6.2 Static Routing Flashcards
When the network topology changes Describe what happens to dynamic and static routing
dynamic entries are updated automatically
static entries must be manually adjusted
When is static better than dynamic routing
when you have a simple network, dynamic is better for larger or complex networks
What are the three advantages of static routing
Static routes are more secure because they are not shared over the network like dynamic routes.
Static routes require less bandwidth and system resources than dynamic protocols.
The path used to send data across a network is set and does not need to be determined before packets are sent.
What are three disadvantages of static routing
Initial and ongoing configuration requires a lot of time.
Errors can be made in manual configurations.
Routes must be changed manually when there are topology changes.
Describe when to use Standard static route
when connecting to a remote network. If data is frequently exchanged between networks, there’s no need to use a dynamic routing protocol. Instead, an administrator can configure a direct route between the two networks, saving resources each time data is exchanged.
Describe when to use a Default static route
If there is only one router on your network, you can set up a default static route to direct to the ISP, packets with IP addresses not in the routing table.
Similarly, in a larger network, a default route can be used when the IP address does not match an entry in the routing table. In the event that packets are destined to a destination outside of an organization, the packets are sent through an edge router to the company’s internet service provider.
Describe when to use Summary static route
used to minimize the number of routing table entries. Multiple static routes can be combined into one static route if the networks are touching or use the same next-hop address.
Describe when to use Floating static route
backup routes. If one link fails, the floating route is to be used. This is accomplished by setting a higher administrative distance to the backup route. By default, the administrative distance of a static route is 1, but the distance can be increased to ensure that it serves as a backup route.
What does the command
Router(config)#ip route network-address subnet-mask { ip-address | exit-intf [ip-address]} [distance]
do
Configures a static route on an IPv4 network. Note that the administrative distance defaults to 1 if not specified.
What does the command
Router(config)#ip route network-address subnet-mask { ip-address | exit-intf [ip-address]} [distance]
do
Configures a static route on an IPv6 network. Note that the administrative distance defaults to 1 if not specified.
What does the command
Router(config)#ip route 0.0.0.0 0.0.0.0 {ip-address | exit-intf}
do
Configures a default static route on an IPv4 network.
What does the command
Router(config)#ipv6 route ::/0 {ipv6-address | exit-intf}
do
Configures a default static route on an IPv6 network.
What does the command
Router#show ip route static
do
Shows the static routes listed in the routing table.
Router(config)#ip route network-address subnet-mask { ip-address | exit-intf [ip-address]} [distance]
Configures a floating static route on an IPv4 network. You must increase the administrative distance of the floating route to ensure that it is higher than your default static route and that it is used only as a backup.
Router(config)#ip route network-address subnet-mask { ip-address | exit-intf [ip-address]} [distance]
Configures a floating static route on an IPv6 network. Note that the administrative distance defaults to 1 if not specified. You must increase the administrative distance of the floating route to ensure that it is higher than the default static route and that it is used only as a backup.
