Distro for these networking requirements

[Ulysses_]

Which distro can do the following?

1. Works soundly with 24mb of memory or less

2. Can be a NAT router just like the router of an ADSL modem but without the ADSL functionality, it would simply connect to the ADSL router and from there to the internet

3. Is preconfigured for the above NAT, or has instructions for setting up that are valid (not man pages or out-of-date how-to's)

[Iowan]

FREESCO? I haven't used it since I upgraded from dial-up.