Is the port to the inner network configured as an ARP
Inspection “trust” port?
The inner network’s port should be configured as a trust port. This is because there
are locally resources such as severs or gateways which are classified as trusted
devices managed by the administrators. If the inner network is configured as an
untrusted port, then any local resources that uses static IP addresses will not be able
to communicate with other devices.
Using Web GUI:
Figure 4 Advance Application > IP Source Guard > IP Source Guard Setup >
ARP Inspection> Configure > Port
Using CLI:
Figure 5