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NTP authentication

jefforsi
Level 1
Level 1

‎12-18-2003 08:02 AM - edited ‎03-02-2019 12:26 PM

Hi,

what's is the function NTP authentication?

For example, I have a router configured as NTP MASTER, so I want that only routers that have the same authentication key can GET time from this server... but in my tests any device can GET time from my NTP MASTER...

If the authentication is used to prevent that invalid time sources can update the time of my device... I will need to configure authentication in my NTP clients?

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a-vazquez
Level 6
Level 6

‎12-24-2003 08:22 AM

Configuring NTP authentication is sometimes tricky. I am sure the following documents will help you understand NTP authentication better.

http://www.cisco.com/en/US/tech/tk869/tk769/technologies_white_paper09186a0080117070.shtml

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_c/fcfprt3/fcf012.htm#77727

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