200-301 Question 293
Single answerA network administrator has configured a router with the following command: ip route 0.0.0.0 0.0.0.0 192.168.1.1. What is the purpose of this configuration?
- A
To establish a static route to the 192.168.1.0/24 network
- B
To configure the router to drop all packets destined for unknown networks
- C
To set up the Gateway of Last Resort for forwarding traffic to unknown networks
- D
To enable dynamic routing on the router for the 192.168.1.1 network
Show answer and explanation
Correct answer: C
Explanation
The command ip route 0.0.0.0 0.0.0.0 192.168.1.1 is used to configure a default static route. This route is known as the Gateway of Last Resort and is used to forward packets to the specified next-hop IP address (192.168.1.1) if no more specific route exists in the routing table. This ensures that traffic destined for unknown or external networks has a path to follow.
- A. Incorrect.
This option is incorrect because the command does not specify a destination network of 192.168.1.0/24. It is instead a default route.
- B. Incorrect.
This option is incorrect because the command does not instruct the router to drop packets. It directs packets to a specific next-hop address (192.168.1.1).
- C. Correct.
This option is correct because the command
ip route 0.0.0.0 0.0.0.0 192.168.1.1creates a default route, which is used as the Gateway of Last Resort for forwarding traffic to an unknown destination network. - D. Incorrect.
This option is incorrect because the command does not enable dynamic routing. Instead, it configures a static default route to the next-hop IP address.