Subject: NAT in one direction, passing packets in the other
To: None <firstname.lastname@example.org>
From: Steve Bellovin <email@example.com>
Date: 09/27/2004 20:48:43
I have the following setup:
Internet -- GWa ----------GWb---------
GWa is a commercial "router" (i.e., a NAT box + hub), which I'll some
day replace with NetBSD on a Soekris or some such. GWb runs NetBSD 2.0beta.
On GWb, there are rules permitting host2 access to a few ports and machines
on the Internet. All that works just fine. The problem is that I want to
be able to ssh from host1 to host2. That isn't working properly, at
least not when I tried the obvious 'map' command going back in the
other direction. Any sgugestions?
--Steve Bellovin, http://www.research.att.com/~smb