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Chapter 4: Web configuration
This page includes the following fields:
Object
Mode
Advertising
Duration
IP Address Mode
Static VLAN
Interface ID
Buttons
•
Click
Apply
to apply changes.
•
Click
Reset
to undo any changes made locally and revert to previously saved
values.
DHCP relay
DHCP Relay is used to forward and to transfer DHCP messages between the clients
and the server when they are not on the same subnet domain.
The DHCP option 82 enables a DHCP relay agent to insert specific information into a
DHCP request packets when forwarding client DHCP packets to a DHCP server and
52
Description
Indicates the UPnP operation mode. Possible modes are:
Enabled: Enable UPnP mode operation.
Disabled: Disable UPnP mode operation.
When the mode is enabled, two ACEs are added automatically to trap UPnP
related packets to the CPU. The ACEs are automatically removed when the
mode is disabled.
The duration, carried in SSDP packets, is used to inform a control point or
control points how often it or they should receive a SSDP advertisement
message from this switch. If a control point does not receive any message
within the duration, it will think that the switch no longer exists. Due to the
unreliable nature of UDP, in the standard it is recommended that such
refreshing of advertisements to be done at less than one-half of the advertising
duration. In the implementation, the switch sends SSDP messages periodically
at the interval one-half of the advertising duration minus 30 seconds. Valid
values are in the range 100 to 86400.
IP addressing mode provides two ways to determine IP address assignment:
Dynamic: Default selection for UPnP. UPnP module helps users choosing the
IP address of the switch device. It finds the first available system IP address.
Static: The user specifies the IP interface VLAN for choosing the IP address of
the switch device.
The index of the specific IP VLAN interface. It will only be applied when IP
Addressing Mode is static. Valid configurable values ranges from 1 to 4095.
Default value is 1.
NS4702-24P-4X-V2 Managed Switch User Manual
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