d1b3e329_ommunity_String_Page___DocWiki__Description
[Field] Host IP addresses [Description] 
If you choose the Accept SNMP packets only from these hosts radio button, this field lists all hosts from which this SNMP community string can accept SNMP packets. To remove a host from this list, highlight the IP address and click Remove.
Cisco Unified MeetingPlace, Release 7.0 -- Add SNMP Community String Page - DocWiki