The Cisco IOS XE router must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT).
If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analysis. Time stamps generated by the application include date and time. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC.
Configure the timezone for the local time, then map the time stamps back to UCT or GMT. The configuration should look similar to the example below: clock timezone MST -7 0 service timestamps datetime localtime
Verify that the Cisco IOS XE router time stamps for audit logs can be mapped to UTC or GMT by using the show logging command. The configuration should look similar to the following example: clock timezone MST -7 0 service timestamps datetime localtime If the time stamps cannot be map to UTC or GMT, this is a finding.