Chris Reeves said:
Here are some quick and easy steps.
On your laptop (as root): route add default gw <ip address of old pc> You'll also have to set up your /etc/resolv.conf with the IP addresses of your ISP's DNS servers (so that it looks the same as the one on the old PC when it's connected).
On your old PC (as root): echo 1 > /proc/sys/net/ipv4/ip_forward ipchains -P forward MASQ
Thanks Chris your solution worked 'straight out of the box'. I understand the entries in the /etc/resolv.conf file and why you have to put them there. Can you enlighten me as to what and why the 2 lines that I entered on the PC did? I had a look at the diald documentation and that looks straight forward enough. Might have to come back with some questions on the IPCHAINS. Jethro