NTP related errors in reporter diagnostic logs

Products

• Reporter-S500
• Reporter-VA
• Reporter

Issue/Introduction

The following NTP error seen in the reporter diagnostic logs
/var/log/messages

 Invalid-NAK error at xxxxx <reporter-ip><-<ntp-server-ip>
 

Cause

This is seen when you configure secure NTP on the reporter and if there is a symmetric key mismatch

# show running-config ntp
ntp
enable
symmetric-key 1 algorithm sha1
symmetric-key 1 encrypted-secret xxxxx
server <server-ip> symmetric-key 1

Resolution

Ensure that the symmetric key is the same on NTP server and reporter