Shorewall users - Jul 2004 - Hosting Starcraft games

First let me say that I am not subscribed to the list, so please
send me a copy of any replies.

I have been using Shorewall for years as the firewall for my LAN.
It has been awhile since I played Starcraft and hosted games.
Back then I was using the 2.2 kernel with the loose_udp patch and
no firewall.  All worked fine.

I stopped playing Starcraft a while back and later upgraded my 
kernel to 2.6 and nettables.  Now I can play Starcraft but I can''t
host games.  After Googling around, I found the correct iptables
commands to allow me to host games.

First, I entered this in Shorewall rules file:
#ACTION   SOURCE          DEST            PROTO   DEST    SOURCE     ORIGINAL 
RATE   USER
#                                                 PORT    PORT(S)    DEST     
LIMIT
DNAT      inet2   lan4:192.168.4.4:6112   udp     6114

which will map incoming port 6114 to my local PC (ip=192.168.4.4) 
using port 6112.  However I do not know how to enter the following 
command into Shorewall''s tables.

iptables -t nat -I POSTROUTING -p udp -s 192.168.4.4/32 --sport 6112 -j SNAT
--to $MY_INET_IP:6114

Of course, $MY_INET_IP is my static ip address.  This command
re-maps all output from my local PC on port 6112 to the firewall
port 6114.  As I understand it, with this scheme I can have
multiple PC''s hosting Starcraft by using different port numbers.

My question is: How do I enter the iptables command into
a Shorewall table?

Thanks in advance,
Bill

Bill Shirley wrote:
> 
> My question is: How do I enter the iptables command into
> a Shorewall table?

http://shorewall.net/shorewall_extension_scripts.htm

-Tom
-- 
Tom Eastep    \ Nothing is foolproof to a sufficiently talented fool
Shoreline,     \ http://shorewall.net
Washington USA  \ teastep@shorewall.net