We will be discussing Cisco CCNA IP routing protocol. This tend to be a very important section and topic to understand as it pertains to all routers and configurations that makes use of IP. IP routing is the process of moving, routing, directing or pointing packets or signals from one network to another network and also more important delivering the packets to hosts computers, or switches on a network.
This section we will discus simply the background on how to configure and verify IP routing with Cisco routers. In subsequent pots we will be covering the following types of routing in our network:
One important thing in networking especially when it comes to using cisco equipment is to be able to configure Cisco routers and then verify IP routing. All the information you will be needing is covered in this blog as we proceed will give you this information.
Why We Emphasis so much on Routing
Routing is primarily used for taking a packets from one device and sending it through the network to another device on a different network.
If your network consist of switches only and routers are not involved in the entire network, then you are not routing. Basically Routers route traffic to all the networks in your internetwork.
For you to be able to route packets, a router must know to some extent, at least these minimum information in the network.
Neighbor routers from which it can learn about remote networks.
Possible routes to all remote networks the best route to each remote network.
How to maintain and verify routing information
The router learns about remote networks from neighbor routers or from an administrator.
The router then builds a routing table that describes how
to find the remote networks. If the network is directly connected, then the
router already knows how to get to the network. If the networks are not
attached, the router must learn how to get to the remote network with either
static routing, which means that the administrator must hand-type all network
locations into the routing table, or use dynamic routing.
Briefly, This the process of routing protocols running on the router communicating
with neighbor routers. The routers then update each other about all the networks they know about.
If a change occurs in the network, the
dynamic routing protocols automatically inform all routers about the change.
If static routing is used, the administrator is responsible for updating all changes by hand into all routers.