Setup Guide

Conguring IPv6 MBGP between peers
To congure IPv6 MBGP, use the following commands.
Following are the steps to congure IPv6 MBGP between two peers. The neighbors that are congured using neighbor remote-as
command exchange only the IPv4 unicast address prexes. In order to exchange IPv6 address prexes, you have to activate the neighbors
using
neighbor activate command inside the address-family conguration.
NOTE: When conguring a BGP peer under IPv6 address-family, both IPv4 and IPv6 prexes are sent by default. If you do not
want a peer to exchange IPv4 prexes, manually deactivate the peer with the no neighbor activate command under the
CONFIGURATION-ROUTER-BGP mode.
• Enter the router conguration mode and the AS number.
CONFIG mode
router bgp as-number
• Add the IP address of the neighbor for the specied autonomous system.
CONFIG-ROUTER-BGP mode
neighbor {ip-address | ipv6–address | peer-group-name} remote-as as-number
• Specify the IPv6 address family conguration.
CONFIG-ROUTER-BGP mode
address-family ipv6 [unicast | vrf vrf-name]
unicast — Species the IPv6 unicast address family. The default address-family is IPv6 unicast.
vrf vrf-name — Species the name of VRF instance associated with the IPv6 address-family conguration.
• Enable the neighbor to exchange prexes for IPv6 unicast address family.
CONFIG-ROUTER-BGP-AF (Address Family) mode
neighbor {ip-address | ipv6–address | peer-group-name} activate
Example of conguring BGP Peers
DellEMC(conf)# router bgp 10
DellEMC(conf-router_bgp)# neighbor 2001::1 remote-as 200
DellEMC(conf-router_bgp)# neighbor 2001::1 no shutdown
DellEMC(conf-router_bgp)# address-family ipv6 unicast
DellEMC(conf-router_bgpv6_af)#neighbor 2001::1 activate
DellEMC(conf-router_bgpv6_af)#exit
Following is the output of show ip bgp ipv6 unicast summary command for the above conguration example.
DellEMC#show ip bgp ipv6 unicast summary
BGP router identifier 1.1.1.1, local AS number 10
BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0
1 neighbor(s) using 8192 bytes of memory
Neighbor AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/Pfx
2001::1 200 0 0 0 0 0 00:00:00 0
DellEMC#
242
Border Gateway Protocol (BGP)