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com.act365.net.ping
Class Ping  

java.lang.Object
  com.act365.net.ping.Ping

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public class Ping

extends java.lang.Object

Implements the well-known ping network utility.

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Field Summary
(package private)  boolean	isinterrupted
(package private)  java.net.DatagramSocket	socket
(package private)  int	transmitted

 

Constructor Summary

Ping(java.net.DatagramSocket socket, int transmitted)           Creates a Ping object to listen for ICMP messages.

 

Method Summary
void	interrupt()           Interrupts the receive cycle.
static void	main(java.lang.String[] args)           Executes the Ping service.
void	receive()           Listens for ICMP packets.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

socket

java.net.DatagramSocket socket

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transmitted

int transmitted

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isinterrupted

boolean isinterrupted

Constructor Detail

Ping

public Ping(java.net.DatagramSocket socket,
            int transmitted)

Creates a Ping object to listen for ICMP messages.

Method Detail

interrupt

public void interrupt()

Interrupts the receive cycle.

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receive

public void receive()

Listens for ICMP packets.

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main

public static void main(java.lang.String[] args)

Executes the Ping service. Usage: Ping -c count -s nbytes -p protocol -l localhost -t ttl hostname.

-c count (optional) defines the number of packets to be broadcast. By default, the broadcast will continue endlessly.

-s nbytes (optional) defines the number of bytes to appear in each packet. The default is 56.

-p protocol (optional) defines the socket protocol to be used. By default, ICMP will be used - the alternative is RawICMP.

-l localhost (optional) should be specified if the protocol has been set to RawICMP. The information will be used to construct the IP header.

-t ttl (optional) is the time-to-live to be used if the RawICMP protocol has been selected. The default is 64.

hostname define the remote host.

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