RE: RIPv2 Over framerelay

Divin,

RIP on NBMA main interfaces is disabled by default, but enabled on subinterfaces and other encapsulation types.

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of Divin Mathew John
Sent: Friday, April 17, 2009 10:28 PM
To: Cisco certification
Subject: RIPv2 Over framerelay

I kinda have a Hub and spoke topology.

R2 is the Hub and R1 and R2 are the spokes. Now i ran RIPv2 on all the
routers. I did establish the layer-2 reach ability. Now to my suprise
without turning off splithorizon on the interface at R2 i seem to get
all the routes. Routes from both R1 and R2. there seems to be no
problems in the routing table . and i can reach all the loopbacks of
all the routers from anywhere on my topology. BUT. according to the
books we gotta disable split horizon on the interfaces for all routes
to appear on the routing table on all routers.! my config is as
follows

R1

interface Loopback0
 ip address 1.1.1.1 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.1 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
 clock rate 64000
 frame-relay map ip 192.168.1.2 102 broadcast
 frame-relay map ip 192.168.1.3 102 broadcast
 no frame-relay inverse-arp
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!
router rip
 version 2
 network 1.0.0.0
 network 192.168.1.0
 no auto-summary
!
ip http server
no ip http secure-server
*******************************************************

R2

interface Loopback0
 ip address 2.2.2.2 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.2 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
 clock rate 64000
 frame-relay map ip 192.168.1.1 201 broadcast
 frame-relay map ip 192.168.1.3 203 broadcast
 no frame-relay inverse-arp
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!
router rip
 version 2
 network 2.0.0.0
 network 192.168.1.0
 no auto-summary
!
ip http server
no ip http secure-server
!
!

*******************************
R3

interface Loopback0
 ip address 3.3.3.3 255.255.255.0
!
interface Serial0/0
 ip address 192.168.1.3 255.255.255.0
 encapsulation frame-relay
 serial restart-delay 0
 clock rate 64000
 frame-relay map ip 192.168.1.1 302 broadcast
 frame-relay map ip 192.168.1.2 302 broadcast
 no frame-relay inverse-arp
!
interface Serial0/1
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/2
 no ip address
 shutdown
 serial restart-delay 0
!
interface Serial0/3
 no ip address
 shutdown
 serial restart-delay 0
!
router rip
 version 2
 network 3.0.0.0
 network 192.168.1.0
 no auto-summary
!
ip http server
no ip http secure-server
!

***********************************
R3#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 [120/2] via 192.168.1.1, 00:00:24, Serial0/0
     2.0.0.0/24 is subnetted, 1 subnets
R 2.2.2.0 [120/1] via 192.168.1.2, 00:00:24, Serial0/0
     3.0.0.0/24 is subnetted, 1 subnets
C 3.3.3.0 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, Serial0/0

R1#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
C 1.1.1.0 is directly connected, Loopback0
     2.0.0.0/24 is subnetted, 1 subnets
R 2.2.2.0 [120/1] via 192.168.1.2, 00:00:16, Serial0/0
     3.0.0.0/24 is subnetted, 1 subnets
R 3.3.3.0 [120/2] via 192.168.1.3, 00:00:16, Serial0/0
C 192.168.1.0/24 is directly connected, Serial0/0

R2#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     1.0.0.0/24 is subnetted, 1 subnets
R 1.1.1.0 [120/1] via 192.168.1.1, 00:00:29, Serial0/0
     2.0.0.0/24 is subnetted, 1 subnets
C 2.2.2.0 is directly connected, Loopback0
     3.0.0.0/24 is subnetted, 1 subnets
R 3.3.3.0 [120/1] via 192.168.1.3, 00:00:10, Serial0/0
C 192.168.1.0/24 is directly connected, Serial0/0

What am i missing here? . I tried with EIGRP too.. Split horizon seems
to be the problem there. R3 doesnt get R1's loopback and viceversa.!
Thanking You

Yours Sincerely

Divin Mathew John
divinjohn_at_gmail.com
divin_at_dide3d.com
http://www.dide3d.com
+91 9945430983
+91 9846697191
+974 5008916
PGP PUBLIC KEY BLOCK @ http://www.dide3d.com/divin_Public_PGP_key.txt

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Received on Fri Apr 17 2009 - 22:37:48 ART