KB.15.15

7 IPv6 Static Routing

NOTE: All commands previously in the Summary of commands table are indexed under the entry

Command syntax.

Adding static and null routes to IPv6 table

This feature enables you to create static routes (including null routes with or without ICMP notification

to the sender) by adding such routes directly to the route table in the routing switch.

Syntax:

[no] ipv6 route dest-ipv6-addr/prefix-length [ next-hop-gateway-addr |

vlan vid | tunnel tunnel-id | blackhole | reject ] [ distance 1 - 255 ]

dest-ipv6-addr/prefix-length

Network prefix for the destination on IPv6 address.

[ next-hop-gateway-addr | vlan vid | tunnel tunnel-id ]

The gateway for reaching the destination.

The next-hop address option (link-local or global unicast) is not required to be

directly reachable on a local subnet. (If it is not directly reachable, the route is

added to the routing table when a path to this address is learned.)

If the next-hop address is link-local, it must include both the address and the

applicable VLAN VID.

For example: FE80::127%vlan10,where VLAN 10 is the interface where

FE80::127 exists. For a tunnel, it would be FE80::127%tun3.

blackhole

Specifies a null route where IP traffic for the specified destination is discarded

and no ICMP error notification is returned to the sender.

reject

Specifies a null route where IP traffic for the specified destination is discarded

and an ICMP error notification is returned to the sender.

distance 1 - 255

Specifies the administrative distance to associate with a static route.

Default: 1; Range: 1 - 255

The no form of the command deletes the specified route from the routing table for

the specified destination next-hop pair.

Example 118 (page 181) configures two static routes for traffic delivery and identifies two other

null routes for which traffic should be discarded instead of forwarded.

180 IPv6 Static Routing