TP-Link EAP110 User Manual page 63

Set Source: Defines the IP address (for example, 10.10.10.1) or subnet for management
systems that can serve as Set Community to read and write the SNMP
information of this device. The format of subnet is "IP address/bit" (such as
10.10.10.0/24). The default is 0.0.0.0, which means all hosts can read and write
the SNMP information of this device.
NOTE:
Defining community can allow management systems in the same community to communicate
with the SNMP Agent. The community name can be seen as the shared password of the network
hosts group. Thus, for the security, we suggest modifying the default community name before
enabling the SNMP Agent service. If the field of community is blank, the SNMP Agent will not
respond to any community name.
56