[ale] IP Masquerading Question

[Jerry Z. Yu]

	MAC addr is useful for the same subnet. usually your LAN (your
home net) will not be on the same same subnet as your external high-speed
connection interface. To the outside world including the cable modem
itself, your NAT box is the only thing talking.

Your internal interface of the NAT (IP Masquerading)
box usually share the subnet with your LAN for a simple setup.

 On Thu, 24 Jan 2002, Ty Connell wrote:

#FYI, I have done the same thing with AT&T, albeit not locally.
#
#-----Original Message-----
#From: jeff hubbs [mailto:hbbs at mediaone.net]
#Sent: Thursday, January 24, 2002 1:58 PM
#To: bkruger at mindspring.com
#Cc: ale at ale.org
#Subject: Re: [ale] IP Masquerading Question
#
#
#bkruger at mindspring.com wrote:
#
#> I was looking at installing Knology cable in my house.  One of their plans
#requires that you send them the MAC address of the
#
# > NIC
#
# to them for access.
#>
#> If this is the case, will IP masquerading for a small subnet "spoof" the
#MAC address for all outward packets to the MAC of the NIC attached to the
#cable modem?  I've looked over some of the docs for IP Masquerading, but
#have not been able to confirm/deny this.  It is probably right under my
#nose....
#>
#> Regards - Bob Kruger
#
#Bob -
#
#Don't take this as gospel, but this is pretty much exactly what I have
#done for ATT Broadband.  I started out with an NE2000 ISA NIC in a
#Windows box just to verify that everything was up and running and then
#moved it to a Coyote Linux box that performs NAT.  All outbound packets
#have the hardware MAC address regardless of their masquerading status.
#
#- Jeff
#
#
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Jerry Z. Yu					+1-404-262-8544 (O)
Systems Engineer				z.yu at ptek.com
IS Support, Voicecom,				www.voicecom.com
A business unit of PTEK Holdings, Inc.		www.ptek.com


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