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switch supports DNS client function to re-route the mnemonic name address to DNS server to get its
associated IP address for accessing Internet. User can specify a DNS IP address for the switch. With
this, the switch can translate a mnemonic name address into an IP address. There are two ways to
specify the IP address of DNS. One is fixed mode, which manually specifies its IP address, the other is
dynamic mode, which is assigned by DHCP server while DHCP is enabled. DNS can help you easily
remember the mnemonic address name with the meaningful words in it. Default is no assignment of
DNS address. Default: 0.0.0.0
3.3.3 Time Configuration
The switch provides manual and automatic ways to set the system time via NTP. Manual setting is simple and
you just input “Year”, “Month”, “Day”, “Hour”, “Minute” and “Second” within the valid value range indicated in
each item. If you input an invalid value, for example, 61 in minute, the switch will clamp the figure to 59.
NTP is a well-known protocol used to synchronize the clock of the switch system time over a network. NTP, an
internet draft standard formalized in RFC 1305, has been adopted on the system is version 3 protocol. The
switch provides four built-in NTP server IP addresses resided in the Internet and an user-defined NTP server
IP address. The time zone is Greenwich-centered which uses the expression form of GMT+/- xx hours.
Parameter description:
y
Current Time
: Show the current time of the system.
y
Manual
:
This is the function to adjust the time manually. Filling the valid figures in the fields of Year, Month, Day,
Hour, Minute and Second respectively and press <Apply> button, time is adjusted. The valid figures for
the parameter Year, Month, Day, Hour, Minute and Second are >=2000, 1-12, 1-31, 0-23, 0-59 and
0-59 respectively. Input the wrong figure and press <Apply> button, the device will reject the time
adjustment request. There is no time zone setting in Manual mode.
y
NTP
:
NTP is Network Time Protocol and is used to sync the network time based Greenwich Mean Time
(GMT). If use the NTP mode and select a built-in NTP time server or manually specify an user-defined
