SNMP Code Example: Interpret a MAC or IP address value

If a response from an agent is a MAC or IP address, you will need to use the ValueB field of the Objects collection instead of the Value field. For instance:

SNMPObject obj = new SNMPObject(); obj.Oid = "1.3.6.1.2.1.2.2.1.6"; snmpmgr1.Objects.Add(obj); snmpmgr1.SendGetRequest(); string MACAddress = null; for (int i = 0; i < snmpmgr1.Objects[0].ValueB.Length; i++) { MACAddress += snmpmgr1.Objects[0].ValueB[i].ToString("X") + " "; }

Delphi


var MACAddress :  String;
var i : Integer;
var response : RawByteString;
begin
    SNMPMgr1.ObjCount := 1;
    SNMPMgr1.ObjId[0] := '1.3.6.1.2.1.2.2.1.6';
    SNMPMgr1.SendGetRequest();
    response := SNMPMgr1.ObjValueB[0];
    for i:= 0 to Length(response) do
    begin
        MACAddress := MACAddress + ' ' + IntToHex(ord(response[i]),2);
    end;
    ShowMessage(MACAddress);
end;

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