..::You can change the world with the knowledge::..

An administrator must use the ip route command to manually configure the router with static routing.

n figure 2.2 and 2.3 above, the network administrator must configure the router Hoboken static routing to the network 172.16.1.0/24 and 172.16.5.0/24. Therefore the administrator to enter two commands to the router. Administrative distance is an additional parameter that indicates the reliability of the route. The smaller the administrative distance value of the more reliable route. because route with a smaller administrative distance should be given first before the larger administrative distance is given. The default administrative distance when using static routing is 1. when the external interface is configured as a gateway, static routing will be shown in the routing table as the information "directly connected". To view the administrative distance is used the command show ip route. The value of the administrative distance is between 0 and 255 given after the next-hop or outgoing interface.

Routing protocol is different from the routed protocol. Routing protocol is the communication between the routers. Routing protocols allow routers to share information about networks and connections between routers. The router uses this information to build and repair its routing table. As in the picture below.

- Routing Information Protocol (RIP)

- Interior Gateway Routing Protocol (IGRP)

- Enhanced Interior Gateway Routing Protocol (EIGRP)

- Open Shortest Path First (OSPF)

Routed protocols are used to direct user traffic. Routed protocol provides enough information in its network layer address to pass the packet to be forwarded from one host to another host based on address.

The AS is a collection of networks in a single administration that has routing strategy together. The AS may be executed by one or more carriers when the AS used in routing to the outside world.

American Registry of Internet Numbers (ARIN) is a service provider or an administrator who provides identification numbers to the U.S. for 16-bit. Routing protocols such as Cisco's IGRP requires AS numbers (AS number) that are unique.

The main goal of routing protocols is to build and improve the routing table. Where this table contains the networks and interfaces associated with the network. Routers use routing protocols to manage information received from other routers and interfaces, respectively, as happened in the routing configuration manually.

Routing protocols learn all the existing router, put the best route to the routing table, and also remove the route when the route is not valid anymore. The router uses the information in the routing table to pass the packets routed prokol.

Routing algorithm is the basis of dynamic routing. Whenever the network topology changes due to development of the network, reconfiguring or there is a problem in the network, the router will know the changes. Basic knowledge is required accurately to see the new topology.

At all routers in the network have the same knowledge of all means can be said internetwork in a state of convergence (converged). A fast converging circumstances is desirable because it can suppress the time when the router continue to take a routing decision that is not true.

The AS share of global internetwork into small pieces into many tissues can be arranged. Each AS has a setting and its own rules and a AS number that will distinguish it from other AS.