User's Manual
NPort W2150A/W2250A Series  Web Console: Network Settings 
7-24 
WLAN Log Settings (This function is supported by firmware V1.10 or above) 
Default  Disable 
Options  Disable, Enable 
Description  When the wireless connection between the device server and the AP is not stable, you 
may enable this function to have more information for troubleshooting. You may find 
System Monitoring 
Æ
Æ
 System Status 
Æ
 WLAN Log for the detail logs. Before calling 
for help from Moxa, please enable this function to collect some information. 
Advanced Settings 
On the Advanced Settings page in the Network Settings folder, you can modify Gratuitous ARP. For 
this function, the NPort will actively send ARP packets to inform the devices in the network how to find the 
NPort. If you enable Ethernet/Bridge mode, you can input the IP/MAC address of the legacy device that 
connected to the Ethernet port of the NPort. The NPort will help to send out the ARP packets with its IP 
address to inform the network how to find this legacy device.  
Gratuitous ARP 
Default  Enabled 
Options  Enable / Disable 
Description  Gratuitous ARP requests provide duplicate IP address detection. The NPort sends 
broadcast packets to update ARP tables on other devices (e.g., AP, PC) periodically. We 
can use this function to notify networked devices that the NPort is still alive. Moreover, the 
NPort can send Gratuitous ARP for legacy devices that do not have this function. 
If you want the NPort to send Gratuitous ARP for legacy devices, you should enter the 
legacy devices’ IP and Mac addresses in IP/MAC address field.  
Send Period 
Default  180 seconds 
Options  10-1000 seconds 
Description  This field specifies how long the NPort periodically sends Gratuitous ARP. 
IP/MAC Addresses 
Default N/A 
Options  IP address and MAC address of the legacy device (e.g., IP: “192.168.1.1”, MAC: 
“11:22:33:44:AA:11”). This function only available when Ethernet Bridge is enabled. 
Description IP address: legacy device IP address. 
MAC address: legacy devices MAC address. 










