IT Blog: IPv6

Below lists some reserved and well-known IPv6 multicast address in the reserved multicast address range (FF00:: to FF0F::) -->

Multicast Address	Multicast Group
FF01::1	All IPv6 nodes within the node-local scope
FF01::2	All IPv6 routers within the node-local scope
FF02::1	All IPv6 nodes within the link-local scope
FF02::2	All IPv6 routers within the link-local scope
FF02::5	All OSPFv3 routers within the link-local scope
FF02::6	All OSPFv3 designated routers within the link-local scope
FF02::9	All RIPng routers within the link-local scope
FF02::A	All EIGRP routers within the link-local scope
FF02::D	All PIM routers within the link-local scope
FF02::1:2	All DHCPv6 agents (servers and relays) within the link-local scope
FF05::2	All IPv6 routers within the site-local scope
FF02::1:FF00:0/104	IPv6 solicited-node multicast address within the link-local scope

Step 1: Enable IPv6 In Global Mode

R1#configure terminal

R1(config)#ipv6 cef

R1(config)#ipv6 unicast-routing

Step 2: Assing IPv6 Address

R1#configure terminal

R1(config)#interface f0/0

R1(config-if)#ipv6 address a:a:a:a::1/64

Step 3: IPv6 Support OSPFv3 (Config)

R1(config)#ipv6 router ospf 1

R1(config-rtr)#router-id 1.1.1.1 (must

configured IPv4 for DR BDR election)

Ospf apply in Interface

R1(config)#interface f0/0

R1(config-if)#ipv6 ospf 1 area 0

Step 4: Create Virtual Link For Area 0 to Area 45

R2(config)#ipv6 router ospf 1

R2(config-rtr)#area 11 virtual-link 3.3.3.3

R3(config)#ipv6 router ospf 1

R3(config-rtr)#area 11 virtual-link 2.2.2.2

Some Show Command:

R1#show ipv6 route

R1#show ipv6 ospf

R1#show ipv6 interface brief

Topology Lab:

Running Configuration of all routers:

R1#sho running-config

hostname R1

ip cef

no ip domain lookup

no ip dhcp use vrf connected

ipv6 unicast-routing

ipv6 cef

no crypto isakmp ccm

interface Loopback0

no ip address

ipv6 address FEC0:1::1/128

ipv6 ospf 1 area 0

interface FastEthernet0/0

no ip address

duplex auto

speed auto

ipv6 address A:A:A:A::1/64

ipv6 ospf 1 area 0

ipv6 router ospf 1

router-id 1.1.1.1

log-adjacency-changes

control-plane

end

R1#show ipv6 route

IPv6 Routing Table - 10 entries

Codes: C - Connected, L - Local, S - Static, R - RIP, B - BGP

U - Per-user Static route

I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary

O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2

ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2

C A:A:A:A::/64 [0/0]

via ::, FastEthernet0/0

L A:A:A:A::1/128 [0/0]

via ::, FastEthernet0/0

OI B:B:B:B::/64 [110/65]