ZyXEL VES1724-56B2 User Guide - Page 319

Chapter 35 DHCP The following table describes the labels in this screen. Table 149 IP Application > DHCP > VLAN LABEL VID Remote DHCP Server 1 .. 3 Relay Agent Information Tag Option Delimiter Information DESCRIPTION Enter the ID number of the VLAN to which these DHCP settings apply. Enter the IP address of a DHCP server in dotted decimal notation. Select the Option 82 check box 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. Select which information to have the Switch add information and the Circuit ID sub-option to client DHCP requests the Switch receives with the specified VLAN tag. 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. Select a delimiter to separate the Circuit ID information, slot ID, port number and/or VLAN ID from each other. You can use a pound key (#), semi-colon (;), period (.), comma (,), forward slash (/) or space. Select none to not use any delimiter. Select the first option and enter a string of up to 32 ASCII or binary characters that the Switch adds into the client DHCP requests. Spaces are allowed. Relay Remote ID Remote ID Information Otherwise, select the second option to have the Switch use the system name you configure in the General Setup screen. Select the Remote ID check box to have the Switch add information configured in the Remote ID Information field to client DHCP requests before the Switch relays them to a DHCP server. Append Remote ID by user identifier: Select this to have the Switch add the specified Remote ID user identifier into client DHCP requests with the specified VLAN tag the Switch relays. Spaces are allowed. Append Remote ID by port name: to have the Switch use the name of the port on which the client DHCP requests are received and add it to client DHCP requests with the specified VLAN tag the Switch relays. Remote ID user identifier Remote ID Delimiter Add Cancel Clear VID Type DHCP Status Delete Cancel Append Remote ID by user identifier + port name + port TEL: to have the Switch add the specified Remote ID user identifier, the port's name, and the port's telephone number into client DHCP requests the Switch relays with the specified VLAN tag. Enter a string of up to 63 ASCII characters that the Switch adds into client DHCP requests with the specified VLAN tag the Switch relays. Spaces are allowed. Select a delimiter to separate the slot ID, port number and/or VLAN ID from each other. You can use a pound key (#), semi-colon (;), period (.), comma (,), forward slash (/) or space. Select none to not use any delimiter. Click Add to save your changes to the Switch's run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring. Click Cancel to begin configuring this screen afresh. Click this to clear the fields above. This field displays the ID number of the VLAN group to which this DHCP settings apply. This field displays the DHCP mode (Relay). For DHCP relay configuration, this field displays the first remote DHCP server IP address. Select the configuration entries you want to remove and click Delete to remove them. Click Cancel to clear the Delete check boxes. VES1724-56 User's Guide 319