I've set up a little experiment here on trying to set up my copy
Redhat 7.1 as a MASQ(firewall) while still behind my existing
firewall, here is my setup.
192.168.1.2(Win2k client computer behind experimental firewall)
192.168.1.1(Redhat Internal Network interface on experimental
10.0.0.60(Redhat External Network interface on experimental firewall)
10.0.0.1(Existing firewall internal network interface)
216.x.x.x(Existing firewall external isp network interface
My problem is that with 192.168.1.2 I can ping 192.168.1.1 and
10.0.0.60 but not 10.0.0.1. I can surf the net and ping internet IP
addresses with the Redhat computer no problem. I know I'm missing
some setting on the Redhat Firewall setup but I don't know what. For
the purposes of this experiment I created a rc.firewall file in
/etc/rc.d that has this inside of it:
echo -e "\n\nLoading simple rc.firewall version $FWVER..\n"
echo " External Interface: $EXTIF"
echo " Internal Interface: $INTIF"
I then made it executable(chmod 700). I also ran:
to remove the ipchains module because you don't want IPchains and
IPtable running at the same time. BTW, the above setup I got from: