SMC Networks Barricade SMC2404WBR - Manual (Page 123)

If you want to setup more than one PC Anywhere host on your LAN, then
you would need to configure your PC Anywhere host to listen to different
port numbers, (i.e.: 5641/5642). You can find out how to change these ports
in the program’s Help wizard are on Symantec's web site.
Q. How do I set up the router to work with Netmeeting?
A. MS Netmeeting is a router-unfriendly application simply because of
that fact that it uses dynamic ports - meaning that every time the application
is opened, it is using different ports to operate. Hence, this application does
not work well behind any NAT firewall. Some customers have been able to
get this application to work by opening up all the ports for certain triggers.
This is definitely not recommended by SMC, but we can provide you with
the information these customers have given us. Beyond this, there is nothing
else that can be done. If this info does not solve your problem, please contact
Microsoft.
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Triggers = 389, 522, 1503, 1024, 1720, 1731
Incoming ports (the same for all triggers) = 1-64535
All the ports are TCP. You can also try putting your machine in the DMZ
(through Misc. Items) and make sure that you have upgraded the firmware on
the router.
Q. I cannot DCC send or access some other functions of IRC.
A. Here is the information that we have on IRC.
IRC DCC / IRC DCC .
The IRC port is usually 6667, but is sometimes 7000
OUT TCP 6667
or
OUT TCP 7000
IN TCP 113
IRC Chat