The Internet Laboratory provides hands-on experience to graduate students in the area of internetworking and helps improve their understanding of Internet fundamentals. They use routers, switches, PCs, and straight-through, crossover and DTE/DLE connectors to create various topologies. They use the equipments' command-line interface to configure networking equipment and learn to set up and study static routing, Routing Information Protocol (RIP), Open Shortest path First (OSPF), OSPF virtual links, and Border Gateway Protocol (BGP). They also learn to set up Linux computers as routers to implement dynamic routing in the network. They also learn security in Cisco router’s console access and telnet access. All these experiments allow students to help understand how the routing protocols exchange network information and Cisco routers and switches are configured. We plan to include (i) HSRP (hot standby routing protocol) for fault tolerant IP routing and load sharing and (ii) Cisco router's access-list command, which is a powerful tool for controlling the behavior of packets and frames. It also helps understand how to increase network security by using access list.