A study of WAN design, routing protocols and connectivity between Head office to Branch office

ABSTRACT An organization has ‘N’ numbers of remote offices (Branch offices). The organization plans to connect all branch offices to head office through Wide Area Network (Internet). Our goal is to explain how to connect both ends (Head office and Branch Office). We discuss how Internet Service Providers (ISPs) exchange routing information, packets, between each others. We will design the WAN environment and demonstrate the configuration of routers and other routing protocols i.e. Static Routing, Dynamic routing (RIP, OSPF, EIGRP) with the help of Packet tracer (Simulator). This paper will help to understand how do WAN Works.