From: Kelley, Richard A. (AIT) (Richard.A.Kelley@xxxxxxxxxxxxxxxxx)
Date: Fri Feb 02 2001 - 12:41:20 GMT-3
Wouldn't the router know, if you used multiple Dialer-map statements in the
Dialer interface config, instead of multiple dial strings??
Alan
-----Original Message-----
From: Kay Olateru [mailto:kolateru@cisco.com]
Sent: Friday, February 02, 2001 10:30 AM
To: Frank Liang; ccielab@groupstudy.com
Subject: RE: Dial Backup
Thanks Frank. The problem with using multiple dialer strings per dialer
interface is that the router has no way of determining which dial string to
use to connect to a specific IP address.
Regards
Kay
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Frank Liang
> Sent: 02 February 2001 14:40
> To: kolateru@cisco.com; ccielab@groupstudy.com
> Subject: Re: Dial Backup
>
>
> Kay,
>
> Most of the data centre modems like Motorola 3266 support leased line as
> well as dial backup. You can configure it to dial multiple
> destinations. If
> the first destination fail to establish the connection, it will try the
> second one then third one and so on.
>
> In the Cisco router, let say s0 is leased line, dialer1 is DDR
> backup. You
> can use backup int di1 under int s0 and set up two dialer strings
> for site B
> and site C under int di1.
>
> will this achieve what you are trying to do?
>
> Frank
>
>
> >From: "Kay Olateru" <kolateru@cisco.com>
> >Reply-To: "Kay Olateru" <kolateru@cisco.com>
> >To: <ccielab@groupstudy.com>
> >Subject: Dial Backup
> >Date: Fri, 2 Feb 2001 13:47:36 -0000
> >
> >All,
> >
> >Apologies if this does not fall within the CCIE Lab exam,
> however, I would
> >like to confirm whether the solution I am thinking is right.
> >
> >Problem:
> >I want to backup a leased line failure between site A and
> B(failure meaning
> >all routes to B have been lost), to first dial site B and if this fails
> >then
> >dial a second site C on a different subnet. How can you dial the second
> >site
> >automatically after the first dial backup has failed.
> >
> >Solution???
> >Use the normal dial backup with DDR to back up the leased line, and then
> >use
> >floating static route (with higher administrative distance of
> course!) with
> >DDR to dial Site C. I presume that this will only work if there
> is no route
> >entries on A for site B, but the only viable route will be via C - the
> >floating static route.
> >
> >Has anybody tried this before or have I missed something
> completely basic??
> >
> >
> >Regards
> >
> >
> >Kay. S. Olateru (Mr)
> >Systems Engineer, CCDP
> >Network Service Providers - Western Europe
> >ISP1
> >Cisco Systems, EMEA
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