[Voyage-linux] Post-install connection issues

[Dave Rush]

So I have 050 installed on my alix 2.c3.

The alix can get out just fine, and I can install things with apt-get. Pinging
from the alix works. but any devices connected behind it are unable to get out
to even the 192.168.1.0 network set up by the PP router, which dhcps the alix.

Everything on the router is default. All I've done is configure the interfaces
by uncommenting them, and added the nat script on connection of eth0. Did I do
that right, or is there something else that needs to be done to allow access to
the outside world? I don't see ANY documentation on this, or anyone else with
the same problem so I'm thinking that I've somehow screwed up the one line of
code I've typed. ;)
This would be a good entry for the wiki, the post-install config. 

Thanks in advance.

-------------
voyage:~# cat /etc/network/interfaces
# Used by ifup(8) and ifdown(8). See the interfaces(5) manpage or
# /usr/share/doc/ifupdown/examples for more information.
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
        up nat.sh eth0 eth1 "10.1.20.0/24"
auto eth1
iface eth1 inet static
       address 10.1.20.1
       netmask 255.255.255.0
       broadcast 10.1.20.255

auto eth2
iface eth2 inet static
       address 10.1.30.1
       netmask 255.255.255.0
       broadcast 10.1.30.255