void checkRouter()
{
int commlength, miblength, datastart, cpuUtil;
SNMP conn = new SNMP();
byte[] response = new byte[1024];
DateTime time;
string logFile = "routerlog.txt";
fs = new FileStream(logFile, FileMode.OpenOrCreate,
FileAccess.ReadWrite);
sw = new StreamWriter(fs);
while (true)
{
response = conn.get("get", host.Text,
community.Text, "1.3.6.1.4.1.9.2.1.58.0");
if (response[0] == 0xff)
{
results.Items.Add("No reponse from host");
sw.WriteLine("No response from host");
sw.Flush();
break;
}
commlength = Convert.ToInt16(response[6]);
miblength = Convert.ToInt16(response[23 + commlength]);
datastart = 26 + commlength + miblength;
cpuUtil = Convert.ToInt16(response[datastart]);
time = DateTime.Now;
results.Items.Add(time + " CPU Utilization: " + cpuUtil + "%");
sw.WriteLine("{0} CPU Utilization: {1}%", time, cpuUtil);
sw.Flush();
Thread.Sleep(5 * 60000);
}
}
public static void Main(string[] argv)
{
int commlength, miblength, datatype, datalength, datastart;
int uptime = 0;
string output;
SNMP conn = new SNMP();
byte[] response = new byte[1024];
Console.WriteLine("Device SNMP information:");
// Send sysName SNMP request
response = conn.get("get", argv[0], argv[1], "1.3.6.1.2.1.1.5.0");
if (response[0] == 0xff)
{
Console.WriteLine("No response from {0}", argv[0]);
return;
}
// If response, get the community name and MIB lengths
commlength = Convert.ToInt16(response[6]);
miblength = Convert.ToInt16(response[23 + commlength]);
// Extract the MIB data from the SNMP response
datatype = Convert.ToInt16(response[24 + commlength + miblength]);
datalength = Convert.ToInt16(response[25 + commlength + miblength]);
datastart = 26 + commlength + miblength;
output = Encoding.ASCII.GetString(response, datastart, datalength);
Console.WriteLine(" sysName - Datatype: {0}, Value: {1}",
datatype, output);
// Send a sysLocation SNMP request
response = conn.get("get", argv[0], argv[1], "1.3.6.1.2.1.1.6.0");
if (response[0] == 0xff)
{
Console.WriteLine("No response from {0}", argv[0]);
return;
}
// If response, get the community name and MIB lengths
commlength = Convert.ToInt16(response[6]);
miblength = Convert.ToInt16(response[23 + commlength]);
// Extract the MIB data from the SNMP response
datatype = Convert.ToInt16(response[24 + commlength + miblength]);
datalength = Convert.ToInt16(response[25 + commlength + miblength]);
datastart = 26 + commlength + miblength;
output = Encoding.ASCII.GetString(response, datastart, datalength);
Console.WriteLine(" sysLocation - Datatype: {0}, Value: {1}", datatype, output);
// Send a sysContact SNMP request
response = conn.get("get", argv[0], argv[1], "1.3.6.1.2.1.1.4.0");
if (response[0] == 0xff)
{
Console.WriteLine("No response from {0}", argv[0]);
return;
}
// Get the community and MIB lengths
commlength = Convert.ToInt16(response[6]);
miblength = Convert.ToInt16(response[23 + commlength]);
// Extract the MIB data from the SNMP response
datatype = Convert.ToInt16(response[24 + commlength + miblength]);
datalength = Convert.ToInt16(response[25 + commlength + miblength]);
datastart = 26 + commlength + miblength;
output = Encoding.ASCII.GetString(response, datastart, datalength);
Console.WriteLine(" sysContact - Datatype: {0}, Value: {1}",
datatype, output);
// Send a SysUptime SNMP request
response = conn.get("get", argv[0], argv[1], "1.3.6.1.2.1.1.3.0");
if (response[0] == 0xff)
{
Console.WriteLine("No response from {0}", argv[0]);
return;
}
// Get the community and MIB lengths of the response
commlength = Convert.ToInt16(response[6]);
miblength = Convert.ToInt16(response[23 + commlength]);
// Extract the MIB data from the SNMp response
datatype = Convert.ToInt16(response[24 + commlength + miblength]);
datalength = Convert.ToInt16(response[25 + commlength + miblength]);
datastart = 26 + commlength + miblength;
// The sysUptime value may by a multi-byte integer
// Each byte read must be shifted to the higher byte order
while (datalength > 0)
{
uptime = (uptime << 8) + response[datastart++];
datalength--;
}
Console.WriteLine(" sysUptime - Datatype: {0}, Value: {1}",
datatype, uptime);
}
