1. Server name - add one at the time, hence sudd1, sudd2
2. IP address of your computer BEHIND the router, the one you established while setting up static address.

AND/OR

If you using a router, then you need to open up a couple ports including 2 or 3 port ranges.
First of all, you need to assign a static Lan IP to your PC.
Then you need to configure your router (and your firewall as well) and open up / forward following Ports :
TCP 47626, TCP 6073, TCP 2300-2400, TCP 28800-28900.
In some cases you also need to open / forward the following :
27900 (Master Server UDP Heartbeat)
28900 (Master Server List Request)
29900 (GP Connection Manager)
29901 (GP Search Manager)
13139 (Custom UDP Pings)
6515 (Dplay UDP)

AND/OR

Open range port from 2302 to 2400 for tcp and udp and try to play with same pc = same ip config ex
If you open port for your pc ip adress with end 0.2 so pc number 2 i guess play RWM with pc2+ ip0.2
Use mac adress to fix it the pc you play is always 0.2 at end

And more here
http://www.sudden-strike-maps.de/phpBB2/viewtopic.php?t=6997