Configuring Static Routes | Cisco CCNA Exam 200-125

Understanding the 'ip route' Command

Q: Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.)

It establishes a static route to the 172.16.3.0 network.It uses the default administrative distance.

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Question

Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.)

Answers

A. It establishes a static route to the 172.16.3.0 network.

B. It establishes a static route to the 192.168.2.0 network.

C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.

D. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4.

E. It uses the default administrative distance.

F. It is a route that would be used last if other routes to the same destination exist.

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Explanations

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A. B. C. D. E. F.

The command "ip route 172.16.3.0 255.255.255.0 192.168.2.4" means that "if there is a packet to the network 172.16.3.0/24 then route it to 192.168.2.4 first.

The syntax of static route is:

ip route <subnet-mask> <next-hop-IP-address | exit-interface> [metric]

+ destination-network-address: destination network address of the remote network

+ subnet mask: subnet mask of the destination network

+ next-hop-IP-address: the IP address of the receiving interface on the next-hop router

+ exit-interface: the local interface of this router where the packets will go out

+ metric: the distance metric for this route. If not specified, it uses the default administrative distance of 1

The command "ip route 172.16.3.0 255.255.255.0 192.168.2.4" is used to configure a static route on a Cisco router. This command has the following syntax:

php
ip route <destination network> <subnet mask> <next-hop address or exit interface>

The destination network in this case is 172.16.3.0 with a subnet mask of 255.255.255.0. This means that any traffic destined for the 172.16.3.0 network with a subnet mask of 255.255.255.0 will be routed according to this static route.

The next-hop address or exit interface in this case is 192.168.2.4. This means that any traffic matching the destination network and subnet mask will be forwarded to the next-hop address of 192.168.2.4 or out the interface with the IP address of 192.168.2.4.

Based on this information, the following statements are true:

A. It establishes a static route to the 172.16.3.0 network. True. The command configures a static route to the destination network of 172.16.3.0 with a subnet mask of 255.255.255.0.

B. It establishes a static route to the 192.168.2.0 network. False. The command does not configure a static route to the 192.168.2.0 network. Instead, it specifies the next-hop address or exit interface for traffic destined for the 172.16.3.0 network.

C. It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. False. This command only configures a static route for traffic destined for the 172.16.3.0 network with a subnet mask of 255.255.255.0. It does not specify what to do with traffic for unknown destinations.

D. It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. False. This command only specifies the next-hop address or exit interface for traffic destined for the 172.16.3.0 network with a subnet mask of 255.255.255.0. It does not specify what to do with traffic for unknown destinations.

E. It uses the default administrative distance. True. By default, a static route has an administrative distance of 1, which is the same as directly connected routes.

F. It is a route that would be used last if other routes to the same destination exist. False. This statement is not true since it doesn't mention any other routes to the same destination.

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