[2873] in SIPB_Linux_Development
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To: linux-help@MIT.EDU
Subject: Firewall + IP Masquerading
Date: Sat, 20 May 2000 15:16:17 -0400
From: Jesse N Pavel <jpavel@MIT.EDU>
Hi,
Soon, I will be setting up an internal network connected to the Internet
via an IP-Masquerading Linux box. I would like to erect a firewall, but
as I understand Masquerading, the gateway box will reassign port numbers
to IP packets when sending them out; thus, returning packets that need
to be routed to the internal network will have a variety of port
numbers, even if they represent services such as HTTP. Does this pose
a genuine conflict, or do I misunderstand something? If there are
workable solutions, does anyone know where I can find a FAQ or HOWTO?
Thanks!
- Jesse
