4.2.2 NTP
NTP, the Network Time Protocol is used to sync the network time based on Greenwich Mean Time (GMT). You can use
the built-in NTP time server or manually specify a user-defined NTP server as well as a Time Zone, the switch will sync
the time shortly after pressing the <Apply> button. Though it synchronizes the time automatically, NTP does not update
the time periodically without user’s processing.
The Time Zone is an offset time off GMT. You have to select the time zone first and then perform time sync via NTP
because the switch will combine the time zone offset and updated NTP time to provide the local time, otherwise, you
will not able to get the correct time. The switch supports configurable time zone from –12 to +13 hours in steps of 1
hour.
Default Time zone: +8 Hrs.
Web Interface
To configure NTP in the web interface:
1. Click SYSTEM, NTP.
2. Specify the NTP parameters.
3. Click Apply.
Figure 4-2.2: The NTP configuration
Parameter description:
Server 1 to 5:
The NTP’s IPv4 or IPv6 address. The IPv6 address in 128-bit records is represented as eight fields of up to four hexadecimal
digits with a colon separating each field (:). For example, 'fe80::215:c5ff:fe03:4dc7'. The symbol '::' is a special syntax
that can be used as a shorthand way of representing multiple 16-bit groups of contiguous zeros; but it can only appear
once. It can also represent a legally valid IPv4 address. For example, '::192.1.2.34'.
Buttons
Save – Click to save changes.
Reset - Click to undo any changes made locally and revert to previously saved values.
4.3 Account
Only administrators can create, modify or delete usernames and passwords. Administrators can modify other guest
identities’ password without confirming the password except it is necessary to modify an administrator-equivalent
identity. Guest-equivalent identities can modify their passwords only. Please note that you must select administrator/guest
identity in the field of Authorization in advance before configuring the username and password. The number of
administrator and guest accounts that you can create is not limited.
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4 System Configuration
