PLANET WGSD-10020 - Manual (Page 59)

User’s Manual of WGSD-10020 Series
59
Buttons
: Click to save changes.
: Click to undo any changes made locally and revert to previously saved values.
Figure 4-2-10 UPnP
devices shows on Windows My Network Places
4.2.8 DHCP Relay
Configure DHCP Relay on this page.
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 remove the specific information from a DHCP reply packets when forwarding server
DHCP packets to a DHCP client. The DHCP server can use this information to implement IP address or other assignment
policies. Specifically the option works by setting two sub-options:
 Circuit ID (option 1)
 Remote ID (option2).
The Circuit ID sub-option is supposed to include information specific to which circuit the request came in on.