ZyXEL VES1724-56B2 User Guide - Page 315

Figure 198 IP Application > DHCP > Global > DHCP Relay Chapter 35 DHCP The following table describes the labels in this screen. Table 148 IP Application > DHCP > Global > DHCP Relay LABEL DESCRIPTION Active Select this check box to enable DHCP relay. Remote DHCP Server 1 .. 3 Relay Agent Information Note: You cannot enable this function globally if you have configured a rule for a specific VLAN on the port in the IP Application > DHCP > VLAN screen. Enter the IP address of a DHCP server in dotted decimal notation. Select Option 82 to have the Switch add information (slot number, port number and VLAN ID) and the Circuit ID and Remote ID sub-options to client DHCP requests that it relays to a DHCP server. Tag Option Select Swap position of Circuit ID and Remote ID to have the Switch add information (slot number, port number and VLAN ID) and the Circuit ID and Remote ID sub-option but switch their positions in client DHCP requests that it relays to a DHCP server. Select which information to have the Switch generate and add into the DHCP relay option 82 Circuit ID sub-option for DHCP requests. The variable options include SP, SV, PV and SPV which indicate combinations of slot-port, slot-VLAN, port-VLAN and slot-port-VLAN respectively in ASCII code. Alternatively, select private to have the Switch use the DHCP relay option 82 old format (slot-port-VLAN) in binary. The Switch uses a zero for the slot value in the DHCP requests. An example of the port number is 1 if you select private while it is 31 in ASCII code if you select SP, SV or SPV. VES1724-56 User's Guide 315