Interlogix NS3502-8P-2S User Manual - Manual (Page 63)

IFS NS3502-8P-2S User Manual
63
The Circuit ID sub-option is supposed to include information specific to which circuit the request came
in on.
The Remote ID sub-option was designed to carry information relating to the remote host end of the
circuit.
The definition of Circuit ID in the switch is 4 bytes in length and the format is "vlan_id" "module_id"
"port_no". The parameter of "vlan_id" is the first two bytes represent the VLAN ID. The parameter of
"module_id" is the third byte for the module ID (in standalone switch it always equal 0, in stackable
switch it means switch ID). The parameter of "port_no" is the fourth byte and it means the port
number.
The Remote ID is 6 bytes in length, and the value is equal the DHCP relay agent’s MAC address. The
DHCP Relay Configuration screen in
Figure 4-2-11 appears.
Figure 4-2-11: DHCP Relay Configuration page screenshot
The 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 enable DHCP
relay mode operation, the agent forward and to transfer 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 for security considered.
Disabled: Disable DHCP relay mode operation.
• Relay Server Indicates the DHCP relay server IP address. A DHCP relay agent is
used to forward and to 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
enable DHCP relay information mode operation, the agent insert