Users Manual

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information to LAN hosts.
To define an extended DHCP option, click the Add button, choose the option to define and
enter its value. For values that are in IP address list format, you can enter one IP address
per line in the provided text area input control. Each option can be defined once only.
DHCP
Reservation
This setting reserves the assignment of fixed IP addresses for a list of computers on the
LAN. The computers to be assigned fixed IP addresses on the LAN are identified by their
MAC addresses. The fixed IP address assignment is displayed as a cross-reference list
between the computers’ names, MAC addresses, and fixed IP addresses.
Name (an optional field) allows you to specify a name to represent the device. MAC
addresses should be in the format of 00:AA:BB:CC:DD:EE. Press to create a new
record. Press to remove a record. Reserved client information can be imported from
the Client List, located at Status>Client List. For more details, please refer to Section
22.3.
DHCP Relay Settings
DHCP Relay
Enter the address of the DHCP server here. DHCP requests will be relayed to it.
DHCP Server
IP Address
DHCP requests from the LAN are relayed to the entered DHCP server.
For active-passive DHCP server configurations, enter active and passive DHCP server IPs
into the DHCP Server 1 and DHCP Server 2 fields.
DHCP Option
82
This feature includes device information as relay agent for the attached client when forwarding
DHCP requests from a DHCP client to a DHCP server. Device MAC address and network
name are embedded to circuit ID and Remote ID in option 82.
DHCP Relay
Logging
Check this box to log DHCP relay activity.