ZyXEL Communications P-2302R-P1 - Manual (Page 55)

P2302R-P1 Support Notes
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
2007 ZyXEL Communications Corporation.
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 Time Service in ZyXEL Device
There is no RTC (Real-Time Clock) chip so the ZyXEL Device should launch a mechanism to get current time
and date from external server in boot time. Time service is implemented by the Daytime protocol(RFC-867),
Time protocol(RFC-868), and NTP protocol(RFC-1305). You have to assign an IP address of a time server and
then, the ZyXEL Device will get the date, time, and time-zone information from this server.