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User Manual
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condition, please make sure the switch configuration of VLAN interface IP address and
PVID (Port VLAN ID) correctly.
Relay Mode
Indicates the DHCP relay mode operation.
Possible modes are:
Enabled: Enable DHCP relay mode operation. When DHCP relay mode operation
is enabled, the agent forwards and transfers DHCP messages between the clients
and the server when they are not in the same subnet domain. And the DHCP
broadcast message won't be flooded for security considerations.
Disabled: Disable DHCP relay mode operation.
Relay Server
Indicates the DHCP relay server IP address.
Relay Information Mode
Indicates the DHCP relay information mode option operation. The option 82 circuit ID
format as "[vlan_id][module_id][port_no]". The first four characters represent the VLAN
ID, the fifth and sixth characters are the module ID(in standalone device it always equal
0, in stackable device it means switch ID), and the last two characters are the port
number. For example, "00030108" means the DHCP message receive form VLAN ID
3, switch ID 1, port No 8. And the option 82 remote ID value is equal the switch MAC
address.
Possible modes are:
Enabled: Enable DHCP relay information mode operation. When DHCP relay
information mode operation is enabled, the agent inserts specific information
(option 82) into a DHCP message when forwarding to DHCP server and removes