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Date: Fri, 22 Nov 1996 11:38:17 -0500 ()
From: Bradley Dunn <bradley@dunn.org>
To: Edward Ing <edward.ing@utoronto.ca>
cc: isp@freebsd.org, questions@freebsd.org
Subject: Re: IP routing thoery: ping pong effect.
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On Fri, 22 Nov 1996, Edward Ing wrote:

[big network diagram deleted]
> My question is: how is it possible for Hb and He to route packages to
> each
> other? Obviously theoretically they can because it happens on the
> Internet.
> Thus, how can this theoretically be accomplished.

Routing protocols.

See:
http://www.cisco.com/public/technotes/tech_protocol.shtml

-BD