I am trying to ping www.google.com using JAVA in my office but it is not pinging the same

Question

I am trying to ping www.google.com in my office network but it is not pinging. Code which i am using is as follows:

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;

public class demo1 {

    public static void main(String[] args) throws UnknownHostException, IOException {
        try {           
            String  address = InetAddress.getByName("www.google.com").getHostAddress();
            InetAddress inet = InetAddress.getByName(address);          
            System.out.println("Sending Ping Request to " + address);
            if(inet.isReachable(50000)){
                System.out.println("Host is reachable");
            }
            else{
                System.out.println("Host is not reachable");
            }           
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

I dont know what is the issue. It cant ping to www.facebook.com or www.youtube.com. I get "Host is not reachable" but it can ping to my office internal systems. In the browser all these external systems like google.com opens but Why it can't ping, I don't know. So, can anyone please help me with this?

The router that connects your office network to the internet might not pass PING packets on, and external servers may not respond to PING anyway. — , Feb 17 '14 at 05:00
Could be a security thing. I wrote a program to post tweets, but it wouldn't connect to Twitter unless I ran it in Administrator mode. — Clark Kent, Feb 17 '14 at 12:06
Is there any alternative pgm using which I can ping external systems in java?? — user3309461, Feb 20 '14 at 12:40

score 0 · Answer 1 · edited May 23 '17 at 12:29

0

There are many other preferred methods of pinging a server, and it appears like isReachable() has some definite design flaws. This has been addressed here: Why does InetAddress.isReachable return false, when I can ping the IP address?

edited May 23 '17 at 12:29

Community

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answered Feb 17 '14 at 05:00

JD Davis

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I am trying to ping www.google.com using JAVA in my office but it is not pinging the same

1 Answers1