1. Introduction to networking (Yarnfield)
Static routes

2. Objectives Describe what a static route is
Define what administrative distance refers to
Describe how to configure a static route

3. Static routes
Static routes are commonly used when routing from a network to a stub network
A stub network is a network that can only be accessed by one route
Routing protocols used in stub networks can be a waste of resources
Therefore static routes are configured for connectivity to remote networks that are not directly connected to a router

4. Static route operation
Next hop address
Next hop IP
address

5. Administrative distance
A measure of reliability
When there are two or more protocols showing two or more routes to a destination, the router uses the admin distance to determine which protocol to use
Lower values are more reliable
Static routes have a default admin distance of 1
However, a true directly connected route has an admin distance of 0!
To verify the administrative distance use
show ip route address

6. Configuring static routes
Hoboken must be configured so that it can reach the network and the
network. Both of these networks have a subnet mask of
Hoboken(config)#ip route s1
Hoboken(config)#ip route s0
Admin. Distance set to 0
as none in specified

7. Configuring static routes
Admin.
distance set
to 1

8. Configuring default route forwarding
Default routes are used to route packets with destinations that do not match any of the
other routes in the routing table

9. Verifying static route configuration

10. Verifying static route configuration

11. Troubleshooting static route configuration

12. Troubleshooting static route configuration

13. Summary Static and dynamic routing is often used together
Static routes are commonly used with stub networks i.e. networks with only one way to access them
Administrative distance is a measure of reliability

14. Questions...
...are there any?