Details

Define an authentication key for Network Time Protocol (NTP).

Solution

Configure at the NTP key ring and encryption key using the following command
hostname(config)#ntp authentication-key {ntp_key_id} md5 {ntp_key}

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/508

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Cisco.

References

• 800-53|CM-6b.

Source

• Tenable.com/audits