Configure the IPv6 Route Redistribution Policy for Routing Protocols

1. Review the routing information in the routing table on switch 1.

   SEFOS# show ipv6 route
    
   VRF    Name:      default
   IPv6 Routing Table
   Codes : C - Connected, S - Static
           O - OSPF, R - RIP, B - BGP
   C   fec0::1111:0:0/96   [1/1]
           via ::, vlan1
   C   fec0::2222:0:0/96   [1/1
           via ::, vlan3
   

2. Review the routing information in the routing table on switch 2.

   SEFOS# show ipv6 route
    
   IPv6 Routing Table:
   Codes : C - Connected, S - Static
           O - OSPF, R - RIP, B - BGP
   C   fec0::2222:0:0/96   [1/1]
           via ::, vlan3
   C   fec0::3333:0:0/96   [1/1]
           via ::, vlan2
   

3. Review the routing information in the routing table on switch 3.

   SEFOS# show ipv6 route
    
   IPv6 Routing Table:
   Codes : C - Connected, S - Static
           O - OSPF, R - RIP, B - BGP
   C   fec0::3333:0:0/96   [1/1]
           via ::, vlan2
   C   fec0::4444:0:0/96   [1/1]
           via ::, vlan1
   

   All of the connected routes are listed in all of the routing tables.

4. On switch 1, configure the redistribution policy for the destination IP so that the redistribution of that route to the destination protocol is permitted or not permitted by switch 2.

   SEFOS# configure terminal
   SEFOS(config)# redistribute-policy ipv6 deny fec0::4444:0:0 96 rip ospf
   

   Redistribution of each route is permitted by default in each router. If the redistribution of a particular route is to be denied, configure the redistribution policy for that route.

5. On switch 1, enable the OSPF routing protocol for the VLAN 3 interface.

   SEFOS(config)# ipv6 router ospf
   SEFOS(config-router)# router-id 1.1.1.1
   SEFOS(config-router)# ASBR Router
   SEFOS(config-router)# redistribute connected
   SEFOS(config-router)# exit
   SEFOS(config)# interface vlan 3
   SEFOS(config-if)# ipv6 ospf area 0.0.0.0
   SEFOS(config-if)# end
   

6. On switch 2, enable the OSPF routing protocol for the VLAN 3 interface.

   SEFOS# configure terminal
   SEFOS(config)# ipv6 router ospf
   SEFOS(config-router)# router-id 2.2.2.2
   SEFOS(config-router)# ASBR Router
   SEFOS(config-router)# redistribute connected
   SEFOS(config-router)# redistribute ripng
   SEFOS(config-router)# exit
   SEFOS(config)# interface vlan 3
   SEFOS(config-if)# ipv6 ospf area 0.0.0.0
   SEFOS(config-if)# exit
   

7. On switch 2, enable the RIP routing protocol for the VLAN 2 interface.

   SEFOS(config)# ipv6 router rip
   SEFOS(config-router)# redistribute connected
   SEFOS(config-router)# redistribute ospf
   SEFOS(config-router)# exit
   SEFOS(config)# interface vlan 2
   SEFOS(config-if)# ipv6 rip enable
   SEFOS(config-if)# end
   

8. On switch 3, enable the RIP routing protocol for the VLAN 2 interface.

   SEFOS# configure terminal
   SEFOS(config)# ipv6 router rip
   SEFOS(config-router)# redistribute connected
   SEFOS(config-router)# exit
   SEFOS(config)# interface vlan 2
   SEFOS(config-if)# ipv6 rip enable
   SEFOS(config-if)# end
   

9. Review the routing information in the routing table for switch 1.

   SEFOS# show ipv6 route
    
   IPv6 Routing Table:
   Codes : C - Connected, S - Static
           O - OSPF, R - RIP, B - BGP
   C   fec0::1111:0:0/96   [1/1]
           via ::, vlan1
   C   fec0::2222:0:0/96   [1/1]
           via ::, vlan3
   O   fec0::3333:0:0/96   [10/110]
           via fe80::203:2ff:fe03:201, vlan3
   

   The information about route fec0::3333:0:0 is not learned because the policy is set to deny. To permit the redistribution of this route, execute the following commands in switch 2:

   SEFOS# configure terminal
   SEFOS(config)# no redistribute-policy ipv6 fec0::4444:0:0 96
   SEFOS(config)# redistribute-policy ipv6 permit fec0::4444:0:0 96 rip ospf
   SEFOS(config)# exit
   SEFOS# show ipv6 route
    
   ...
   O   fec0::4444:0:0/96   [10/110]
           via fe80::203:2ff:fe03:201, vlan3
   

10. Review the routing information in the routing table on switch 2.

    SEFOS# show ipv6 route
     
    IPv6 Routing Table:
    Codes : C - Connected, S - Static
            O - OSPF, R - RIP, B - BGP
    O   fec0::1111:0:0/96   [10/110]
            via fe80::201:2ff:fe03:401, vlan3
    C   fec0::2222:0:0/96   [1/1]
            via ::, vlan3
    C   fec0::3333:0:0/96   [1/1]
            via ::, vlan2
    R   fec0::4444:0:0/96   [2/120]
            via fe80::203:2ff:fe03:401, vlan2
    

11. Review the routing information in the routing table on switch 3.

    The routes to all of the networks are learned using the routing protocols in each router after the route redistribution is configured.

    SEFOS# show ipv6 route
     
    IPv6 Routing Table:
    Codes : C - Connected, S - Static
            O - OSPF, R - RIP, B - BGP
    R   fec0::1111:0:0/96   [2/120]
            via fe80::202:2ff:fe03:401, vlan2
    R   fec0::2222:0:0/96   [2/120]
            via fe80::202:2ff:fe03:401, vlan2
    C   fec0::3333:0:0/96   [1/1]
            via ::, vlan2
    C   fec0::4444:0:0/96   [1/1]
            via ::, vlan1