I need help finding the correct settings here. I want a computer which uses a PPP internet connection on DSL, to also be able to do local file sharing to my laptop. Currently I can connect to the internet, or I can share files from my hard disk over my local network, but I can't do both at the same time. Here's my setup and how I want things to function: Code: connect to net via PPP DSL share files locally to Mac B Mac A DSL modem | \ | __________Mac B \ | / access Mac A's shared disk \ | / connect to net via neighbor's airport ethernet hub (aka switch) Things I've tried: 1) When Mac A's network is set to have TCP/IP use PPP, then I can connect to the net via DSL, but it cannot do file sharing to Mac B. 2) When both Mac A and Mac B are set to have TCP/IP use DHCP, then Mac A can share its files to Mac B, but it cannot connect to the net via DSL. 3) If Mac A connects to the net via DSL using PPP and then I turn on file sharing, and then on Mac B I manually type in the address that Mac A's file sharing screen says it can be reached at. That results in Mac B connecting to Mac A's shared disk by networking over the internet! Which is obviously out of the question. 4) At some point (I forget what the settings were) I managed to have to Mac A sharing its files with Mac B and also had both connected to the net at the same time, but Mac B was connected to the net via Mac A's internet sharing. But my DSL connection is very slow, and having internet sharing turned on seemed to cut my bandwidth to each computer in half, regardless of if the other computer was actually sending or receiving any internet data or not. So that setup is unacceptable. note: Mac B seems to be able to connect to the net via my neighbor's airport regardless of the network settings I've tried so far. How the heck do I get this to work?! Is there some sort of submask or proxy setting I need to change? Help!