From the course: Cisco CCNP Enterprise: ENCOR v1.2 (350-401) Cert Prep

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Routing IPv6 with BGP over an IPv4 session, part 2

Routing IPv6 with BGP over an IPv4 session, part 2

From the course: Cisco CCNP Enterprise: ENCOR v1.2 (350-401) Cert Prep

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Routing IPv6 with BGP over an IPv4 session, part 2

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In our previous video we configured multi-protocol BGP. In other words, we could use BGP to advertise both IPv4 and IPv6 networks. And in the previous video we advertised both type of networks over an IPv4 session. Remember there's a TCP session that gets set up between our BGP neighbors? Well we just had one session. It was an IPv4 session where we pointed to our neighbor's IPv4 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 IPv6 network to my neighbor, it would not know how to get back to me. It did not know my IPv6 address. It didn't know the next hop, in other words. To fix that, we created a route map. And the the route map said, I am the next top. And we stuck on that next top 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 configure it. And that's what we're going to do in…

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