From: kenairs (kenairs@xxxxxxxxxxx)
Date: Mon Nov 26 2001 - 12:29:12 GMT-3
Hi Francois,
Refering to the cisco link, i have some question.
The dialer-list states that "access-list 101 deny ospf any any ".
I know that this prevents ospf hellos from bringing up the isdn link.
But with this access-list, how can the ospf routes propagates to the other
router once the backup (isdn) link is used ?
Am i missing some thing ?
tks
----- Original Message -----
From: Rivron Francois <Francois.Rivron@ei-rsi.fr>
To: Jobson, Eddie <EJobson@thrupoint.net>; <ccielab@groupstudy.com>
Sent: Monday, November 26, 2001 8:42 PM
Subject: RE: Dialer watch question
> Eddie,
>
> Look at
> http://www.cisco.com/warp/public/129/bri-backup-map-watch.html
>
> There is a good explanation of dialer watch.
>
> About the loopback problem :
>
> r1---serial---r2
> | |
> +----BRI-----+
>
> r1
> interface lo0
> ip adresse 10.10.10.1 255.255.255.0
>
> r2
> int bri0
> dialer watch-group 1
>
> dialer watch-list 1 ip 10.10.10.1 255.255.255.255
>
> because
>
> r2#show ip route
> 10.0.0.0/32 is subnetted, 1 subnets
> O 10.10.10.1 [110/65] via ..... Serial0
>
>
> Whatever the subnet of network is on the int loopback, you have to set /32
> in the dialer watch if you monitor this network.
>
>
> Francois.
>
>
>
> > -----Message d'origine-----
> > De: Jobson, Eddie [SMTP:EJobson@thrupoint.net]
> > Date: lundi 26 novembre 2001 11:53
> > @: 'Rivron Francois '; Jobson, Eddie; ''ccielab@groupstudy.com' '
> > Objet: RE: Dialer watch question
> >
> > Thanks Francois.
> >
> > If the ip ospf network point-to-point was used the /32 loopback is then
> > advertised as a /24 or whatever, but would you still use the specific
> > interface address? The one used in the dialer map is usually the remote
> > ISDN
> > and wouldn't be used as a dialer watch, it would usually be a local
> > LAN/WAN
> > that the ISDN was monitoring and backing up.
> >
> > Eddie.
> >
> >
> > -----Original Message-----
> > From: Rivron Francois
> > To: Jobson, Eddie; 'ccielab@groupstudy.com'
> > Sent: 26/11/01 05:24
> > Subject: RE: Dialer watch question
> >
> > Hello,
> >
> > The <network> statement in "dialer map " and "dialer watch-list" command
> >
> > have to be the same.
> >
> > The <network > entry is the one looked up in the routing
> > table...so
> > if you monitor network 10.10.10.0 you have to use "dialer watch-list 1
> > ip
> > 10.10.10.1 255.255.255.0"
> >
> > Aware with the int loopback and OSPF,cause OSPF use a /32 mask
> > to
> > describe a stub network , so the specific address of the int loopback
> > need
> > to be used in "dialer watch-list".
> >
> > Francois.
> >
> >
> > > -----Message d'origine-----
> > > De: Jobson, Eddie [SMTP:EJobson@thrupoint.net]
> > > Date: lundi 26 novembre 2001 11:03
> > > @: 'ccielab@groupstudy.com'
> > > Objet: Dialer watch question
> > >
> > > If dialer watch is used to monitor an interface does the specific
> > > interface
> > > IP address have to be used including the subnet mask for the network
> > it
> > > sits
> > > on, or is it better to use the whole network range, or can either be
> > used.
> > >
> > > dialer watch-list 1 ip 10.10.10.0 255.255.255.0
> > > OR
> > > dialer watch-list 1 ip 10.10.10.1 255.255.255.0
> > >
> > > Thanks,
> > >
> > > Eddie.Note: The information contained in this message may be
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> > is
> > > strictly prohibited. If you have received this communication in
> > error,
> > > please notify us immediately by replying to the message and deleting
> > it
> > > from
> > > your computer. Thank you. ThruPoint, Inc.
> > Note: The information contained in this message may be privileged and
> > confidential and protected from disclosure. If the reader of this
message
> > is not the intended recipient, or an employee or agent responsible for
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notified
> > that any dissemination, distribution or copying of this communication is
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> > please notify us immediately by replying to the message and deleting it
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