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Configuring BGP4+ neighbors using global or site-local IPv6

addresses

To configure BGP4+ neighbors using global or link-local IPv6 addresses, you must add the IPv6

address of a neighbor in a remote autonomous system to the BGP4+ neighbor table of the local

device. You must repeat this procedure for each neighbor that you want to add to a local device.

For example, to add the IPv6 address 2001:db8:93e8:cc00::1 of a neighbor in remote AS 4500 to the

BGP4+ neighbor table of a device, enter commands such as the following:

device(config-/jointfilesconvert/1441084/bgp-router)# address-family ipv6 unicast

device(config-/jointfilesconvert/1441084/bgp-ipv6u)# neighbor 2001:db8:93e8:cc00::1 remote-as 4500

Syntax: neighbor ipv6-address remote-as as-number

The ipv6-address parameter specifies the IPv6 address of the neighbor. You must specify the ipv6-

address parameter in hexadecimal using 16-bit values between colons as documented in RFC 2373.

The as-number parameter indicates the number of the AS in which the neighbor resides.

To delete the neighbor from the BGP4+ neighbor table, enter the no form of this command.

Adding BGP4+ neighbors using link-local addresses

To configure BGP4+ neighbors that use link-local addresses, you must do the following:

• Add the IPv6 address of a neighbor in a remote autonomous system to the BGP4+ neighbor table

of the local device.

• Identify the neighbor interface over which the neighbor and local device will exchange prefixes.

• Configure a route map to set up a global next hop for packets destined for the neighbor.

Adding BGP4+ neighbor

To add the IPv6 link-local address fe80:4398:ab30:45de::1 of a neighbor in remote autonomous

system 1000 to the BGP4+ neighbor table of a device, enter the following commands:

device(config-/jointfilesconvert/1441084/bgp-router)# address-family ipv6 unicast

device(config-/jointfilesconvert/1441084/bgp-ipv6u)# neighbor fe80:4398:ab30:45de::1 remote-as 1000

Syntax: neighbor ipv6-address remote-as as-number

NOTE

The example above adds an IPv6 neighbor at the BGP4+ unicast address family configuration level.

This neighbor, by default, is enabled to exchange BGP4+ unicast prefixes. However, if you add an

IPv6 neighbor while at the global BGP configuration or IPv4 BGP unicast address family configuration

level, the neighbor will not exchange BGP4+ unicast prefixes until you explicitly enable it to do so by

entering the neighbor activate command at the BGP4+ unicast address family configuration level.

The ipv6-address parameter specifies the IPv6 link-local address of the neighbor. A link-local address

has a fixed prefix of FE80::/10. You must specify the ipv6-address parameter in hexadecimal using 16-

bit values between colons as documented in RFC 2373.

The as-number parameter indicates the number of the AS in which the neighbor resides.

To delete the neighbor from the BGP4+ neighbor table, enter the no form of this command.

Configuring BGP4+ neighbors using global or site-local IPv6 addresses

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Brocade FastIron Ethernet Switch Layer 3 Routing Configura Manuel d'utilisateur Page 528