SetRandom() in Integer32 was setting very high high value and its getting rejected by some SNMP Devices

[mspratap6]

During my uses of this library i found that some devices was not returning same request id in response, this was due to SetRandom() was setting very high value thus requestid to server was getting set as 0.

to fix this i have changed

                public void SetRandom()
                {
                        Random rand = new Random();
-                       _value = rand.Next();
+                       _value = rand.Next(0, 9999);
                }

will further analyse this issue then will create a pull request for the same.