Advertising the default BGP4+ route

The default route must be present in the local IPv6 route table.

Enter the configure terminal command to access global configuration mode.
```
device# configure terminal
```
Enter the router bgp command to enable BGP routing.
```
device(config)# router bgp
```
Enter the address-family ipv6 unicast command to enter IPv6 address family unicast configuration mode.
```
device(config-bgp-router)# address-family ipv6 unicast
```
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