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 From:  "Barry Mather" <barry dot mather at dorecentres dot com dot au>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] How to take 5 dynamic IP's and assign to one private subnet?
 Date:  Tue, 8 Mar 2005 14:30:49 +1100
Can m0n0 do multi mac address spoofing ??? if so, then you should be
able to do this ....

Off the top of my head tho, I thought that it can only spoof 1 mac ..
could be wrong tho

-----Original Message-----
From: Scott Fehringer [mailto:fehrings at onid dot orst dot edu] 
Sent: Tuesday, 8 March 2005 1:48 PM
To: m0n0wall at lists dot m0n0 dot ch
Subject: [m0n0wall] How to take 5 dynamic IP's and assign to one private

Hi everyone.  I have a unique network setup that I was hoping m0n0wall
handle.  Let me describe it below:


From our ISP (Comcast) we have purchased 5 IP addresses.  These IP's are
dynamically assigned, so it is not possible to predict what they will
be, or
even assume they are all from the same subnet.  Each IP is assigned
based on
a MAC address, so for each MAC address the cable modem sees, it will
lease a
DHCP assigned IP from Comcast.  Here are a couple of example IP's to
illustrate what I am talking about:


IP #1:

IP #2:



Inside our house, we have 5 computers.  I would like each of the
to send its traffic through one of the five IP's, but still have its own
local IP address that is on the same subnet as the other 4 computers in
house.  So the network would look like this:


Comp 1 (local IP: --->  (dynamically assigned public IP:

Comp 2 (local IP: --->  (dynamically assigned public IP:

Comp 3 (local IP: --->  (dynamically assigned public IP:

Comp 4 (local IP: --->  (dynamically assigned public IP:

Comp 5 (local IP: --->  (dynamically assigned public IP:


What this accomplishes is that each user in the house is permitted to
their public IP as they see fit (to run a server, or filesharing
program, or
whatever), but the computer will still be able to access the other 4
computers in the house over the LAN.


How can I use m0n0wall to set this sort of a thing up?  I have several
and network cards at my disposal, so any suggestion that will work, I'll
try.  If I'm being unclear on anything, please let me know and I will
attempt to give more information.  


-Scott Fehringer


Dore Achievement Centres (Pty) Ltd - Hotline: 1300 55 77 11


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