8 dhcp relay – PLANET XGSW-28040 User Manual

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User’s Manual of XGSW-28040

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.

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