From: Todd Veillette (tveillette@myeastern.com)
Date: Wed Oct 16 2002 - 20:39:38 GMT-3
Simple, redistribute a bogus network via a loopback
and block it with a distribute-list over the ISDN.
Use the network as the "watched" route.
-TV
----- Original Message -----
From: "Azhar Mehmood" <azhar.mehmood@web.de>
To: "Bola Adegbonmire" <BolaAD@Resourcery.com.ng>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, October 16, 2002 1:32 PM
Subject: Re: RE: Dialer watch
> hi,
>
> the config is as you described bellow, despite having e0 as primary,
serial as secondry and ISDN as last option dialer-watch triggers ISDN call
right after e0 is anavailable. Although ISDN link is down again after
idle-timeout has expired because serial interface is prefered as second
option and also routes are installed in routing table. My question was how
to prevent dialer-watch to trigger ISDN call right after E0 is down and
serial is available as second option. By the way I'm using EIGRP and Serial
is a permanent link with HDLC enc.
>
> regards
>
> AZHAR M.
> Germany
>
>
> "Bola Adegbonmire" <BolaAD@Resourcery.com.ng> schrieb am 16.10.02
13:38:22:
> > Hi,
> > I did something like this a recently and used Dialer watch. Though my
DDR link is over an asychromous modem via PSTN. First I will like to know if
your Serial interface is a permanent connection. for example is it a
frame-relay PVC? If you had something like this
> >
> > Ethernet
> > Serial - frame-relay PVC
> > ISDN
> >
> > 1 make sure that the network been watched "xxxx" by dailer watch is also
sent by your dynamic routing protocol (Eigrp/Igrp/OSPF) over the serial
link.
> >
> > 2 make sure your Serial interface is made less desirable than your
ethernet(default interface bandwidth makes sure though), use bandwidth
command
> >
> > 3 make sure ISDN interface is least desirable of all three (use
bandwidth command here too)
> >
> > Scenario is close to this
> >
> > int e0
> > bandwidth 10000
> > !
> > int s0
> > bandwidth 256
> > !
> > int bri0
> > bandwidth 64
> >
> > and you were running your dynamic protocol on all interfaces, you will
have network xxxx in topology table(EIGRP) but route through e0 installed in
routing table. When e0 no longer receives hello packets, route through
serial is installed and finally if PVC goes down then there is no interface
in routing table referencing xxxx dialer watch noiw kicks the ISDN link to
dial.
> >
> >
> > -----Original Message-----
> > From: Ashok.Gupta [mailto:Ashok.Gupta@gmconsultants.com]
> > Sent: Tuesday, October 15, 2002 7:44 PM
> > To: 'Azhar Mehmood'; ccielab@groupstudy.com
> > Subject: RE: Dialer watch
> >
> >
> > floating static
> >
> > Regds
> >
> > Ashok
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> > Azhar Mehmood
> > Sent: 15 October 2002 17:09
> > To: ccielab@groupstudy.com
> > Subject: Dialer watch
> >
> >
> > Hi,
> >
> > I have a router R1 ehich has 3 exit points to reach a specific subnet:
> >
> > 1. Ethernet
> > 2. Serial
> > 3. ISDN
> >
> > As long the route over ethernet is available it's prefered over all
other,
> > after it has gone serial is prefered and as third option the ISDN Link.
> >
> > Now my problem is how to keep ISDN Link down until both of the primary
links
> > are available. I tried to acomplish it with dialer watch but as soon as
the
> > ethernet is gone dialer watch triggers the call hence it brings it also
down
> > again after idle-timeout.
> >
> > My question is how to configure the router that it waits until both of
the
> > link 're unavailable and triggering than an isdn call.
> >
> >
> > regards
> >
> > AZHAR MEHMOOD
> > GERMANY
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