To check the details of interfaces in a Cisco router, which command is used?

The command "show interfaces" is essential for obtaining detailed information about all interfaces on a Cisco router. When executed, this command provides a comprehensive output that includes the status of each interface (whether it is up or down), the hardware type, the IP address assigned, and statistics such as the number of packets received and transmitted. This information is crucial for network diagnosis and troubleshooting, allowing network administrators to monitor interface performance and connectivity.

While the "show ip interfaces" command specifically focuses on the IP-related details of interfaces, giving insight into address configurations and any associated access control lists (ACLs), it doesn’t provide the complete range of data that "show interfaces" does. The "show running-config" command displays the current configuration of the router, which includes interface settings but not real-time operational statistics, and the "show version details" command provides information about the hardware and software version but is not related to interface status or statistics. Therefore, for comprehensive and detailed interface information, "show interfaces" is the correct command to use.