C # Use the ping command

Method 1: Call the ping command of CMD.

Private Static string strip Ping (string strip)

{

PROCESS p = new process (); p. startinfo. filename = "cmd.exe"; // set the program name

P. startinfo. useshellexecute = false; // close shell usage

P. startinfo. redirectstandardinput = true; // redirect standard input

P. startinfo. redirectstandardoutput = true; // redirect standard output

P. startinfo. redirectstandarderror = true; // redirect error output

P. startinfo. createnowindow = true; // you can specify not to display a window.

String pingrst; p. Start (); p. standardinput. writeline ("ping" + strip );

P. standardinput. writeline ("exit ");

String strrst = P. standardoutput. readtoend ();

If (strrst. indexof ("(0% loss )")! =-1)

{

Pingrst = "connection ";

}

Else if (strrst. indexof ("destination host unreachable .")! =-1)

{

Pingrst = "unable to reach the target host ";

}

Else if (strrst. indexof ("request timed out .")! =-1)

{

Pingrst = "timeout ";

}

Else if (strrst. indexof ("unknown host ")! =-1)

{

Pingrst = "unable to Resolve Host ";

}

Else

{

Pingrst = strrst;

}

P. Close ();

Return pingrst;

}

 

Method 2: Use the ping class in C #

Private void displayreply (pingreply reply) // display the result

{

Ping p1 = new Ping (); // only demo, no error handling

Pingreply reply = p1.send ("fill in IP Address ");

 

Stringbuilder sbuilder;

If (reply. Status = ipstatus. Success)

{

Sbuilder = new stringbuilder ();

Sbuilder. append (string. Format ("Address: {0}", reply. Address. tostring ()));

Sbuilder. append (string. Format ("roundtrip time: {0}", reply. roundtriptime ));

Sbuilder. append (string. Format ("time to live: {0}", reply. Options. TTL ));

Sbuilder. append (string. Format ("Don't fragment: {0}", reply. Options. dontfragment ));

Sbuilder. append (string. Format ("buffer size: {0}", reply. Buffer. Length ));

Response. Write (sbuilder. tostring ());

}

Else if (reply. Status = ipstatus. Timeout)

{

Response. Write ("timeout ");

} Else {

Response. Write ("failed ");

}

 

}