Great Circle Associates Firewalls
(April 1995)
 

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Subject: 3COM Routers are good Firewall solutions
From: blackmer @ nbn . com
Date: Mon, 17 Apr 1995 21:25:32 -0700
To: paul @ hawksbill . sprintmrn . com (Paul Ferguson), maillet @ bashful . usmcs . maine . edu (Edward Maillet)
Cc: firewalls-digest @ GreatCircle . COM

Paul,etc:

	I feel you are incorrect in stating that 3COM Netbuilder II routers 
can not be used as firewalls or as part of blocking router for a  total 
Firewall solution.

	We use a 3COM routers as a firewall to protect certain parts of the 
Midas project and it also used by many school districts in California.

	3COM routers, in my opinion, are easilier to setup and maintain than a 
Cisco routers. They are also much cheaper. Any Netbuilder router software 
release after 7.0 has filter lists similiar to Cisco access lists. Any release 
after 8.0 has increased filter performance to very good. AS a firewall router 
I feel I can do anything with 3COM that I need to do. 

	 (I have used both CISCO and 3COM) There is no doubt that Cisco sets 
the standard for TCP/IP routing. They are usually the first out with new ideas 
(first major vendor with compression on frame relay) Bay Networks and 3COM 
added it in the next release. Cisco 7000's has logging which 3COM Netbuilders 
lack at as time. There are many pros and cons to both vendors.

	Bob Konigsberg at 3COM has written an excellent article on using 3COM 
routers as part of a total firewall solution. Really worth reading. I would be 
happy to provide an eMail address to receive this article if you are 
interested.

	Lastly, I would be happy to provide some information on filters, etc. 
about 3COM routers if anybody is interested.


WARMLY fron the Hot tub in Marin county, California.

Bill Blackmer
415-499-6309

	P.S. I was in China for several months recently on family business. No 
firewall problems there !!  I could never get my laptop to work with the local 
telephone company


<---- Begin Included Message ---->
From: paul @
 hawksbill .
 sprintmrn .
 com (Paul Ferguson)
Subject: Re: Need 3Com NetBuilder II experiences
To: maillet @
 bashful .
 usmcs .
 maine .
 edu (Edward Maillet)
Date: Mon, 17 Apr 1995 19:28:52 -0500 (EST)
Cc: firewalls-digest @
 GreatCircle .
 COM


> 
> Hey All,
>  I find myself having to build a firewall with only a 3Com Netbuilder II
> router. Any one have any experience and known gotcha's that go with setting
> up the packet filtering. The filter grammer is cryptic as hell so any
> know to be working filter sets would also be nice.
> ----- Ed Maillet
> maillet @
 usmcs .
 maine .
 edu
> 


ObAdvise: Don't use a 3Com router as a firewall.


Thus is the voice of experience.


-  paul


______________________________________________________________________________
_
Paul Ferguson                         
US Sprint                                          tel: 703.689.6828
Managed Network Engineering                   internet: 
paul @
 hawk .
 sprintmrn .
 com
Reston, Virginia  USA                             http://www.sprintmrn.com 


<---- End Included Message ---->



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