Re: OSPF problem..pls help.

Yes send debug ip ospf adj.

On Sun, Sep 13, 2009 at 12:08 PM, Steve Lyons <charter21p5_at_gmail.com> wrote:

> Send "show frame map"
>
>
> On Sun, Sep 13, 2009 at 11:21 AM, Naufal Jamal <naufalccie_at_yahoo.in>wrote:
>
>>
>> *R2*(config-router)#do sh ip ospf int s0/0
>> Serial0/0 is up, line protocol is up
>> Internet Address 1.1.24.2/24, Area 2
>> Process ID 1, Router ID 2.2.2.2, Network Type POINT_TO_POINT, Cost: 64
>> Transmit Delay is 1 sec, State POINT_TO_POINT
>> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>> oob-resync timeout 40
>> Hello due in 00:00:07
>> Supports Link-local Signaling (LLS)
>> Cisco NSF helper support enabled
>> IETF NSF helper support enabled
>> Index 1/1, flood queue length 0
>> Next 0x0(0)/0x0(0)
>> Last flood scan length is 0, maximum is 0
>> Last flood scan time is 0 msec, maximum is 0 msec
>> Neighbor Count is 1, Adjacent neighbor count is 0
>> Suppress hello for 0 neighbor(s)
>>
>> *R4*(config-router)#do sh ip ospf int s0/1/0
>> Serial0/1/0 is up, line protocol is up
>> Internet Address 1.1.24.4/24, Area 2
>> Process ID 1, Router ID 4.4.4.4, Network Type POINT_TO_POINT, Cost: 64
>> Transmit Delay is 1 sec, State POINT_TO_POINT
>> Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
>> oob-resync timeout 40
>> Hello due in 00:00:05
>> Supports Link-local Signaling (LLS)
>> Cisco NSF helper support enabled
>> IETF NSF helper support enabled
>> Index 1/2, flood queue length 0
>> Next 0x0(0)/0x0(0)
>> Last flood scan length is 0, maximum is 0
>> Last flood scan time is 0 msec, maximum is 0 msec
>> Neighbor Count is 0, Adjacent neighbor count is 0
>> Suppress hello for 0 neighbor(s)
>>
>> Here you go...
>> --- On *Sun, 13/9/09, Steve Lyons <charter21p5_at_gmail.com>* wrote:
>>
>>
>> From: Steve Lyons <charter21p5_at_gmail.com>
>> Subject: Re: OSPF problem..pls help.
>> To: "Mohamed El Henawy" <m.henawy_at_link.net>
>> Cc: "Divin Mathew John" <divinjohn_at_gmail.com>, "Naufal Jamal" <
>> naufalccie_at_yahoo.in>, ccielab_at_groupstudy.com
>> Date: Sunday, 13 September, 2009, 2:14 PM
>>
>>
>> Send me the output of "show ip ospf int x" for the Layer3 interface on
>> each side.
>>
>> Steve Lyons
>>
>> On Sun, Sep 13, 2009 at 9:08 AM, Mohamed El Henawy <m.henawy@link.net<http://in.mc950.mail.yahoo.com/mc/compose?to=m.henawy@link.net>
>> > wrote:
>>
>>> They are already
>>>
>>> network 1.1.24.4 0.0.0.0 area 2
>>> network 1.1.24.2 0.0.0.0 area 2
>>>
>>>
>>>
>>> ----- Original Message -----
>>> *From:* Steve Lyons<http://in.mc950.mail.yahoo.com/mc/compose?to=charter21p5@gmail.com>
>>> *To:* Mohamed El Henawy<http://in.mc950.mail.yahoo.com/mc/compose?to=m.henawy@link.net>
>>> *Cc:* Divin Mathew John<http://in.mc950.mail.yahoo.com/mc/compose?to=divinjohn@gmail.com>; Naufal
>>> Jamal <http://in.mc950.mail.yahoo.com/mc/compose?to=naufalccie@yahoo.in>;
>>> ccielab@groupstudy.com<http://in.mc950.mail.yahoo.com/mc/compose?to=ccielab@groupstudy.com>
>>> *Sent:* Sunday, September 13, 2009 5:02 PM
>>> *Subject:* Re: OSPF problem..pls help.
>>>
>>> Bottom line: Both OSPF neighbors are required to be in the same area.
>>>
>>> Steve Lyons
>>>
>>> On Sun, Sep 13, 2009 at 8:20 AM, Mohamed El Henawy <m.henawy@link.net<http://in.mc950.mail.yahoo.com/mc/compose?to=m.henawy@link.net>
>>> > wrote:
>>>
>>>> I think Serial0/0/0 is already on another area and due to dynamic FR
>>>> Mapping
>>>> its getting this packet from 1.1.24.2 which is in Area 2 on this
>>>> interface while it should get it on Serial0/1/0
>>>>
>>>>
>>>>
>>>> ----- Original Message ----- From: "Steve Lyons" <charter21p5@gmail.com<http://in.mc950.mail.yahoo.com/mc/compose?to=charter21p5@gmail.com>
>>>> >
>>>> To: "Divin Mathew John" <divinjohn@gmail.com<http://in.mc950.mail.yahoo.com/mc/compose?to=divinjohn@gmail.com>
>>>> >
>>>> Cc: "Naufal Jamal" <naufalccie@yahoo.in<http://in.mc950.mail.yahoo.com/mc/compose?to=naufalccie@yahoo.in>>;
>>>> <ccielab@groupstudy.com<http://in.mc950.mail.yahoo.com/mc/compose?to=ccielab@groupstudy.com>
>>>> >
>>>> Sent: Sunday, September 13, 2009 4:11 PM
>>>> Subject: Re: OSPF problem..pls help.
>>>>
>>>>
>>>> Good catch. I didn't even notice. :) Check your configuration on
>>>>> both
>>>>> sides. It appears you have a mismatch of area type.
>>>>>
>>>>> router ospf 1
>>>>> log-adjacency-changes
>>>>> network 1.1.4.4 0.0.0.0 area 0 <====== does this match on the other
>>>>> side.
>>>>>
>>>>>
>>>>> Keep in mind the ospf hello packet has an area-id field and if this
>>>>> does not
>>>>> match on both sides then the adjacency will not be formed.
>>>>>
>>>>> Below is an example of packet structure I found searching google:
>>>>>
>>>>>
>>>>> http://routemyworld.com/wp-content/uploads/2008/07/ospf-packet-header.jpg
>>>>>
>>>>> Also here is some reading on why neighbors might not form:
>>>>>
>>>>>
>>>>> http://supportwiki.cisco.com/ViewWiki/index.php/OSPF_routers_do_not_form_neighbor_relationship_due_to_a_mismatch_in_hello_parameters
>>>>>
>>>>> Steve Lyons
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Sep 13, 2009 at 8:56 AM, Divin Mathew John <
>>>>> divinjohn@gmail.com<http://in.mc950.mail.yahoo.com/mc/compose?to=divinjohn@gmail.com>
>>>>> >wrote:
>>>>>
>>>>> *Sep 13 11:20:38.243: OSPF: Rcv pkt from 1.1.24.2, Serial0/0/0,
>>>>>> area
>>>>>> 0.0.0.0
>>>>>> mismatch area 0.0.0.2 in the header??
>>>>>>
>>>>>>
>>>>>> On Sun, Sep 13, 2009 at 6:19 PM, Steve Lyons <charter21p5@gmail.com<http://in.mc950.mail.yahoo.com/mc/compose?to=charter21p5@gmail.com>
>>>>>> >wrote:
>>>>>>
>>>>>> Ping 224.0.0.5 and source it from the ptp interface. Let me know if
>>>>>>> you
>>>>>>> get
>>>>>>> a response.
>>>>>>>
>>>>>>> Steve Lyons
>>>>>>>
>>>>>>> On Sun, Sep 13, 2009 at 6:16 AM, Naufal Jamal <naufalccie@yahoo.in<http://in.mc950.mail.yahoo.com/mc/compose?to=naufalccie@yahoo.in>
>>>>>>> >
>>>>>>> wrote:
>>>>>>>
>>>>>>> > Hi,
>>>>>>> >
>>>>>>> > I have a full-mesh of ospf network but having problems between R4
>>>>>>> and > R2
>>>>>>> > point-to-point network type .here is the config/debug on both the
>>>>>>> > routers.the
>>>>>>> > neighbourship never comes up.
>>>>>>> >
>>>>>>> >
>>>>>>> > R4
>>>>>>> >
>>>>>>> > interface Serial0/1/0
>>>>>>> > ip address 1.1.24.4 255.255.255.0
>>>>>>> > encapsulation frame-relay
>>>>>>> > ip ospf network point-to-point
>>>>>>> > frame-relay map ip 1.1.24.4 402
>>>>>>> > frame-relay map ip 1.1.24.2 402 broadcast
>>>>>>> > no frame-relay inverse-arp
>>>>>>> > end
>>>>>>> >
>>>>>>> > R4
>>>>>>> >
>>>>>>> > (config-if)#do debug ip ospf ev
>>>>>>> > OSPF events debugging is on
>>>>>>> > R4(config-if)#
>>>>>>> > *Sep 13 11:20:38.131: OSPF: Send hello to 224.0.0.5 area 2 on
>>>>>>> Serial0/1/0
>>>>>>> > from
>>>>>>> > 1
>>>>>>> > .1.24.4
>>>>>>> > *Sep 13 11:20:38.243: OSPF: Rcv pkt from 1.1.24.2, Serial0/0/0,
>>>>>>> area
>>>>>>> > 0.0.0.0
>>>>>>> > mismatch area 0.0.0.2 in the header
>>>>>>> >
>>>>>>> > sh ip ospf ne
>>>>>>> > Neighbor ID Pri State Dead Time Address
>>>>>>> Interface
>>>>>>> > 1.1.3.3 1 FULL/DROTHER 00:01:51 1.1.100.3
>>>>>>> > Serial0/0/0
>>>>>>> > 1.1.6.6 1 FULL/BDR 00:01:47 1.1.100.6
>>>>>>> > Serial0/0/0
>>>>>>> >
>>>>>>> > router ospf 1
>>>>>>> > log-adjacency-changes
>>>>>>> > network 1.1.4.4 0.0.0.0 area 0
>>>>>>> > network 1.1.24.4 0.0.0.0 area 2
>>>>>>> > network 1.1.100.4 0.0.0.0 area 0
>>>>>>> > neighbor 1.1.100.3
>>>>>>> > neighbor 1.1.100.6
>>>>>>> >
>>>>>>> > R2
>>>>>>> >
>>>>>>> >
>>>>>>> > R2(config-if)#
>>>>>>> > *Mar 1 16:50:33.663: OSPF: Send hello to 224.0.0.5 area 2 on
>>>>>>> > FastEthernet0/0
>>>>>>> > fr
>>>>>>> > om 1.1.26.2
>>>>>>> > *Mar 1 16:50:34.491: OSPF: Rcv hello from 1.1.4.4 area 2 from >
>>>>>>> Serial0/0
>>>>>>> > 1.1.24.
>>>>>>> > 4
>>>>>>> > *Mar 1 16:50:34.491: OSPF: Send immediate hello to nbr 1.1.4.4,
>>>>>>> src
>>>>>>> > address
>>>>>>> > 1.1
>>>>>>> > .24.4, on Serial0/0
>>>>>>> > *Mar 1 16:50:34.495: OSPF: Send hello to 224.0.0.5 area 2 on >
>>>>>>> Serial0/0
>>>>>>> > from
>>>>>>> > 1.1
>>>>>>> > .24.2
>>>>>>> > *Mar 1 16:50:34.495: OSPF: End o
>>>>>>> > *Mar 1 16:58:55.403: OSPF: Rcv hello from 1.1.6.6 area 2 from
>>>>>>> > FastEthernet0/0
>>>>>>> > 1
>>>>>>> > .1.26.6
>>>>>>> > *Mar 1 16:58:55.403: OSPF: End of hello processing
>>>>>>> > R2(config-if)#
>>>>>>> > R2(config-if)#do
>>>>>>> > *Mar 1 16:58:58.567: OSPF: Send hello to 224.0.0.5 area 2 on >
>>>>>>> Serial0/0
>>>>>>> > from
>>>>>>> > 1.1
>>>>>>> > .24.2
>>>>>>> > R2(config-if)#do u all
>>>>>>> > All possible debugging has been turned off
>>>>>>> > R2(config-if)#do sh ip ospf ne
>>>>>>> > Neighbor ID Pri State Dead Time Address
>>>>>>> Interface
>>>>>>> > 1.1.4.4 0 INIT/ - 00:00:32 1.1.24.4
>>>>>>> Serial0/0
>>>>>>> > 1.1.6.6 1 FULL/BDR 00:00:33 1.1.26.6
>>>>>>> > FastEthernet0/0
>>>>>>> >
>>>>>>> > interface Serial0/0
>>>>>>> > ip address 1.1.24.2 255.255.255.0
>>>>>>> > encapsulation frame-relay
>>>>>>> > ip ospf network point-to-point
>>>>>>> > frame-relay map ip 1.1.24.2 204
>>>>>>> > frame-relay map ip 1.1.24.4 204 broadcast
>>>>>>> > no frame-relay inverse-arp
>>>>>>> > frame-relay lmi-type cisco
>>>>>>> > end
>>>>>>> >
>>>>>>> > router ospf 1
>>>>>>> > log-adjacency-changes
>>>>>>> > network 1.1.2.2 0.0.0.0 area 2
>>>>>>> > network 1.1.24.2 0.0.0.0 area 2
>>>>>>> > network 1.1.26.2 0.0.0.0 area 2
>>>>>>> >
>>>>>>> > neighborship with R3 and R6 is o.k dont understand why it is not
>>>>>>> comin
>>>>>>> up
>>>>>>> > between R2 and R4 p2p link...
>>>>>>> >
>>>>>>> > Thanks,
>>>>>>> > Naufal
>>>>>>> >
>>>>>>> >
>>>>>>> > See the Web&#39;s breaking stories, chosen by people like you.
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>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>>
>>>>>> Oscar Wilde <http://www.quotationspage.com/quote/923.html> - "It is
>>>>>> better to have a permanent income than to be fascinating."
>>>>>>
>>>>>
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>>>>>
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
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Received on Sun Sep 13 2009 - 12:09:19 ART