From: Leigh Harrison (ccileigh@gmail.com)
Date: Sun Oct 30 2005 - 12:23:44 GMT-3
Hey all,
I fixed this.
The configs that I wrote out and the configs that I had on my boxes were
different.
I missed the word "broadcast" off one end and thus, not ospf adjacency
was formed....
The phrase "schoolboy error" springs to mind !!!
Many thanks for all your responses
LH
Niche wrote:
>Hi guys,
>
>Leigh's problem remind me of something that happened not long ago... have
>you try reboot your routers?
>
>Furthermore, I have exactly the same problem like a weeks ago when I was
>doing lab. However, I solved it when I applied deny ospf in dialer-list.. I
>still don't know why ospf demand-circuit didn't work..
>
>Cheers~
>Jacky
>
>On 10/30/05, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
>
>>Didn't we just cover this last week? The interface isn't configured for
>>PPP encapsulation so the command isn't needed ;-) Also the peer
>>neighbor route and OSPF demand-circuit by themselves will not cause a
>>problem.
>>
>>
>>
>>HTH,
>>
>>
>>
>>Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
>>bdennis@internetworkexpert.com
>>
>>
>>
>>Internetwork Expert, Inc.
>>http://www.InternetworkExpert.com
>>Toll Free: 877-224-8987
>>Direct: 775-745-6404 (Outside the US and Canada)
>>
>>
>>
>>________________________________
>>
>>From: Schulz, Dave [mailto:DSchulz@dpsciences.com]
>>Sent: Saturday, October 29, 2005 4:16 PM
>>To: Dave Temkin ; nobody@groupstudy.com; Brian Dennis
>>Cc: Leigh Harrison ; FORUM
>>Subject: RE: IP Ospf Demand-Circuit
>>
>>
>>
>>It may be a good practice to add the no peer neighbor command, so the
>>ISDN addresses avoid changing the OSPF database. This would cause the
>>ospf demand to not play the game.
>>
>>Dave
>>
>>-----Original Message-----
>>From: nobody@groupstudy.com
>>To: Brian Dennis
>>Cc: Leigh Harrison; FORUM
>>Sent: 10/29/2005 7:02 PM
>>Subject: RE: IP Ospf Demand-Circuit
>>
>>True, but it's a good place to start...
>>
>>-Dave
>>
>>On Sat, 29 Oct 2005, Brian Dennis wrote:
>>
>>
>>
>>>The routing table itself doesn't necessarily have to change.
>>>
>>>HTH,
>>>
>>>Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
>>>bdennis@internetworkexpert.com
>>>
>>>Internetwork Expert, Inc.
>>>http://www.InternetworkExpert.com
>>>Toll Free: 877-224-8987
>>>Direct: 775-745-6404 (Outside the US and Canada)
>>>
>>>
>>>-----Original Message-----
>>>From: Dave Temkin [mailto:dave@ordinaryworld.com]
>>>Sent: Saturday, October 29, 2005 1:16 PM
>>>To: Brian Dennis
>>>Cc: Leigh Harrison; FORUM
>>>Subject: RE: IP Ospf Demand-Circuit
>>>
>>>
>>>using debug ip routing here would be helpful - he should be able to
>>>
>>>
>>see
>>
>>
>>>the changes to the table that are causing OSPF to dial..
>>>
>>>-Dave
>>>
>>>On Sat, 29 Oct 2005, Brian Dennis wrote:
>>>
>>>
>>>
>>>>Leigh,
>>>>I pasted your configurations into a rack and didn't notice any
>>>>problems. I was looking to see if the idle timeout was possibly set
>>>>
>>>>
>>>to
>>>
>>>
>>>>low but it wasn't.
>>>>
>>>>You should try to isolate the OSPF network across the ISDN to
>>>>see if there are any topology changes that may be keeping the ISDN
>>>>
>>>>
>>>line
>>>
>>>
>>>>up. You can do this by just running OSPF between R1 and R2 across
>>>>
>>>>
>>the
>>
>>
>>>>ISDN.
>>>>
>>>>HTH,
>>>>
>>>>Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
>>>>bdennis@internetworkexpert.com
>>>>
>>>>Internetwork Expert, Inc.
>>>>http://www.InternetworkExpert.com
>>>>Toll Free: 877-224-8987
>>>>Direct: 775-745-6404 (Outside the US and Canada)
>>>>
>>>>
>>>>-----Original Message-----
>>>>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
>>>>
>>>>
>>>Of
>>>
>>>
>>>>Leigh Harrison
>>>>Sent: Saturday, October 29, 2005 3:38 AM
>>>>To: FORUM
>>>>Subject: IP Ospf Demand-Circuit
>>>>
>>>>All,
>>>>
>>>>I've got an ospf demand circuit configured up and it doesn't seem to
>>>>
>>>>
>>>be
>>>
>>>
>>>>playing the game.
>>>>
>>>>I've debug'd ip packet (on R1) and I see the ospf packet
>>>>
>>>>
>(224.0.0.5<http://224.0.0.5>
>
>
>>)
>>
>>
>>>>being sent to 2.2.2.1 <http://2.2.2.1> and then it brings the line up,
>>>>
>>>>
>>even though
>>I've
>>
>>
>>>>got demand circuit configured.
>>>>
>>>>Am I missing something obvious ?
>>>>
>>>>LH
>>>>
>>>>-----------------------
>>>>
>>>>I have:-
>>>>R1 --- frame --- R2
>>>>| --- ISDN --- |
>>>>
>>>>-----------------------
>>>>
>>>>R1
>>>>
>>>>int bri 0
>>>>ip add 2.2.2.1 <http://2.2.2.1> 255.255.255.252<http://255.255.255.252>
>>>>ip ospf demand-circut
>>>>dialer idle-timeout 10
>>>>dialer map ip 2.2.2.2 <http://2.2.2.2> broadcast 11
>>>>dialer-group 1
>>>>isdn switch-type basic-net3
>>>>no cdp enable
>>>>
>>>>dialer-list 1 protocol ip permit
>>>>
>>>>int s0
>>>>ip add 1.1.1.1 <http://1.1.1.1> 255.255.255.0 <http://255.255.255.0>
>>>>.
>>>>.
>>>>
>>>>router ospf 1
>>>>network 1.1.1.1 <http://1.1.1.1> 0.0.0.0 <http://0.0.0.0> ar 0
>>>>network 2.2.2.1 <http://2.2.2.1> 0.0.0.0 <http://0.0.0.0> ar 0
>>>>
>>>>-----------------------
>>>>
>>>>R2
>>>>
>>>>int bri 0
>>>>ip add 2.2.2.2 <http://2.2.2.2> 255.255.255.252<http://255.255.255.252>
>>>>ip ospf demand-circut
>>>>dialer idle-timeout 10
>>>>dialer map ip 2.2.2.1 <http://2.2.2.1> broadcast 21
>>>>dialer-group 1
>>>>isdn switch-type basic-net3
>>>>no cdp enable
>>>>
>>>>dialer-list 1 protocol ip permit
>>>>
>>>>int s0
>>>>ip add 1.1.1.2 <http://1.1.1.2> 255.255.255.0 <http://255.255.255.0>
>>>>.
>>>>.
>>>>
>>>>router ospf 1
>>>>network 1.1.1.2 <http://1.1.1.2> 0.0.0.0 <http://0.0.0.0> ar 0
>>>>network 2.2.2.2 <http://2.2.2.2> 0.0.0.0 <http://0.0.0.0> ar 0
>>>>
>>>>
>>>>
>>>>
>>_______________________________________________________________________
>>
>>
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>>>>
>>>>
>>>>
>>>>
>>_______________________________________________________________________
>>
>>
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>>>>
>>>>
>>>
>>>
>>_______________________________________________________________________
>>
>>
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>>>
>>>
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>>
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>>
>
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