Our CCNP Enterprise Practice Topology

This is the first post in a short series, where we will take a basic network topology, and go through most of the configuration topics related to the CCNP Enterprise (350-401) ENCOR exam. The configuration we need to do is basic, and we will touch on things like SLA Tracking, FHRPs, Static Routing, OSPF multi-area routing, a little bit of BGP, NAT, and VPNs.

Parts of Our Topology

The HQ Location

Our HQ location will have two internal networks using dot1q sub-interfaces. Two border routers; we will use 192.168.0.0/16 addresses for internal address space, and will use 10.0.0.0/8 address space to connect to our ISPs.

We will set up basic interfaces, NAT, static routing to the ISP, IP SLA tracking for determining if the ISP is up or not, and FHRPs for Layer 3 gateway redundancy. The tracking will also be used to decrement our FHRP for switching between the border routers.

Once the ISP side is set up, we will come back and set up BGP.

The ISP Infrastructure

ISP Infrastructure will be built on 3 routers, and will be initially set up with 4 OSPF areas. Loopback interfaces will be made available for HQ Site IP SLA tracking.

After we get the underlying OSPF set up done, we will build out a simple BGP configuration. This will allow us to demonstrate modifying routing policy.

The Remote Site

The remote site will be very simple, with a single router and single subnet. After it is set up, we will configure crypto map and routed VPNs to the HQs.

What comes next?

The topology diagram will be updated to reflect changes, as they are made. Each section will get its own post. Depending on how long each post gets, there could be multiple for some areas.