Hi,
I am running Mandrake 8.2 and have been trying to hook up my DSL with Internet connection sharing over my LAN. I had been playing with Heartbeat so I already had two Netgear FA311 ethernet cards installed and everything seamed to be working fine. The DSL installed no problem and my LAN was up and working fine. So, I went to the Mandrake control center and attempted to activate the Internet connection sharing. It failed and gave me a message that there was a potential hardware conflict in eth0.bak? So I checked my Ethernet cards in Hardrake only to find they were not listed under "Network Device Cards" but rather in "Other Devices?". I did a cat /proc/pci and everything looked OK. Trying to solve this quickly I re-installed two link-sys LNE100TX cards only to find they did not show up correctly in Harddrake either yet they show up correctly on the pci buss and seem to be working fine. That is except for the internet connection sharing. I suspect in order for the internet connection sharing routine to run correctly the cards have to be detected in Hardrake. Any ideas? Can I go in manually and fix this? Can I just buy different cards to solve this? Any input would be greatly appreciated. Thanks-
Bill Morse
Opera Systems Inc.

Bill,

Although I run Mandrake I must admit to never having used any og the built in utils to set up cards / networking, etc.

It is relatively straight forward however to set share you internet connection. What you need is a basic firewall. If you like you can shre the connection without any protection from the net effectively letting everything in and out but a simple firewall would be better.

The firewall provides the sharing using a technique called ip masquerading (or if you have a static ip address network address translation). If you desire only to share the connection check out http://www.netfilter.org in the HOWTO section. This link http://www.netfilter.org/documentati...O-4.html#ss4.1 shows how to set up connection sharing and this link http://www.netfilter.org/documentati...g-HOWTO-5.html
shows how to give yourself some protection.

You would need to substitute the ppp0 for whatever eth card you are using to get on the net but other than that it should work ok.

If you are feeling a little more adventureous you may want to take a look at http://www.atomicmpc.com.au/files/atomic-wall.zip this link for a more detailed firewall. It is resonably well documented but you will still need to do a little reading to figure it all out.

Hope this helps

Rich