Path: utzoo!attcan!uunet!clyde.concordia.ca!s3!vaillan
From: vaillan@ireq.hydro.qc.ca (Clement Vaillancourt)
Newsgroups: comp.dcom.sys.cisco
Subject: Serial interfaces IP number question
Message-ID: <2442@s3.ireq.hydro.qc.ca>
Date: 14 Aug 90 14:26:18 GMT
Sender: root@s3.ireq.hydro.qc.ca
Reply-To: vaillan@ireq.hydro.qc.ca ()
Organization: IREQ, Hydro-Quebec, QC, Canada
Lines: 32

How do I number the serial links or the serial links interfaces?

We have the class B 131.195 address; we want to interconnect
3 different sites with 3 different subnets, what should I use for
serial interfaces IP numbers? Each of my 3 Cisco have one ethernet and two 
serial interfaces and we want to make a triangle with 3 Cisco's and 
3 serial links.

The machines and the Cisco ethernet interfaces on each subnet have numbers
in their own subnet.

I don't want to waist subnet because we are planning to interconnect
about 100 sites eventually.

We use a 9 bits subnet (max. of 128 subnets with 512 machines each);
	Site A = 131.195.2.x     We have about 400 machines per site
	Site B = 131.195.4.x
	Site C = 131.195.6.x

-What IP number should I use for the serial interfaces in each Cisco?

-How should I configure the Cisco's to make shure the traffic can
 reach each sites in the event of a single serial link failure?

I like this list very much!

Clem.
--
   Clement Vaillancourt,             |   Institut de Recherche d'Hydro-Quebec
   Network Manager                   |        1800 Montee Ste-Julie, Varennes
                                     |             P. Quebec, Canada, J3X 1S1
   Email: vaillan@ireq.hydro.qc.ca   |  Tel: 514-652-8238 / Fax: 514-652-8309