Chapter 36 DHCP
GS1920 Series User’s Guide
308
36.4.3  Configuring DHCPv4 Global Relay
Use this screen to configure global DHCPv4 relay. Click IP Application > DHCP > DHCPv4 in the 
navigation panel and click the Global link to display the screen as shown.
Figure 214   IP Application > DHCP > DHCPv4 > Global 
string Enter a string of up to 64 ASCII characters that the Switch adds into the client DHCP 
requests. Spaces are allowed.
Remote-ID  Use this section to configure the Remote ID sub-option to include information that identifies 
the relay agent (the Switch).
Enable Select this option to have the Switch append the Remote ID sub-option to the option 82 
field of DHCP requests.
mac Select this option to have the Switch add its MAC address to the client DHCP requests that 
it relays to a DHCP server.
string Enter a string of up to 64 ASCII characters for the remote ID information in this field. 
Spaces are allowed.
Add Click this to create a new entry or to update an existing one.
This saves 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.
Cancel Click Cancel to reset the fields to their last saved values. 
Profile Name This field displays the descriptive name of the profile. Click the name to change the 
settings. 
Circuit-ID
Enable This field displays whether the Circuit ID sub-option is added to client DHCP requests.
Field This field displays the information that is included in the Circuit ID sub-option.
Remote-ID
Enable This field displays whether the Remote ID sub-option is added to client DHCP requests.
Field This field displays the information that is included in the Remote ID sub-option.
Select an entry’s check box to select a specific entry. Otherwise, select the check box in the 
table heading row to select all entries. 
Delete Check the entry(ies) that you want to remove and then click the Delete button.
Cancel Click Cancel to clear the selected check box(es).
Table 149   IP Application > DHCP > DHCPv4 > Option 82 Profile (continued)
LABEL DESCRIPTION