Chapter 4: Web management
46
NS3550-8T-2S Industrial Managed Switch User Manual
This page includes the following fields:
Object
Description
Relay Mode
Indicates the DHCP relay mode operation. Possible modes are:
Enabled
: Enable DHCP relay mode operation. When enabling DHCP relay
mode operation, the agent forwards and transfers DHCP messages between
the clients and the server when they are not on the same subnet domain and
the DHCP broadcast message won't flood due to security settings.
Disabled
: Disable DHCP relay mode operation.
Relay Server
Indicates the DHCP relay server IP address. A DHCP relay agent is used to
forward and transfer DHCP messages between the clients and the server
when they are not on the same subnet domain.
Relay Information
Mode
Indicates the DHCP relay information mode option operation. Possible modes
are:
Enabled
: Enable DHCP relay information mode operation. When enabling
DHCP relay information mode operation, the agent inserts specific information
(option82) into a DHCP message when forwarding to DHCP server and
removes it from a DHCP message when transferring to DHCP client. It only
works when DHCP relay operation mode is enabled.
Disabled
: Disable DHCP relay information mode operation.
Relay Information
Policy
Indicates the DHCP relay information option policy. When enabling DHCP
relay information mode operation, if the agent receives a DHCP message that
already contains relay agent information, it will enforce the policy. This only
works when DHCP relay information operation mode is enabled. Options are:
Replace
: Replace the original relay information when receiving a DHCP
message that already contains it.
Keep
: Keep the original relay information when receiving a DHCP message
that already contains it.
Drop
: Drop the package when receiving a DHCP message that already
contains relay information.
Buttons
• Click
Save
to save changes.
• Click
Reset
to undo any changes made locally and revert to previously saved
values.