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Re: Layer 2 firewalls ...
From: "Dale W. Carder" <dwcarder () doit wisc edu>
Date: Tue, 30 Aug 2005 14:29:14 -0500

I doubt that there's much gained from the marketing material,
but some pluses for layer-2 firewalls include not having to 
renumber end stations during integration and the ability to 
pass through non-ipv4 or non-unicast traffic easily.

The downsides are that you better know your layer 2.  Not everyone
thinks about layer 2 because it usually just "works".  You need
to be careful about vlans, stp roots, bpdu's and other fun stuff 
when layer2 firewalls bridge lans.


Dale W. Carder - Network Engineer   
University of Wisconsin at Madison  

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