From: subodh.rawat@wipro.com
Date: Mon Jan 14 2008 - 06:28:44 ARST
I think neigor command is needed I n two cases:
1. NBMA (or natural Frame Relay main interface)
2. P-2-M Non Broadcast.
It is not required in P-2-M
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Mounir Mohamed
Sent: Sunday, January 13, 2008 3:32 PM
To: Gupta, Gopal (NWCC)
Cc: ccielab@groupstudy.com
Subject: Re: OSPF Neighbor Command Issue
on OSPF the neighbor command only supported on NBMA and
point-to-multipoint network
for examplein u need this type of network in order to assign different
cost for LSA's received from specific neighbors.
On Jan 11, 2008 2:48 PM, Gupta, Gopal (NWCC) <gopal.gupta@hp.com> wrote:
> Hi experts,
>
> There seems to be some problem with OSPF
> R2 is connected to R3 with Ethernet(Broadcast Mode) and with 2 serial
> links to R1 (NBMA Mode) i am not allowed to enter neighbor command
> under the router ospf 1
>
> when i give this command :-
>
> router ospf 1
> neighbor 2.2.12.1
>
> it gives the error --->
>
> "OSPF: Neighbor command is allowed only on NBMA and
> point-to-multipoint networks"
> "OSPF: Neighbor command is allowed only on NBMA and
> point-to-multipoint networks"
>
> is this the default behavior or i am missing something here????
>
> It takes the neighbor command before i give the ethernet link network
> command. but when i reload it...it again generates the above error
> message and neighbor commands are automatically removed from the
> Router ospf configuration...following is the output after i reloaded
> the Router and it disregarded the neighbor commands.....
>
> My question is "does the router not take the neighbor command for NBMA
> under router ospf, when it has ethernet link also for ospf, on the
> same router???"
> I have the following config :---
>
> router ospf 1
> router-id 2.2.2.2
> log-adjacency-changes
> network 2.2.2.2 0.0.0.0 area 2
> network 2.2.12.2 0.0.0.0 area 2
> network 2.2.12.6 0.0.0.0 area 2
>
> neighbor 2.2.12.1 <----------Missing here
> neighbor 2.2.12.5 <----------Missing here
>
> interface Serial2/2
> ip address 2.2.12.6 255.255.255.252
> encapsulation frame-relay
> serial restart-delay 0
> clock rate 64000
> frame-relay map ip 2.2.12.5 211 broadcast frame-relay map ip
> 2.2.12.6 211 no frame-relay inverse-arp
>
>
> interface Ethernet0/1
> ip address 2.2.28.2 255.255.255.0
> ip pim sparse-dense-mode
> ip ospf priority 0
> half-duplex
> end
> !
> interface Serial2/1
> ip address 2.2.12.2 255.255.255.252
> encapsulation frame-relay
> serial restart-delay 0
> frame-relay map ip 2.2.12.1 201 broadcast frame-relay map ip
> 2.2.12.2 201 no frame-relay inverse-arp end
>
> Thanks,
> Gops
>
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-- Best Reagrds, Mounir Mohamed, CCIE #19573
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