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From: tgp@sei.cmu.edu (Tod Pike)
Newsgroups: comp.dcom.sys.cisco
Subject: routing parts of a Class B
Message-ID: <8560@fy.sei.cmu.edu>
Date: 12 Sep 90 14:11:18 GMT
Distribution: na
Organization: Carnegie-Mellon University (Software Engineering Institute), Pgh, PA
Lines: 31

I've been struggling with what appears to be a simple problem, but have had
no luck.  I have a class B subnet being routed out one interface of my Cisco
box.  A portion of my organization (who have a dedicated range of class C
subnets of my network) would like to have their own wire.  I would like to
route only their portions of my class B out a separate interface, leaving
the rest of my numbers routed out the normal interface.  A diagram might help:

            Internet
                |
	|-----------------|
	|    Ether 0      |
	|                 |
	|   Cisco  Ether 1|-128.237.0.0
	|                 |
	|    Ether 2      |
	|-----------------|
	        |
	   128.237.X.0

The only way I can see to do this is to define Ethernet 1 as a class C subnet
and use secondary lines for all of my other class C portions.  Then we define
Ethernet 2 as another class C subnet, with the appropriate netmasks.  If anyone
can see a better way to do this, I'd appreciate hearing from them!

			Tod Pike

-- 
Internet: tgp@sei.cmu.edu
Mail:     Carnegie Mellon University
	  Software Engineering Institute
	  Pittsburgh, PA. 15213-3980