Hi, I've read the Howto's and the extremely helpful threads in this subject, but after four days of changing this and trying that I'm still not having success. OK I installed Mandrake 10.0 official on a dual pentium HP box. I installed shorewall thru drake. I updated shorewall to 2.2.0-1 and successfully copied the files for a two interface setup. I want to use the Linux box as a firewalled router and connect my second box running XP with internet access for both boxes. My Linux box has two nic cards. My ISP provided me with a static ip address and the two dns ip addresses. My topology has been my ISP's modem connected to DLink router connected to a hub and my two boxes connected to that hub(My Linux box accesses the internet with no problem in this setup). I would like to replace the DLink router and use my Linux box instead.Also, I would like to use IP Masquerading SNAT. Can someone please help me make this work? I want to wean away from gui and master the command line so instructions in this format would be awesome. Please instruct if I need to post more info

thank you!!!

Zones file
#ZONE TYPE OPTIONS IN OUT
# OPTIONS OPTIONS
fw firewall
net ipv6
loc ipv6

Policy file
#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
loc net ACCEPT
net all DROP info
all all REJECT info
FW net ACCEPT

Masq file
#Interface Subnet Address
eth0 eth1 my static isp address

Interfaces file
ZONE INTERFACE BROADCAST
net eth0
loc eth1

/etc/resolv.conf file

nameserver myisp's two dns servers addresses