NETGEAR GSM7228PS Software Administration Manual page 429

ProSafe 7000 Managed Switch Release 8.0.3
a. Select System > Services > DHCP L2 Relay > DHCP L2 Relay Interface
Configuration. A screen similar to the following displays.
b. Under DHCP L2 Relay Configuration, scroll down and select the Interface 1/0/6
check box.
c. In the 82 Option Trust Mode field, select Enable.
d. Click Apply to save the settings.
Chapter 27. DHCP L2 Relay and L3 Relay | 429