Re: Ospf Point-to-point to multipoint

Based on your descriptions I labbed this up and it works I am able to ping
from R2 to R3 serial interface and R3 loopback interface, Spoke to Spoke.

R1:

!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
!
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 clock rate 2000000
 no frame-relay inverse-arp
!
interface Serial0/0.123 multipoint
 ip address 123.123.123.1 255.255.255.0
 ip ospf network point-to-multipoint
 ip ospf hello-interval 10
 frame-relay map ip 123.123.123.1 102
 frame-relay map ip 123.123.123.2 102 broadcast
 frame-relay map ip 123.123.123.3 103 broadcast
!
router ospf 1
 log-adjacency-changes
 network 1.1.1.1 0.0.0.0 area 0
 network 123.123.123.1 0.0.0.0 area 0
!

R2:

!
interface Loopback0
 ip address 2.2.2.2 255.255.255.255
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 clock rate 2000000
 no frame-relay inverse-arp
!
interface Serial0/0.123 point-to-point
 ip address 123.123.123.2 255.255.255.0
 frame-relay interface-dlci 201
!
router ospf 1
 log-adjacency-changes
 network 2.2.2.2 0.0.0.0 area 0
 network 123.123.123.2 0.0.0.0 area 0
!

R3:

!
interface Loopback0
 ip address 3.3.3.3 255.255.255.255
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 clock rate 2000000
 no frame-relay inverse-arp
!
interface Serial0/0.123 point-to-point
 ip address 123.123.123.3 255.255.255.0
 frame-relay interface-dlci 301
!
router ospf 1
 log-adjacency-changes
 network 3.3.3.3 0.0.0.0 area 0
 network 123.123.123.3 0.0.0.0 area 0
!

R2#ping 3.3.3.3 source loop0

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 3.3.3.3, timeout is 2 seconds:
Packet sent with a source address of 2.2.2.2
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/18/32 ms

R2#ping 123.123.123.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 123.123.123.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/47/140 ms

R2#show frame map
Serial0/0.123 (up): point-to-point dlci, dlci 201(0xC9,0x3090), broadcast
          status defined, active

R1#show frame map
Serial0/0.123 (up): ip 123.123.123.1 dlci 102(0x66,0x1860), static,
              CISCO, status defined, active
Serial0/0.123 (up): ip 123.123.123.2 dlci 102(0x66,0x1860), static,
              broadcast,
              CISCO, status defined, active
Serial0/0.123 (up): ip 123.123.123.3 dlci 103(0x67,0x1870), static,
              broadcast,
              CISCO, status defined, active

On Thu, Mar 7, 2013 at 5:37 PM, Johnny Morris
<johnnymorris01_at_gmail.com>wrote:

> Can you paste your frame interface configuration along with ospf config?
> If your spokes are p2p frame interface then they need to have inter-dlci
> command for frame which should use ospf p2p network type. Is the hub
> configured for multipoint interface and do you have the frame map
> statements on the hub for each of the spoke frame interface IP's?
>
>
> On Thu, Mar 7, 2013 at 5:11 PM, Daniel Barney Briseqo <
> daniel.barney.b_at_hotmail.com> wrote:
>
>> A fram relay map from spoke to spoke is not allowed.
>> I do see the routes, i cant ping spoke to spoke.
>>
>> Daniel Barney Briseqo
>> "El zltimo minuto tambiin tiene 60 segundos"
>> daniel.barney.b_at_hotmail.com
>>
>>
>>
>> On Mar 7, 2013, at 4:03 PM, Petesccie wrote:
>>
>> > Show frame map - I'd say you need a mapping for the route?
>> >
>> > Not split horizon (you can see the route - right?) I'm not sure there
>> even
>> is split horizon for ospf as its a database.
>> >
>> >
>> > Sent from my iPhone
>> >
>> > On 7 Mar 2013, at 21:53, Daniel Barney Briseqo <
>> daniel.barney.b_at_hotmail.com>
>> wrote:
>> >
>> >> Hello there.
>> >> In this topology, over frame relay:
>> >>
>> >> R1-----------R2
>> >> |
>> >> |
>> >> R3
>> >>
>> >> -I only have frame relay maps from, R1 to R2 and from R1 to R3.
>> >> -Frame relay between the spokes is not allowed
>> >> -The spokes must be ospf network type point-to-point and the hub
>> multipoint.
>> >> -I have changed the hello timers, so neighbors are UP.
>> >>
>> >> I have connectivity from hub to both spokes, but I dont have from
>> spoke to
>> >> spoke.
>> >> Is this a split horizon issue?
>> >>
>> >> Rutes are being propagated well, I have announced the loopbacks on
>> ospf and
>> I
>> >> can see all of them on each router.
>> >>
>> >> Daniel Barney Briseqo
>> >> "El zltimo minuto tambiin tiene 60 segundos"
>> >> daniel.barney.b_at_hotmail.com
>> >>
>> >>
>> >> Blogs and organic groups at http://www.ccie.net
>> >>
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Received on Thu Mar 07 2013 - 17:58:05 ART