Great Circle Associates Firewalls
(August 1996)
 

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Subject: Re: Re[2]: huh? switch hitter?
From: "Roderick Murchison, Jr." <murchiso @ vivid . newbridge . com>
Date: Wed, 14 Aug 1996 14:37:41 -0400 (EDT)
To: Brian Murrell <Brian_Murrell @ bctel . net>
Cc: lists @ lina . inka . de, roberth @ cet . com, firewalls @ GreatCircle . COM
In-reply-to: <199608141617 . JAA24207 @ mocha . bctel . net>

Actually, we are finding a large number of our customers are purchasing
our solutions to dedicate a single switched ethernet port per workstation.
This much bandwidth is not always necessary for each individual, but as
soon as they start playing with network-based multimedia applications the
need becomes more apparent... the security benefits are also a plus. :-)

Roderick Murchison, Jr.                      murchiso @
 vivid .
 newbridge .
 com
Newbridge Networks, Inc.                     office: (703) 708-5930
Product Manager - VIVID ACS                     fax: (703) 708-5937
Herndon, VA 22070-5241                       http://www.vivid.newbridge.com

On Wed, 14 Aug 1996, Brian Murrell wrote:

> from the quill of lists @
 lina .
 inka .
 de (Bernd Eckenfels) on scroll
> <m0uqYAU-0004k3C @
 lina>
> > On a switched ethernet a NIC in promisc mode will only receive the
> > packets
> > which are broadcasted (i.e. ARP) and those which are send directly to the
> > HW-Address of the interface. Thats the reason why u have less collisions
> > with switches, cause they simply filter the Packets on the net for each
> > port. You can also lock the arp-addresses in the switch for more
> > security.
> 
> Don't people usually switch segments rather than individual hosts??  Isn't
> switching ethernet a little expensive to do it by host??  If the switching
> is done by segment rather than by host, then one could still sniff one's
> own physical segment.
> 
> b.
> 
> 
> --
> Brian J. Murrell                                        Brian_Murrell @
 bctel .
 net
> BCTel Advanced Communications                                   brian @
 ilinx .
 com
> Vancouver, B.C.                                                brian @
 wimsey .
 com
> 604 454 5279
> 



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