NETGEAR AV Line M4250 GSM4210PX 8-Port Gigabit PoE+ Compliant Managed AV Switch with SFP (220W) - Manual (Page 67)

5. Select System > Management > Time > Time Configuration.
The Time Configuration page displays.
6. Select the Clock Source SNTP radio button.
The default is SNTP.
In the SNTP Global Configuration section of the page, configure the following settings.
7. Select a Client mode radio button to specify the operation mode of the SNTP client:
on the switch:
• Disable: SNTP is not operational. No SNTP requests are sent from the client and
no received SNTP messages are processed.
• Unicast: SNTP operates in a point-to-point mode. A unicast client sends a request
to a designated server at its unicast address and expects a reply from which it can
determine the time and, optionally, the round-trip delay and local clock offset
relative to the server.
The default selection is Unicast. You can add the IP address or DNS name of one
or more SNTP servers for the switch to poll. For more information, see Configure
SNTP servers on page 71.
• Broadcast: SNTP operates uses a local broadcast address instead of a multicast
address. The broadcast address has a single subnet scope while a multicast
address has an Internet wide scope.
8. In the Port field, specify the local UDP port on which the SNTP client receives server
packets.
The port number is 123 or in a range from 1025 to 65535. The default is 123. When
the default value is configured, the actual client port value used in SNTP packets is
assigned by the operating system.
9. From the Source Interface menu, select the interface that the SNTP client must use:
• None: The primary IP address of the originating (outbound) interface is used as
the source address.
• Routing interface: The primary IP address of a physical port is used as the source
address.
• Routing VLAN: The primary IP address of a VLAN routing interface is used as the
source address.
• Routing loopback interface: The primary IP address of a routing loopback
interface is used as the source address.
• Tunnel interface: The IPv6 tunnel interface.
• Service port: The management port source IP address is used as the source
address.
By default VLAN 1 is used as the source interface.
Main User Manual 67 Configure Switch System
Information
AV Line of Fully Managed Switches M4250 Series Main User Manual