Yes, I was speaking to the issue of MAC layer filtering. That was my
point, as I presumed the discussion was concerning MAC layer
filtering as opposed to TCP/IP firewalls.
At 08:34 AM 12/8/95 -0600, Frank K. Senter wrote:
>Wait a minute! You are mixing apples and oranges, and while that's a
>good basis for fruit salad, it shouldn't be used to say that token ring
>topology poses problems for firewalls. Source route bridging is TR's MAC
>layer way of getting communications across the various segments that make
>up a site's LAN. I think we are talking about TCP/IP firewalls, which
>would mean that any partitioning of a LAN (or separating a LAN from your
>Internet providor) calls for distinct IP networks on each side of the
>firewall, and hence some routing function. SRB is terminated at the
>router. You won't see an RI field that shows packet A coming from
>"segment 001 via bridge 1, 002 via *router* XXX.XXX.XXX.XXX".
Paul Ferguson || ||
Consulting Engineering || ||
Reston, Virginia USA |||| ||||
tel: +1.703.716.9538 ..:||||||:..:||||||:..
e-mail: pferguso @
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