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2011-04-11

[Cisco] RIP over Frame-relay

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  • 2011-04-11

[Cisco] RIP over Frame-relay

Topology

繪圖5 

 

Pre-config and NET file

 

Configure FR as frame-relay switch

FR(config)#int ser 1/1
FR(config-if)#encap frame-relay
FR(config-if)#frame-relay intf-type dce
FR(config-if)#frame-relay route 102 interface ser 1/2 201
FR(config-if)#frame-relay route 103 interface ser 1/3 301
FR(config-if)#no sh
FR(config-if)#
FR(config-if)#int ser 1/2
FR(config-if)#encap frame-relay
FR(config-if)#frame-relay intf-type dce
FR(config-if)#frame-relay route 201 interface ser 1/1 102
FR(config-if)#frame-relay route 203 interface ser 1/3 302
FR(config-if)#no sh
FR(config-if)#
FR(config-if)#int ser 1/3
FR(config-if)#encap frame-relay
FR(config-if)#frame-relay intf-type dce
FR(config-if)#frame-relay route 301 interface ser 1/1 103
FR(config-if)#frame-relay route 302 interface ser 1/2 203
FR(config-if)#no sh

Configure R1~3 frame-relay interface

  1. Turn off inverse-arp on all routers.
  2. R2 and R3 S0/0 must to use point-to-point sub-interface.

  • R1

R1(config-if)#encap frame-relay
R1(config-if)#ip add 10.0.1.1 255.255.255.0
R1(config-if)#no sh
R1(config-if)#no frame-relay inverse-arp
R1(config-if)#frame-relay map ip 10.0.1.1 102 broadcast 
R1(config-if)#frame-relay map ip 10.0.1.2 102 broadcast
R1(config-if)#frame-relay map ip 10.0.1.3 103 broadcast

  • R2

R2(config-if)#encap frame-relay
R2(config-if)#no frame-relay inverse-arp
R2(config-if)#no sh
R2(config-if)#int ser 0/0.201 point-to-point
R2(config-subif)#ip add 10.0.1.2 255.255.255.0
R2(config-subif)#frame-relay interface-dlci 201
R2(config-fr-dlci)#int ser 0/0.203 point-to-point
R2(config-subif)#ip add 10.0.23.2 255.255.255.0
R2(config-subif)#frame-relay interface-dlci 203

  • R3

R3(config-if)#encap frame-relay
R3(config-if)#no frame-relay inverse-arp
R3(config-if)#no sh
R3(config-if)#int ser 0/0.301 point-to-point
R3(config-subif)#ip add 10.0.1.3 255.255.255.0
R3(config-subif)#frame-relay interface-dlci 301
R3(config-fr-dlci)#int ser 0/0.302 point-to-point
R3(config-subif)#ip add 10.0.23.3 255.255.255.0
R3(config-subif)#frame-relay interface-dlci 302

After you finish above config. Routers can ping to each other, but can’t ping to router’s loopback interfaces.

Enable RIPv2 on R1~3

  1. Use manual summary instead of auto-summary.
  2. Use MD5 authentication.
  3. Passive-interface is required.

  • R1

R1(config-router)#version 2
R1(config-router)#no auto-summary
R1(config-router)#network 172.1.0.0
R1(config-router)#network 10.0.0.0
R1(config-router)#passive-interface default
R1(config-router)#no passive-interface ser 0/0
R1(config-router)#exit
R1(config)#
R1(config)#key chain RIP-KEY
R1(config-keychain)#key 1
R1(config-keychain-key)#key-string Cisco
R1(config-keychain-key)#
R1(config-keychain-key)#int ser 0/0
R1(config-if)#ip summary-address rip 172.1.0.0 255.255.252.0
R1(config-if)#ip rip authentication mode md5
R1(config-if)#ip rip authentication key RIP-KEY

  • R2

R2(config-router)#version 2
R2(config-router)#no auto-summary
R2(config-router)#network 172.2.0.0
R2(config-router)#network 10.0.0.0
R2(config-router)#passive-interface default
R2(config-router)#no passive-interface ser 0/0.201
R2(config-router)#no passive-interface ser 0/0.203
R2(config-router)#exit
R2(config)#
R2(config)#key chain RIP-KEY
R2(config-keychain)#key 1
R2(config-keychain-key)#key-string Cisco
R2(config-keychain-key)#
R2(config-keychain-key)#int ser 0/0.201
R2(config-subif)#ip summary-address rip 172.2.0.0 255.255.252.0
R2(config-subif)#ip rip authentication mode md5
R2(config-subif)#ip rip authentication key RIP-KEY
R2(config-subif)#
R2(config-subif)#int ser 0/0.203
R2(config-subif)#ip summary-address rip 172.2.0.0 255.255.252.0
R2(config-subif)#ip rip authentication mode md5
R2(config-subif)#ip rip authentication key RIP-KEY

  • R3

R3(config-router)#version 2
R3(config-router)#no auto-summary
R3(config-router)#network 172.3.0.0
R3(config-router)#network 10.0.0.0
R3(config-router)#passive-interface default
R3(config-router)#no passive-interface ser 0/0.301
R3(config-router)#no passive-interface ser 0/0.302
R3(config-router)#exit
R3(config)#
R3(config)#key chain RIP-KEY
R3(config-keychain)#key 1
R3(config-keychain-key)#key-string Cisco
R3(config-keychain-key)#
R3(config-keychain-key)#int ser 0/0.301
R3(config-subif)#ip summary-address rip 172.3.0.0 255.255.252.0
R3(config-subif)#ip rip authentication mode md5
R3(config-subif)#ip rip authentication key RIP-KEY
R3(config-subif)#
R3(config-subif)#int ser 0/0.302
R3(config-subif)#ip summary-address rip 172.3.0.0 255.255.252.0
R3(config-subif)#ip rip authentication mode md5
R3(config-subif)#ip rip authentication key RIP-KEY

After all, you can ping to each other include loopback interface.

Verity

  • R1

Gateway of last resort is not set

     172.1.0.0/24 is subnetted, 4 subnets
C       172.1.1.0 is directly connected, Loopback1
C       172.1.0.0 is directly connected, Loopback0
C       172.1.3.0 is directly connected, Loopback3
C       172.1.2.0 is directly connected, Loopback2
     172.2.0.0/22 is subnetted, 1 subnets
R       172.2.0.0 [120/1] via 10.0.1.2, 00:00:03, Serial0/0
     172.3.0.0/22 is subnetted, 1 subnets
R       172.3.0.0 [120/1] via 10.0.1.3, 00:00:09, Serial0/0
     10.0.0.0/24 is subnetted, 2 subnets
C       10.0.1.0 is directly connected, Serial0/0
R       10.0.23.0 [120/1] via 10.0.1.3, 00:00:09, Serial0/0
                  [120/1] via 10.0.1.2, 00:00:03, Serial0/0

  • R2

Gateway of last resort is not set

     172.1.0.0/22 is subnetted, 1 subnets
R       172.1.0.0 [120/1] via 10.0.1.1, 00:00:24, Serial0/0.201
     172.2.0.0/24 is subnetted, 4 subnets
C       172.2.2.0 is directly connected, Loopback2
C       172.2.3.0 is directly connected, Loopback3
C       172.2.0.0 is directly connected, Loopback0
C       172.2.1.0 is directly connected, Loopback1
     172.3.0.0/22 is subnetted, 1 subnets
R       172.3.0.0 [120/1] via 10.0.23.3, 00:00:09, Serial0/0.203
     10.0.0.0/24 is subnetted, 2 subnets
C       10.0.1.0 is directly connected, Serial0/0.201
C       10.0.23.0 is directly connected, Serial0/0.203

  • R3

Gateway of last resort is not set

     172.1.0.0/22 is subnetted, 1 subnets
R       172.1.0.0 [120/1] via 10.0.1.1, 00:00:08, Serial0/0.301
     172.2.0.0/22 is subnetted, 1 subnets
R       172.2.0.0 [120/1] via 10.0.23.2, 00:00:06, Serial0/0.302
     172.3.0.0/24 is subnetted, 4 subnets
C       172.3.3.0 is directly connected, Loopback3
C       172.3.2.0 is directly connected, Loopback2
C       172.3.1.0 is directly connected, Loopback1
C       172.3.0.0 is directly connected, Loopback0
     10.0.0.0/24 is subnetted, 2 subnets
C       10.0.1.0 is directly connected, Serial0/0.301
C       10.0.23.0 is directly connected, Serial0/0.302

 

 

Enjoy it ~

 

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