Registers an SNMP contact's IP address and the port on which the contact is listening for SNMP traps. Setting this value is used to CREATE a table entry in a non-standard way. Getting this value will return a string INADDR_ANY and any port number. The port number should always be included. When unregistering an SNMP contact, the requester's IP address should be provided with a port number of 0. When setting or unsetting this OID, the IP address string should never be 0 nor should it be empty. The registration uses its default community string to register each contact. To use a community other than the default, then it must be appended to the end of the string delimited with a comma. The address should be of the format 0.0.0.0:00000 for IPv4. If IPv6 is supported, use the bracket-enclosed format given in IETF RFC 2732 Section 2, with the following examples: [FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:80 [1080:0:0:0:8:800:200C:417A]:162 [3ffe:2a00:100:7031::1]:162 [1080::8:800:200C:417A]:162,myCommunity [::192.9.5.5]:162,myCommunity [::FFFF:129.144.52.38]:80 [2010:836B:4179::836B:4179]:162