Nexus 6k NTP Troubleshooting

[udo.konstantin]

Hello, 

on a given network there are two Nexus 6001 with Version 7.3.8.N1.1which are the NTP Servers for other network devices. Also NTP authentication is active. 
While working on the config I notice the following:

show ntp statistics local
....snip....
packets processed: 20912
bad authentication: 315153
...snip....

I want to find out which systems are not authenticating correctly. I tried with ethanalyzer on Nexus with a detail output. But I didn't found on the log file anything which leads to the bad authentication. 
Any help? 

Udo 

[anpetit]

Hello @udo.konstantin , 
Checking your post, I don't know if you checked the following:

show ntp peer-status
show ntp authentication-status

Bad authentication could come from ACL as well as wrong authentication key configuration. 

Let me know if it helps. 

Kind Regards,
Antoine