IPv6 Static Routing

IPv6 routing works the same as IPv4 routing.

However, the two processes are separate on the router, and the two routing tables are separate as well.

IPv4 routing is enabled by default.

IPv6 routing is disabled by default, and must be enabled with:

ipv6 unicast-routing

If IPv6 routing is disabled, the router will be able to send and receive IPv6 traffic, but will not route IPv6 traffic (=will not forward it between networks).

A connected network route is automatically added for each connected network.

A local host route is automatically added for each address configured on the router.

Commands

ipv6 router <destination/prefix-length> {<next-hop>|<exit-interface [next-hop]>} [<ad>]

Directly attached static route

Only the exit interface is specified.

ipv6 route <destination/prefix-length> <exit-interface>

R1(config)# ipv6 route 2001:db8:0:3::/64 g0/0

In IPv6, you can't use directly attached static routes if the interface is an Ethernet interface. So this command wouldn't work.

Recursive static route

Only the next hop is specified.

ipv6 route <destination/prefix-length> <next-hop>

R1(config)# ipv6 route 2001:db8:0:3::/64 2001:db8:0:12::2

Fully specified static route

Both the exit interface and next hop are specified.

ipv6 route <destination/prefix-length> <exit-interface> <next-hop>

R1(config)# ipv6 route 2001:db8:0:3::/64 g0/0 2001:db8:0:12::2

Network route

R1(config)# ipv6 route 2001:db8:0:3::/64 2001:db8:0:12::2

Host route

R2(config)# ipv6 route 2001:db8:0:1::100/128 2001:db8:0:12::1

R2(config)# ipv6 route 2001:db8:0:1::100/128 2001:db8:0:23::2

Default route

R2(config)# ipv6 route ::0/0 2001:db8:0:23::1

Floating Static

Using the ad to set floating static.

If the main route to the destination was learned via OSPF, for example, you'll need to set the static route's AD to higher than 110, because OSPF's AD is 110.

Link-local Next-Hops