Leopard - Forwarding ports with Internet Sharing

[superczar]

My Leopard machine acts as the Internet gateway for the rest of my network since I use a USB based EVDO dongle for my Internet connection

->-(ppp)- Internet on Mac (en0)->- Router --> LAN systems

Now I need to forward some ports including port 80 from the Mac ppp connection to the Router (one of my LAN systems runs ubuntu and acts as a webserver + some other services)

Unfortunately, the Internet sharing application in Leopard is quite crippled and barely allows me any configuration options

Any pointers please?

 

[GroovyLinuxGuy]

I think you may have some of your network backwards. I would use your Ubuntu box as the Webserver/router and using iptables NAT your internet connection for the rest of your network.

But thats just me

cheers

 

[superczar]

actually there is a sepcific reason why I have it this way
The ubuntu box is also a huge file server for the rest of the network and also has only one Ethernet interface
Since the gateway device would connect to the WAN side of the router, I'd rather use the Mini