User's Manual
AirWorks AWK-3121 User’s Manual  Web Console Configuration 
Enable 
Setting  Description  Factory Default 
Enable 
Enables TCP/UDP port filter 
Disable 
Disables TCP/UDP port filter 
Disable 
Policy 
Setting  Description  Factory Default 
Accept 
Only the packets fitting the entities 
on list can be allowed. 
Drop 
Any packet fitting the entities on list 
will be denied. 
Drop 
ATTENTION 
Be careful when you enable the filter function: 
Drop + “no entity on list is activated” = all packets are allowed 
Accept + “no entity on list is activated” = all packets are denied 
RSTP Settings (for AP mode only) 
AWK-3121 supports IEEE802.1D Spanning Tree Protocol and IEEE802.1w Rapid STP standards. 
In addition to eliminating unexpected path looping, STP/RSTP can provide a backup path recovery 
if a wired/ wireless path fails accidentally. The reliability and availability can increase because this 
fail-over function. 
AWK-3121’s STP/RSTP feature is disabled by default. To be completely effective, you must 
enable RSTP/STP on every AWK-3121 connected to your network. If AWK-3121 plays a Client 
role, which is connected to a device (PLC, RTU, etc.) as opposed to network switch equipment, it 
is not necessary to enable STP/RSTP. The reason is that it will cause unnecessary negotiation. 
AWK-3121s support STP/RSTP in AP mode (including WDS) only. 
The following figures indicate which Spanning Tree Protocol parameters can be configured. A 
more detailed explanation of each parameter is given below the figure. 
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