From: Ram Shummoogum (rshummoo@ca.ibm.com)
Date: Sun May 18 2003 - 10:11:08 GMT-3
Here is the reason:
Add this line. debug dialer will tell you that this line is missing
dialer map ip 192.168.1.0 name r1 broadcast 8358661
BTW you don't need a dialer-group
Cheers,
RAM
Jeongwoo Park <jpark@wams.com>@groupstudy.com on 05/17/2003 04:55:54 PM
Please respond to Jeongwoo Park <jpark@wams.com>
Sent by: nobody@groupstudy.com
To: "'Tim Fletcher'" <tim@fletchmail.net>, dwight baldwin
<dtstone01@yahoo.com>, ccielab@groupstudy.com
cc:
Subject: RE: Problems with OSPF & Dialer Watch
My dialer-watch is not working with/ without dialer-list/dialer-group.
But it works without access-list.
Something weird is happening.
Here is config
<with dialer-group>
interface BRI0/0
ip address 172.16.12.2 255.255.255.0
encapsulation ppp
ip ospf message-digest-key 1 md5 cisco
dialer idle-timeout 30
dialer map ip 172.16.12.1 name r1 broadcast 8358661
dialer map ip 172.16.12.1 name r1 broadcast 8358663
dialer load-threshold 1 outbound
dialer watch-group 1
dialer-group 1
isdn switch-type basic-ni
isdn spid1 0835866201 8358662
isdn spid2 0835866401 8358664
no peer neighbor-route
ppp authentication chap
ppp multilink
access-list 101 deny ospf any any
access-list 101 permit ip any any
dialer watch-list 1 ip 192.168.1.0 255.255.255.0
dialer-list 1 protocol ip list 101
<without dialer-group>
interface BRI0/0
ip address 172.16.12.2 255.255.255.0
encapsulation ppp
ip ospf message-digest-key 1 md5 cisco
dialer idle-timeout 30
dialer map ip 172.16.12.1 name r1 broadcast 8358661
dialer map ip 172.16.12.1 name r1 broadcast 8358663
dialer load-threshold 1 outbound
dialer watch-group 1
isdn switch-type basic-ni
isdn spid1 0835866201 8358662
isdn spid2 0835866401 8358664
no peer neighbor-route
ppp authentication chap
ppp multilink
access-list 101 deny ospf any any
access-list 101 permit ip any any
dialer watch-list 1 ip 192.168.1.0 255.255.255.0
dialer-list 1 protocol ip list 101
<without access-list 101 and with dialer-group 1>
ISDN----kicks in.
r2(config)#no access-list 101
r2(config)#
23:26:165370847584: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to
23:26:38: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up
23:26:171798691839: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state to
23:26:169671478200: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected
r2(config)#
23:26:39: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, chang
23:26:39: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1
23:26:40: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2, chang
r2(config)#
23:26:45: %ISDN-6-CONNECT: Interface BRI0/0:2 is now connected to 8358661
r2(config)#
23:26:48: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.1 on BRI0/0 from LOADI
r2(config)#
It is really weird. I have heard about some bugs on watch-list for a while.
I wonder if it is one of those.
-----Original Message-----
From: Tim Fletcher [mailto:tim@fletchmail.net]
Sent: Saturday, May 17, 2003 7:37 AM
To: dwight baldwin; ccielab@groupstudy.com
Subject: Re: Problems with OSPF & Dialer Watch
Dwight,
The 1st problem is probably caused by the idle timeout on the far side.
Since it is not doing dialer watch, it will time out and drop the
connection. The dialer watch side will then bring it back up immediately.
The result is that every timeout interval, you connection will flap. The
solution is to set the idle timeout on the far side to 0, thereby disabling
it.
As far as demand-circuit and dialer-list, dialer watch doesn't care about
interesting traffic, so you do not need dialer-group or dialer-list. When
dialer watch goes active, it brings the connection up and keeps it up until
there is a route to one of the watched routes through another interface.
Dialer-group and dialer-list can still be used, but the effect they have
will be to bring up the circuit when dialer watch is not active.
-Tim Fletcher #11406
At 04:29 PM 5/16/03 -0700, dwight baldwin wrote:
>Hi All,
>
>I'm having trouble getting dialer watch to work with
>OSPF. Whenever I shutdown the primary path, the ISDN
>dial comes up fine and with the "show dialer" command
>the dialer reason states "Dial reason: Dialing on
>watched route loss". However, the idle timer never
>resets and when it expires, the ISN line goes down.
>Anybody seen this problem or have any ideas about this
>should be fixed? Also, isn't is best practice to use
>this in conjunction with an ospf demand circut & to
>deny ospf with the dialer-list command? Here is may
>relavant config:
>
>interface BRI0
> ip address 133.1.50.5 255.255.255.252
> encapsulation ppp
> shutdown
> dialer idle-timeout 30
> dialer map ip 133.1.50.6 name R6-2503 broadcast
>9082774366
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 90827716440101
> no peer neighbor-route
> no cdp enable
> ppp authentication chap
>
>dialer-list 1 protocol ip list 111
>
>access-list 111 deny ospf any any
>access-list 111 permit ip any any
>
>Dwight
>
>
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