From: Sandro Ciffali (sandyccie@xxxxxxxxx)
Date: Sat Mar 02 2002 - 20:22:32 GMT-3
Rob,
You got a point to multipoint sub and no ip ospf network statement, This
means OSPF would treat this sub and all the remaining two physical int as
NBMA, In NBMA and ospf you need to manualy form neighbor relation from spoke
to hub only, there is not spoke to spoke relation in nbma, So either you
need two neighbor statement on the hub pointing to the spoke or one neighbor
statement on each spoke pointing to the hub. Do not forget to make ip ospf
priority on spoke zero so that they never become DR.
Hope this helps
Sandro
----- Original Message -----
From: "Robert M. Yee" <ryee@bluespud.com>
To: <ccielab@groupstudy.com>
Sent: Friday, March 01, 2002 2:44 PM
Subject: OSPF neighbor stuck in ATTEMPT/DROTHER
> Hi all,
>
> I'm trying out a config for OSPF running over frame relay. I have 3
routers, r1, r2 and r3. Router r1 is the hub router set with a a
subinterface and r2 and r3 are setup with physical interfaces.
>
> I have turned off inverse arp on all routers and am using 'frame-relay
map' statements with broadcast option set.
>
> I believe that the frame config is setup correctly, My PVCs are up, and I
can piong from each router.
>
> However, when I configure OSPF on this network, I can only form adjacenies
from the spoke<-->hub, but not from spoke<-->spoke.
>
> Here are the consig for the hub and one of the spokes (the other is just a
mirror).
>
> R1 (HUB)
> version 12.1
> hostname r1
> !
> interface Serial0
> no ip address
> encapsulation frame-relay
> frame-relay lmi-type cisco
> !
> interface Serial0.1 multipoint
> ip address 172.16.1.1 255.255.255.0
> frame-relay map ip 172.16.1.3 103 broadcast
> frame-relay map ip 172.16.1.2 102 broadcast
> no frame-relay inverse-arp
> !
> router ospf 1
> log-adjacency-changes
> network 172.16.1.0 0.0.0.255 area 0
> neighbor 172.16.1.3 priority 1
> neighbor 172.16.1.2 priority 1
> R2 (Spoke)
> version 12.1
> hostname r2
> !
> interface Serial0
> ip address 172.16.1.2 255.255.255.0
> encapsulation frame-relay
> frame-relay map ip 172.16.1.3 201 broadcast
> frame-relay map ip 172.16.1.1 201 broadcast
> no frame-relay inverse-arp
> frame-relay lmi-type cisco
> !
> router ospf 1
> log-adjacency-changes
> network 172.16.1.0 0.0.0.255 area 0
> neighbor 172.16.1.1 priority 1
> neighbor 172.16.1.3
>
> ***
> r2#sh ip ospf nei
> Neighbor ID Pri State Dead Time
Address Interface
> 192.168.1.1 1 FULL/BDR 00:01:43 172.16.1.1
Serial0
> N/A 0 ATTEMPT/DROTHER - 172.16.1.3
Serial0
>
> Thanks,
>
> Robert
This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:56:51 GMT-3