Need some help on this if possible please.  I'm trying to get my machine
with the ISDN connection to allow the other machines on the network
out.  From what I've gathered, I need to put the following lines in my
rc.local file:

ipchains -P forward DENY
ipchains -A forward -j MASQ -s 10.0.0.0/99 -d 0.0.0.0/0

I also have ALL:ALL in my hosts.deny file for blocking connections,
though I'm assuming that shouldn't stop the routing (I hope).