NETGEAR GSM7228PS Software Administration Manual page 259

ProSafe 7000 Managed Switch Release 8.0.3
c. In the Dynamic ARP Inspection field, select Enable. A screen similar to the
following displays.
d. Click Apply. A screen similar to the following displays.
Now all the ARP packets received on the ports that are member of the VLAN are copied
to the CPU for ARP inspection. If there are trusted ports, you can configure them as
trusted in the next step. ARP packets received on the trusted ports are not copied to the
CPU.
Note: Make sure the administrator PC has a DHCP snooping entry or can
access the device through the trusted port for ARP. Otherwise, you
might get disconnected from the device.
6. Configure port 1/0/1 as trusted.
a. Select Security > Control > Dynamic ARP Inspection > DAI Interface
Configuration.
b. Select the Interface 1/0/1 check box.
c. For the Trust Mode, select Enable.
Chapter 14. Security Management | 259