Enables exchanging of IPv6 routes over IPv4 BGP peer sessions. This configuration applies only to BGP neighbors that are members of a peer-group.
None
BGP Configuration Mode
The no form of this command disables exchanging IPv6 addresses over IPv4 BGP peer sessions.
Note
When the IPv6 address family is already activated under a peer-group and the command peer-group ipv6prefix-over-ipv4peer is executed, the Neighbor NLRI Negotiation capabilities are modified from IPv4 unicast routes to IPv4 and IPv6 unicast routes. This will result in the existing BGP IPv4 connections - that are mapped to a peer-group and have IPv6 address family enabled - being reset.
This reset also happens when IPv6 address family is already activated under a peer-group, and CLI peer-group ipv6prefix-over-ipv4peer is being disabled.
The following example enables exchanging IPv6 addresses over IPv4 BGP peer sessions.
SLX (config)# router bgp SLX (config-router-bgp)# peer-group ipv6prefix-over-ipv4peer SLX (config-router-bgp)#