Advertising the default BGP4+ route
A BGP device can be congured to advertise the default IPv6 route to all BGP4+ neighbors and to install that route in the local BGP4+
route table.
The default route must be present in the local IPv6 route table.
1. Enter the congure terminal command to access global conguration mode.
device# configure terminal
2. Enter the router bgp command to enable BGP routing.
device(config)# router bgp
3. Enter the address-family command and specify the ipv6 and unicast keywords to enter IPv6 address family
conguration
mode.
device(config-bgp-router)# address-family ipv6 unicast
4. Enter the default-information-originate command to advertise the default IPv6 route to all BGP4+ neighbors and to install that
route in the local BGP4+ route table.
device(config-bgp-ipv6u)# default-information-originate
The following example enables a BGP4+ device to advertise the default IPv6 route to all BGP4+ neighbors and to install that route in the
local BGP4+ route table.
device# configure terminal
device(config)# router bgp
device(config-bgp-router)# address-family ipv6 unicast
device(config-bgp-ipv6u)# default-information-originate
Advertising the default BGP4+ route to a
specic neighbor
A BGP device can be
congured to advertise the default IPv6 route to a specic neighbor.
1. Enter the congure terminal command to access global conguration mode.
device# configure terminal
2. Enter the router bgp command to enable BGP routing.
device(config)# router bgp
3. Enter the local-as command to congure the autonomous system number (ASN) in which your device resides.
device(config-bgp-router)# local-as 1000
4. Enter the address-family command and specify the ipv6 and unicast keywords to enter IPv6 address family conguration
mode.
device(config-bgp-router)# address-family ipv6 unicast
5. Enter the neighbor default-originate command and specify an IPv6 address to enable the BGP4+ device to advertise the
default IPv6 route to a specic neighbor.
device(config-bgp-ipv6u)# neighbor 2001:db8:93e8:cc00::1 default-originate
Conguring BGP4+
FastIron Ethernet Switch Layer 3 Routing
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