IPv6 unicast address family
The IPv6 unicast address family configuration level provides access to commands that allow you to configure BGP4+ unicast routes. The commands that you enter at this level apply only to the IPv6 unicast address family.
BGP4+ supports the IPv6 address family configuration level.
You can generate a configuration for BGP4+ unicast routes that is separate and distinct from configurations for IPv4 unicast routes.
The commands that you can access while at the IPv6 unicast address family configuration level are also available at the IPv4 unicast address family configuration levels. Each address family configuration level allows you to access commands that apply to that particular address family only.
Where relevant, this chapter discusses and provides IPv6-unicast-specific examples. You must first configure IPv6 unicast routing for any IPv6 routing protocol to be active.
The following configuration options are allowed under BGP IPv6 address family unicast mode:
device(config-bgp-ipv6u)# ?
Possible completions:
aggregate-address Configure BGP aggregate entries
always-propagate Allow readvertisement of best BGP routes not
in IP Forwarding table
bgp-redistribute-internal Allow redistribution of iBGP routes into IGPs
client-to-client-reflection Configure client to client route reflection
dampening Enable route-flap dampening
default-information-originate Originate Default Information
default-metric Set metric of redistributed routes
graceful-restart Enables the BGP graceful restart capability
maximum-paths Forward packets over multiple paths
multipath Enable multipath for ibgp or ebgp neighbors
only
neighbor Specify a neighbor router
network Specify a network to announce via BGP
next-hop-enable-default Enable default route for BGP next-hop lookup
next-hop-recursion Perform next-hop recursive lookup for BGP
route
redistribute Redistribute information from another
routing protocol
table-map Map external entry attributes into routing
table
update-time Configure igp route update interval
The following neighbor configuration options are allowed under BGP IPv6 address family unicast mode:
device(config-bgp-ipv6u)# neighbor 2001:2018:8192::125 ?
Possible completions:
activate Allow exchange of route in the current family mode
advertisement-interval Minimum interval between sending BGP routing updates
allowas-in Accept as-path with my AS present in it
as-override Override matching AS-number while sending update
capability Advertise capability to the peer
default-originate Originate default route to peer
description Neighbor by description
ebgp-btsh Enable EBGP TTL Security Hack Protection
ebgp-multihop Allow EBGP neighbors not on directly connected
networks
filter-list Establish BGP filters
local-as Assign local-as number to neighbor
maximum-prefix Maximum number of prefix accept from this peer
next-hop-self Disable the next hop calculation for this neighbor
password Enable TCP-MD5 password protection
peer-group Assign peer-group to neighbor
prefix-list Prefix List for filtering routes
remote-as Specify a BGP neighbor
remove-private-as Remove private AS number from outbound updates
route-map Apply route map to neighbor
route-reflector-client Configure a neighbor as Route Reflector client
send-community Send community attribute to this neighbor
shutdown Administratively shut down this neighbor
soft-reconfiguration Per neighbor soft reconfiguration
timers BGP per neighbor timers
unsuppress-map Route-map to selectively unsuppress suppressed routes
update-source Source of routing updates
weight Set default weight for routes from this neighbor