Here is my setup I have a G4 running OS 10.2.6 connected to an ethernet
switch. I then a have windows machine running XP also connected to the
same switch using it built-in ethernet. I then plugged the DSL modem
into the uplink port on the switch.

Here is the mac set-up
I'm using the built in PPPoE client on the mac to connect to the
internet. I've made two locations on with the PPPoE client on and the
TCP/IP configured using PPP. I made another location with the TCP/IP
configured using DHCP. I then turned on internet sharing.

Here is the WinXP machine set-up-
I set that up using the built-in set-up wizard saying that it was
connect to the internet through a network. It did the rest

I can't browse the internet on the WinXP machine, but I can do
file-sharing.

After that failed I went to the WinXP machine and deleted what I just
created. I then ran in internet set-up wizard saying that I was the
computer connected to the internet and other computers on this network
will connect to the internet using the connection. That worked.

My question is How can I do the same thing but using the G4 as the
primary internet connection.

Thanks for any help
the herbalist