Great Circle Associates Firewalls
(June 1995)
 

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Subject: Re: appletalk remote access through a firewall?
From: hue @ island . com (Jonathan Hue)
Date: Sun, 11 Jun 1995 03:09:36 -0800
To: anthony . baxter @ aaii . oz . au
Cc: firewalls @ greatcircle . com

> I am being pressured very very heavily to allow ARA (appletalk remote
> access) through our firewall, specifically through a dial-in modem pool,

Do you really mean "through our firewall", as in the ARA server is on
the outside and your firewall lets AppleTalk through???

The only way I would consider doing this is if the router connecting you
to untrusted networks does not route AppleTalk.  While it is pretty much
a given that in the U.S. we only route IP, I understand that in
Australia you route AppleTalk on your Internet as well.

If you do have AppleTalk routed from the outside world, I would seriously
consider putting the ARA server on the inside, or on a private interface
connected to your firewall and only allowing AppleTalk packets from that
interface through to the inside.

-Jonathan               hue @
 island .
 com



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