[4336] in North American Network Operators' Group
Re: customers and web servers and level one naps
daemon@ATHENA.MIT.EDU (Jim J. Steinhard)
Thu Sep 12 20:05:31 1996
Date: Thu, 12 Sep 1996 19:55:17 -0400 (EDT)
From: "Jim J. Steinhard" <jjs@sprint.net>
To: "Steve Schnell, Sprint Corporation" <schnell@gsd.sprint.com>
cc: Michael Dillon <michael@memra.com>, nanog@merit.edu
In-Reply-To: <v03007804ae5c80d62b62@[199.3.27.205]>
Steve,
The GIGAswitches support filtering based on several parameters (e.g.
MAC source/destination address, switch ports, etc.). We currently employ
filtering based on ports (vs. MAC addresses) to logically partition the
GIGAswitches. I think this is prudent since the MAC addresses will change
if (er, when :-) )we ever have to swap out failed equipment.
Jim
On Wed, 11 Sep 1996, Steve Schnell, Sprint Corporation wrote:
> Date: Wed, 11 Sep 1996 09:49:58 -0500
> From: Steve Schnell, Sprint Corporation <schnell@gsd.sprint.com>
> To: Michael Dillon <michael@memra.com>
> Cc: nanog@merit.edu
> Subject: Re: customers and web servers and level one naps
>
> At 11:30 -0700 9.10.96, Michael Dillon wrote:
>
> >
> >It's not a matter of experience. It's a matter of what a level-2 device is
> >and how it normally works. There is no security at level 2.
> >
>
> Yes there is rudimentary security at L2. It's called MAC-based filtering,
> which is a feature of DEC's GIGAswitch. I believe that SprintLink uses the
> capability in a form to logically separate backbone router traffic from
> access router traffic when both routers are homed to the same GIGAswitch.
> With filtering, you can establish virtual workgroups where only certain
> devices can communicate with other devices in the same group, or with
> specific devices in other groups.
>
> ss
>
>
>
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