loc:10.0.0.10 tcp 1503

But it only goes to a single machine? Or do I need gateway for this?

Regards,
Norman