Routing IPv6 with BGP over an IPv6

In our previous video, we configured multi-protocol BGP. In other words we could use BGP to advertise both IP version 4 and IP version 6 networks. And in the previous video, we advertised both type of networks over an IP version 4 session. Remember there's a TCP session that gets set up between our BGP neighbors. Well, we just had one session. It was an IP version 4 session where we pointed to our neighbors IP version 4 address and over that session, we advertised both IPv4 and IPv6 networks. The challenge we had, though, in the previous video was that when I advertised an IP version 6 network to my neighbor, it would not know how to get back to me. It did not know my IP version 6 address. It didn't know the next hop, in other words. To fix that, we created a route map and the route map said, I am the next hop. And we stuck on that next-hop attribute on all of the IPv6 route advertisements we were sending to our neighbor. And that was sort of a workaround, but there's another way to…