Great Circle Associates Firewalls
(January 1997)
 

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Subject: Re: Firewalls for dial-up access
From: Paul Ferguson <pferguso @ cisco . com>
Date: Wed, 15 Jan 1997 07:28:52 -0500
To: Jarn Calubiran <920145 @ balut . admu . edu . ph>
Cc: firewalls @ GreatCircle . COM

At 01:19 PM 1/15/97 -0800, Jarn Calubiran wrote:

>
>	I apologize beforehand if I missed a discussion on this but most
>of the things I've been hearing from this list concern protecting the
>network from the outside. How about protecting the network from the inside
>in the case where you have dial-up lines into your network. I am aware
>that some dial-up servers perform strong authentication but what if you
>really want the dial-up access to be essentially "isolated" from the
>network. How is this implemented.
>
>	Thanks in advance...


Convential wisdom indicates that dial-up access is located adjacent to
the internal network, behind the firewall, and security is provided by
authorization, authentication, one-time passwords, and perhaps even
call-back.

- paul


--
Paul Ferguson                                           ||        ||
Consulting Engineering                                  ||        ||
Herndon, Virginia   USA                                ||||      ||||
tel: +1.703.397.5938                               ..:||||||:..:||||||:..
e-mail: pferguso @
 cisco .
 com                         c i s c o S y s t e m s

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