mobility and firewall

[Lance Lassetter]

Hi,

It seems some  sort of *recommended* simple firewall solution should  be
in place.  I.e: for laptop users who are very mobile and connecting to
multiple networks that may be infected with some sort of worm/virus.

I have yet to find a solution when assigned multiple ip addresses and
using multiple connection methods, like ppp0, eth0, ath0, wlan0.

Something like Red Hat's lokkit would be nice, however lokkit itself
writes entries for the DNS servers.

So what I'm asking is a simple firewall solution that can be implemented
before multiple interfaces come up.

Thanks,

Lance(stuNNed)