C #. net

C #. netObtain the IP address and MAC address of a computer

 

 

/// <Summary>

/// Obtain the user Client IP address (obtain the real IP address of the remote user through the proxy server)

/// </Summary>

Public static string getclientip ()

{

 

// If a proxy is used, obtain the real IP Address

String userip = string. empty;

If (httpcontext. Current. Request. servervariables ["http_x_forwarded_for"]! = "")

{

Userip = httpcontext. Current. Request. servervariables ["remote_addr"];

}

Else

{

Userip = httpcontext. Current. Request. servervariables ["http_x_forwarded_for"];

}

If (userip = NULL | userip = "")

{

Userip = httpcontext. Current. Request. userhostaddress;

}

Return userip;

// Httprequest request = httpcontext. Current. request;

// Try

//{

// If (httpcontext. Current. Request. servervariables ["http_via"]! = NULL)

//{

// Return httpcontext. Current. Request. servervariables ["http_x_forwarded_for"]. tostring ();

//}

// Else

//{

// Return httpcontext. Current. Request. servervariables ["remote_addr"]. tostring ();

//}

//}

// Catch {return "127.0.0.1 ";}

}

// Obtain the MAC address

Public static string getcustomermac ()

{

String IP = getclientip ();

String dirresults = "";

Processstartinfo psi = new processstartinfo ();

Process proc = new process ();

PSI. filename = "NBTSTAT ";

PSI. redirectstandardinput = false;

PSI. redirectstandardoutput = true;

PSI. Arguments = "-a" + IP;

PSI. useshellexecute = false;

Proc = process. Start (PSI );

Dirresults = Proc. standardoutput. readtoend ();

Proc. waitforexit ();

 

// Match the MAC address

Match m = RegEx. match (dirresults, "\ W + \-\ W \ \ W ");

 

// If the match succeeds, the MAC address is returned; otherwise, the host information cannot be found.

If (M. tostring ()! = "")

{

Return M. tostring ();

}

Else

{

Return "host information not found ";

}

 

}