said by Legend7 :I have a 876 Cisco router with internal address on 10.10.10.1
said by Legend7 :I need to forward ports and allow traffic on ports 8100 and 2222 on an server connected to my network with 192.168.1.100
Are the 10.10.10.x and 192.168.1.x networks just two different arms on the same router, or is one arm NAT INSIDE and the other NAT OUTSIDE?
If the former, there's no ports to "open," so long as your 876 knows how to get between the two networks, you're in business.
If the latter, 2nd kamikatze
entirely.
A diagram of your layout, and the existing config of the 876 would also help immensely.
Regards