nocat bridge with (debian) linux

Hi,

I am trying to set up NoCat(Auth) in bridging mode on a debian linux PC.

I'm having trouble understanding how NoCat works on a bridge; I *think* I just 
need config-file advice ...


I have upgraded the kernel from 2.4.x to 2.6.8 and have already configured 
eth0+eth1 to be bridged (as "br0"). I don't need the bridge-nf patch do I?

I also have installed ebtables (not sure why now).

I have followed the advice of Rob in a previous posting and set RouteOnly to 1 
... but what should I put for the Internal and External interfaces? Do I just 
set them both to "br0"?

Doing this seems to make the gateway script start but is it the Right Answer?

Thanks in advance,
Steve Platt

PS I have dhcpd3 and a DNS server running on br0 and the bridge itself is 
working. Web connections do seem to get redirected, so it must be working I 
guess  ... right?