3.1.b ii MP-BGP VPNv4/VPNv6

Since I covered VPNv4 pretty thoroughly in the previous post (3.1.b i), I’m going to stick to just VPNv6 here. You basically have two options: tunnel your IPv6 traffic from your CE routers using something like GRE, or use IPv6 + Label on the PE routers. For this labbing exercise, I’m going to focus onContinue reading “3.1.b ii MP-BGP VPNv4/VPNv6”

3.1.b iii Extranet (route leaking)

The focus here is setting the two customers up to be able to talk to each other. At the most basic level, we can use the Route Targets. For simplicity’s sake, I’m going to add a second loopback prefix that’s unique for each customer. Otherwise we’d need to do Twice NAT, which NATs out theContinue reading “3.1.b iii Extranet (route leaking)”

3.1.b i PE-CE routing

Whatever routing protocol is running between the PE and CE will need to be redistributed into BGP, since BGP is the only protocol that supports the VPNv4 routing table. The BGP routes will also need to be redistributed into the PE/CE routing protocol. From the PE perspective, we’ll need the VRFs set up on theContinue reading “3.1.b i PE-CE routing”

3.1 MPLS: 3.1.a Operations

There’s a delicate balance in labbing and studying. During your time spent labbing topic X, your knowledge of topics Y and Z are slowly draining out. When I was studying for the CCIE Security exam, I feel like I spent too much time (about a month straight) working on FLEXVPN. By the time I feltContinue reading “3.1 MPLS: 3.1.a Operations”