C # get native LAN IP and public IP

1. Get LAN IP

IPAddress ipaddr = dns.resolve (Dns.gethostname ()). addresslist[0]; Get current IP address
string IP=ipaddr.tostring ();

2. Get the public network IP

PrivateStaticStringGetIP () {String Tempip ="";Try{WebRequest WR = WebRequest.Create ("Http://www.ip138.com/ips138.asp"); Stream s =wr. GetResponse (). GetResponseStream (); StreamReader sr =New StreamReader (s, Encoding.default); string all = Sr. ReadToEnd (); // read Web site data int start = All. IndexOf ( " Your IP address is: [") + 9int end = All. IndexOf ( "]" , start); Tempip = All. Substring (Start, End- start); Sr. Close (); S.close (); } catch {} return Tempip;}                

3. If the Internet is ADSL, get the public network IP

String=string. Empty;
If>1)
= System.Net.Dns.GetHostEntry (System.Net.Dns.GetHostName ()). addresslist[1]. ToString ();


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C # get native LAN IP and public IP