Now the fun begins; we are now moving into the realm of routing protocols, so no longer will we have to manually input the static route for each network; we have a beefy router and we have the bandwidth, so it is time to automate the routing process.
There are many variables that you need to consider when you are deciding to use a routing protocol; first, there are two types of routing protocols: Interior Gateway Protocols (IGPs); these protocols are RIP, EIGRP, and OSPF; they exchange information within an autonomous system or AS. There are also EGP or Exterior Gateway Routing Protocols, which are used to exchange information between different autonomous systems.
Other things you need to keep in mind are the size of the network. Each routing protocol has its limitations regarding how many routers it can handle, how scalable it is, whether we can grow our network...