To enable connectivity to a remote network, a router requires a route in its routing table. This question requires configuring a static route on router R1 to reach the 172.25.25.0/24 network. The correct Cisco IOS command syntax is ip route .

In this scenario:

- The destination network is 172.25.25.0.

- The subnet mask is 255.255.255.0.

- The next-hop IP address, from R1's perspective, is the IP address of R2's directly connected interface, which is 192.168.2.2.

Therefore, the command ip route 172.25.25.0 255.255.255.0 192.168.2.2 correctly configures the static route on R1.

A. This command contains multiple syntax errors in the network address and mask. It also incorrectly uses R1's own IP address as the next-hop, which is invalid.

B. This command has syntax errors in the destination network address and uses a /32 mask (255.255.255.255), which is incorrect for routing to the /24 network.

D. This command is syntactically valid but logically incorrect because it specifies R1's own IP address (192.168.2.1) as the next hop. A router cannot route traffic to itself.

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1. Cisco Systems

Inc. (2023). IP Routing: BGP Command Reference. "ip route" command documentation. This official reference details the command syntax ip route prefix mask {ip-address | interface-type interface-number [ip-address]}

confirming the required parameters for a next-hop static route.

2. Odom

W. (2019). CCNA 200-301 Official Cert Guide

Volume 1. Cisco Press. Chapter 13

"Implementing Static IPv4 Routing

" Section "Configuring IPv4 Static Routes

" pp. 387-389. This section explicitly describes the configuration syntax and provides examples

stating that the command requires the destination prefix

mask

and either the next-hop IP address or an exit interface.

3. University of Washington

Department of Electrical & Computer Engineering. (n.d.). EE 450 Lab 3: Static Routing. This course material demonstrates the configuration of static routes using the ip route command format in a lab environment

reinforcing the correct syntax and application.