From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Fri Apr 21 2006 - 04:26:09 GMT-3
in such a topology spokes will never form an adjacency with each other,
since OSPF multicast packets have TTL 1, you need to have a direct
L2-to-L3 FR mapping between them to achieve what you want...
why would you need that?
on 20/04/2006 20:13 Brent Foster wrote:
> Question for the gurus...
>
> How can I get the spoke routers in a hub & spoke frame
> relay to peer with each other based on this
> configuration:
>
> /R2(spoke)
> /
> R1(hub)
> \
> \R5(spoke)
>
> R1:
> interface Serial3/0.100 multipoint
> ip address 10.100.10.1 255.255.255.248
> ip ospf network broadcast
> no arp frame-relay
> frame-relay map ip 10.100.10.2 102 broadcast
> frame-relay map ip 10.100.10.5 105 broadcast
> no frame-relay inverse-arp
> !
> router ospf 100
> router-id 10.100.100.1
> network 10.100.0.0 0.0.255.255 area 0
>
> R2:
> interface Serial4/0.201 point-to-point
> ip address 10.100.10.2 255.255.255.248
> ip ospf network broadcast
> ip ospf priority 0
> frame-relay interface-dlci 201
> !
> router ospf 100
> router-id 10.100.100.2
> network 10.100.0.0 0.0.255.255 area 0
>
> R5:
> interface Serial4/0.501 point-to-point
> ip address 10.100.10.5 255.255.255.248
> ip ospf network broadcast
> ip ospf priority 0
> frame-relay interface-dlci 501
> !
> router ospf 100
> router-id 10.100.100.5
> network 10.100.0.0 0.0.255.255 area 0
>
> The spokes are peering with the hub but not with each
> other.
>
> router1#show ip ospf neigh
>
> Neighbor ID Pri State Dead Time
> Address Interface
> 10.100.100.2 0 FULL/DROTHER 00:00:36
> 10.100.10.2 Serial3/0.100
> 10.100.100.5 0 FULL/DROTHER 00:00:35
> 10.100.10.5 Serial3/0.100
>
> Also, the spokes can ping each other just fine. Does
> this have to do with the fact that the spoke routers
> are using the "point-to-point" sub-interface type?
>
> Brent Foster
> jbrentfoster@yahoo.com
>
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This archive was generated by hypermail 2.1.4 : Mon May 01 2006 - 11:41:58 GMT-3