d1b3e329_ommunity_String_Page___DocWiki__Description
[Field] Host IP address [Description] 
If you choose the Accept SNMP packets only from these hosts radio button, enter an IP address and click Insert to allow the SNMP community string to accept SNMP packets from this host.
Cisco Unified MeetingPlace, Release 7.0 -- Add SNMP Community String Page - DocWiki