Cisco Certified Network Associate
Exam Code No: 640 – 802
Managing Traffic with Access-list
NAT and PAT
PAP and CHAP
What is Routing ?
o The term “routing” is used for taking a packet from one device and sending it
through the network to another device on a different network.
o Routers don’t really care about hosts—they only care about networks and the best
path to each network.
Routers route traffic to all the networks in your internetwork. To be able to route packets,
a router must know, at a minimum, the following:
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
Routing Example :
• Routing is taking place from Host_A to Host_B through the Lab_A Router.
• To be able to route, the router must know how to get into the network
1. Static Routing
2. Default Routing
3. Dynamic Routing
1. Static Routing.
Static routing occurs when you manually add routes in each router’s routing table.
By default, Static routes have an Administrative Distance (AD) of 1
There is no overhead on the router CPU
There is no bandwidth usage between routers
It adds security, because the administrator can choose to allow routing access to
certain networks only.
Configuration Static Routing
Router(config)#ip route Destination_network Mask Next-Hop_Address (or)
Router(config)#ip route Destination_network Mask Exit interface
ip route : The command used to create the static route.
destination_network : The network you’re placing in the routing table.
mask : The subnet mask being used on the network.
next-hop_address : The address of the next-hop router
Exitinterface : You can use it in