Great Circle Associates Firewalls
(March 1995)
 

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Subject: Re: FW-1, etc.
From: patrick @ oes . amdahl . com (Patrick Horgan)
Date: Thu, 2 Mar 1995 14:55:17 +0800
To: Firewalls @ GreatCircle . COM, sjones @ Aptech . com, patrick @ oes . amdahl . com, abraham @ hpindda . cup . hp . com

I'll write something up in the next couple of days, but for now I have a
couple of questions.

> 
> I've looked into FW-1 (without actually running the software) and got
> the following picture:
> 
> Strength:
> 
> 1) Everyone I have talked to give his thumb up on the product's GUI. Based
>    on my experience, Security Administrators see a good user interface just
>    as important as any other part of the product.
> 
> 2) It is flexible. Its programmable filter module supposingly can be used to
>    adapt to many application protocols (ftp, HTTP, WAIS etc.) including site
>    specific ones. 
> 
> Weaknesses:
> 
> 1) It is not capable of doing User Authentication, which severely limits
>    the access control module. Current rules are created based on service
>    and host address, which may not have the granularity of many of us need.

Good point.

> 
> 2) Because the product is based on the "packet-filtering", it inherits the
>    limitation of the technology. Although I believe CheckPoint did a good job
>    on attempting to break the barrier.

This is vague.  What holes exist that don't exist with protocol or application
proxies?

> 
> Does the above evaluation agree with what you have?

I'll get it out.  Some of it agrees with what I have.

Patrick
   _______________________________________________________________________
  /  These opinions are mine, and not Amdahl's (except by coincidence;).  \
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