port forward bug

[Guest]

I've PC-1 with 2 nics for internet connetion sharing, addresses are
LAN=192.168.0.1 & WAN=201.x.x.x

Then i've PC-2 (192.168.0.2) with a webserver, so I used the firewall
settings to forward port 80 to it. Outsider can access PC-2 webserver, so
201.x.x.x:80 works.

The problem is LAN PCs (192.168.0.x) just can't connect to 201.x.x.x:80, but
they can access it using 192.168.0.2:80, why? They can ping 192.168.0.1 &
surf the net easily..

 

[Guest]

FYI, if the LAN PCs change their gateway IP (another ICS machine with
different WAN address), the problem solved but ppl just can't afford multiple
DSL lines at home!

 

[Chuck]

I've PC-1 with 2 nics for internet connetion sharing, addresses are
LAN=192.168.0.1 & WAN=201.x.x.x

Then i've PC-2 (192.168.0.2) with a webserver, so I used the firewall
settings to forward port 80 to it. Outsider can access PC-2 webserver, so
201.x.x.x:80 works.

The problem is LAN PCs (192.168.0.x) just can't connect to 201.x.x.x:80, but
they can access it using 192.168.0.2:80, why? They can ping 192.168.0.1 &
surf the net easily..

Dan,

You answered the question yourself in a way.

To the other computers on your LAN, 201.x.x.x:80 is outside your LAN, and the
gateway to that address is 192.168.0.1 - whichever ICS server they get Internet
service thru. If you put them on a separate LAN (a gateway different than the
ICS server serving 201.x.x.x:80), their gateway takes the traffic, forwards it
from the LAN to the WAN, and it goes to the WAN of the ICS gateway serving
201.x.x.x:80.

Apparently with ICS, it doesn't forward traffic outwards, then apply port
forwarding and forward the traffic back in again.

 

[bumtracks]

might try using a name via one of the free services at
http://www.dyndns.org/services/dns/