From: Alexei Monastyrnyi (alexeim@orcsoftware.com)
Date: Fri Apr 21 2006 - 04:28:17 GMT-3
via GRE it would be a peering on a different L3 subnet.... don't think
it is the case here :-)
on 20/04/2006 21:20 Julius Kinsler wrote:
> A GRE tunnel might work in this situation, you might want to try that.
> That's the only other thing I can think of, if you really want to try
> and make these routers peer.
>
> -----Original Message-----
> From: Brent Foster [mailto:jbrentfoster@yahoo.com]
> Sent: Thursday, April 20, 2006 3:13 PM
> To: Julius Kinsler
> Cc: ccielab@groupstudy.com
> Subject: RE: OSPF NBMA Question
>
> I'm just testing to see if there is any way to get the spokes to peer
> with each other without a dedicated DLCI. I suspect there is not!
>
> --Brent
>
> --- Julius Kinsler <jkinsler@harbortech.com> wrote:
>
>
>> Well Spokes can't be neighbor with each other. The TTL of an OSPF
>> Hello packet is 1 so it'll never make it passed the hub.
>> But you could
>> possibly try if its allowed changing the point to point network type
>> to multi-point and mapping a DLCI from R2 directly to
>> R5 and vice versa.
>> Why do you think they need to peer with each other?
>>
>> -----Original Message-----
>> From: nobody@groupstudy.com
>> [mailto:nobody@groupstudy.com] On Behalf Of Brent Foster
>> Sent: Thursday, April 20, 2006 2:13 PM
>> To: ccielab@groupstudy.com
>> Subject: OSPF NBMA Question
>>
>> 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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>
> Brent Foster
> jbrentfoster@yahoo.com
>
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