Port Forwarding to multiple PC's to play Total Annihilation on STEAM

[BigE_1235]

Is there a way to select multiple PC IP addresses to forward ports to after creating a port forward rule, or do I just have to create multiple rules with the exact same info for each PC IP address?

[antinode]

> Is there a way to select multiple PC IP addresses to forward ports to
> after creating a port forward rule, [...]

   It's impossible/nonsensical to forward one port to multiple
destinations.

> [...] or do I just have to create multiple rules with the exact same
> info for each PC IP address?

   It's impossible/nonsensical to forward one port to multiple
destinations.

[BigE_1235]

Maybe I need to clearify the situation.

1. I have STEAM on my home theater PC and a laptop.

2. My Son has Steam on his desktop PC and lives in the same home, same home network.

3. My oldest Son lives in another area of the state.

I want to play Total Annihilation Game via STEAM with all three of us.

According to portforward.com, this is the info I needed to do this:

Total Annihilation Steam
TCP	2300-2400, 27015-27030, 27036-27037, 47624
UDP	2300-2400, 4380, 27000-27031, 27036

Any ideas as to how I get this to work on all PC's involved whether those PC's are on the same local home network or across the internet?

Thanks in advance!

[antinode]

> Any ideas [...]

   Not if you can't specify different (external) port numbers for one of
the systems on the LAN.

   I'm ignorant of the reasons for requiring tens or hundreds of ports
to be forwarded to make this stuff work, or how you might be able to
tell some part of it to use some different set of ports.  To me, it all
looks like horrible design, but what do I know?