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Network Time Protocol (NTP) server IP address changes for Network Protection Products


Article ID: 170350


Updated On:


Content Analysis Software - CA Advanced Secure Gateway Software - ASG CacheFlow Appliance Software ProxySG Software - SGOS Management Center


Network Protection appliances use,, and as pre-configured NTP servers.

On May 28th, 2020, the NTP service was changed to use Google time servers.


The CNAME to,, is now pointing to


Service Name Old IP address New IP addresses

If you are using this NTP service you should verify that firewall is allowing traffic to IP addresses above, UDP port 123.