Man, time is hard to come by of late.  I’ve had so little time to rest that’s it’s hard to get my thoughts together.  It’s a good thing in this case, though, since it’s my fantastic job that’s taking all my time.  It’s great to see new network and learn their internals…especially when they were designed by some long-time CCIEs who actually knew what they were doing.

One of the big things that I’m dealing with lately is VRFs.  I’ve implemented some VRF-lite stuff, but I’ve never had any practical experience with the full force of them.  I’m definitely learning here.  Since the blog here is really about my sharing what I’ve learned, let’s go through something that came up recently - terminating VPNs on one VRF while passing traffic to another.

Are you sensing a theme lately?  Since we covered the basics of the main IGPs (I’m an enterprise guy, so no IS-IS comments, please.), I thought I’d try to describe the basics of advertising IPv6 routes over BGP.  Yet again, we’re not going to do any route manipulation or change any of the 948284928 BGP attributes.  We’re just trying to get routes exchanged.

Configuration

There’s no new version of BGP for IPv6 here.  It’s the standard BGP version 4 that we’ve all been using for years, but we’re going to take advantage of the multiprotocol support (MPBGP, RFC 2858 RFC 4760).  We’ll get to the differences in a second, but the first thing to do is to set up the BGP process as normal.