LiveCD v. 1.4
When running the Livecd and setting up adsl, if Masquerading is selected as the firewall type, there is a /etc/ppp/firewall-masq script created that uses ipchains. ipchains is not available on the CD, but iptables is.
This leaves the Livecd box totally open and without a firewall of any kind.
This may hold true to the standalone selection also, but hasn't been tried.
Using the livecds as bootable firewalls,etc may be supported in the
future but not at this time
The idea wasn't to have a bootable firewall.
It was to have a firewall while the system is being installed.
I *my* case, I needed ip fowarding so my network could get online while I installed Genttoo on the internet gateway.
To be a little more precise (as I should have in the 1st place), iptables is installed and available on the CD. adsl-setup gives you a choice of 3 firewallings, one of which is ip_forwarding, and creates or links to the /etc/net/firewall script that requires ipchains. Which isn't installed on the CD.
Either ipchains should be installed on the CD, or the firewall script should be changed to use iptables.