Re: OSPF problem..pls help.

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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>>>>>> >
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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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>>>>
>>>
>>> --------------------------------------------------------------------------------
>>>
>>>
>>>
>>>
>>>
>>> No virus found in this incoming message.
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>>> Version: 8.5.409 / Virus Database: 270.13.94/2367 - Release Date:
>>> 09/13/09 05:50:00
>>>
>>>
>> ------------------------------
>>
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>> Checked by AVG - www.avg.com
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>> 05:50:00
>>
>>
>
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Received on Sun Sep 13 2009 - 12:08:15 ART