Re: OSPF Neighbor over ISDN

From: Atif Awan (atifawan@xxxxxxxxxxx)
Date: Sat Jan 20 2001 - 17:38:05 GMT-3


   
Why are you using the ip ospf network non-broadcast command ?
You need to explicitly state your ospf neighbor using the command neighbor
x.x.x.x where x.x.x.x is the ip address of the neighbor. This should enable
you to form adjacencies. This command is only needed in non-broadcast
network types.

Regards
Atif

>From: "Elton Fontaine" <Elton_Fontaine@ins.com>
>Reply-To: "Elton Fontaine" <Elton_Fontaine@ins.com>
>To: <ccielab@groupstudy.com>
>Subject: OSPF Neighbor over ISDN
>Date: Sat, 20 Jan 2001 09:15:45 -0800
>
>I am not able to get 2 routers to form an OSPF neighbor relationship over
>an
>ISDN Line. In the past this has always worked. When the ISDN line comes us
>the two routers form a neighbor relationship with the dead timer going to
>null. I am able to ping across the link and a "Show ip ospf neigh" command
>verifies that each neighbor sees int BRI 0 in area 10. Debug ip ospf neigh
>and ospf lsa indicates that neither hello packets are not being received
>over the isdn line.
>
>Any ideas?
>
>
>Thank you
>Elton
>
>The relevant configurations are as follows.
>
>
>R5
>
>interface BRI0
> ip address 172.168.65.2 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> no ip route-cache
> ip ospf network non-broadcast
> ip ospf interface-retry 0
> ip ospf demand-circuit
> no ip mroute-cache
> dialer map ip 172.168.65.1 broadcast 4671002
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 0146720010
> isdn spid2 0146720020
> no cdp enable
>!
>router ospf 100
> area 10 virtual-link 172.168.30.97
> redistribute igrp 100 metric 10 metric-type 1 subnets
> network 137.20.20.0 0.0.0.255 area 0
> network 172.168.65.2 0.0.0.0 area 10
> network 172.168.100.5 0.0.0.0 area 10
>
>
>
>R6
>
>interface BRI0
> ip address 172.168.65.1 255.255.255.0
> no ip directed-broadcast
> encapsulation ppp
> no ip route-cache
> ip ospf network non-broadcast
> ip ospf interface-retry 0
> ip ospf demand-circuit
> no ip mroute-cache
> dialer map ip 172.168.65.2 broadcast 4672001
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 0146710010
> isdn spid2 0146710020
> no cdp enable
>!
>router ospf 100
> network 172.168.60.1 0.0.0.0 area 10
> network 172.168.65.1 0.0.0.0 area 10
> network 172.168.100.6 0.0.0.0 area 10
>



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:27:37 GMT-3