Ping an ip address

Question

I am trying this code in order to ping that ip address in LAN.. the result return is Sorry.

thanks. if u help me

I want to ping that ip of a printer from my device. can i do this.

 String ip_address="\\10.28.81.9";
 boolean reachable=false;  
 TextView txt=(TextView) findViewById(R.id.info);
 InetAddress address;
try {
    address = InetAddress.getByName(ip_address);
    reachable =address.isReachable(3000); 
} catch (UnknownHostException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}  
        if(reachable){
            txt.setText("Got it");
        }else{
            txt.setText("Sorry");

        }

i ahve also tired this by removing \\ with ip address but it still doent works. — Jaffar Raza, Jan 11 '12 at 08:22
Possible duplicate of [java code to ping an IP address](https://stackoverflow.com/questions/11506321/java-code-to-ping-an-ip-address) — Paolo Forgia, Sep 18 '17 at 08:04

score 0 · Answer 1 · answered Jan 11 '12 at 08:18

0

Try removing the \'s at the begining of the address.

answered Jan 11 '12 at 08:18

John Allen

159
4

address = InetAddress.getByName(ip_address); is a problem as it is doing a forward lookup, and you are providing an address. You need to use getByAddress(String host, byte[] addr) – John Allen Jan 11 '12 at 15:43

Ping an ip address

1 Answers1