Use interfaces of current machine for example client

.gitignore

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+node_modules/

example/client.js

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+#!/usr/bin/env node
+
+// Copyright (c) 2014 Andrew Paprocki
+
+var os = require('os')
+
+var util = require('util');
+
+var dhcpjs = require('..');
+
+
+var client = new dhcpjs.Client();
+
+client.on('message', function(pkt) {
+  console.log('message:', util.inspect(pkt, false, 3));
+});
+client.on('dhcpOffer', function(pkt) {
+  console.log('dhcpOffer:', util.inspect(pkt, false, 3));
+});
+client.on('dhcpAck', function(pkt) {
+  console.log('dhcpAck:', util.inspect(pkt, false, 3));
+});
+client.on('dhcpNak', function(pkt) {
+  console.log('dhcpNak:', util.inspect(pkt, false, 3));
+});
+client.on('listening', function(addr) {
+  console.log('listening on', addr);
+});
+client.bind('0.0.0.0', 68, function() {
+  console.log('bound to 0.0.0.0:68');
+});
+
+
+var interfaces = os.getNetworkInterfaces()
+
+for(var name in interfaces)
+{
+  // Configure a DHCPDISCOVER packet:
+  //   xid 0x01               Transaction ID. This is a counter that the DHCP
+  //                          client should maintain and increment every time
+  //                          a packet is broadcast.
+  //
+  //   chaddr                 Ethernet address of the interface being configured
+  //
+  //   options                Object containing keys that map to DHCP options
+  //
+  //   dhcpMessageType        Option indicating a DHCP protocol message (as
+  //                          opposed to a plain BOOTP protocol message)
+  //
+  //   clientIdentifier       Option indicating a client-configured unique name
+  //                          to be used to disambiguate the lease on the server
+  var discover = client.createDiscoverPacket(
+  {
+    xid: 0x01,
+    chaddr: interfaces[name][0].mac,
+    options:
+    {
+      dhcpMessageType: dhcpjs.Protocol.DHCPMessageType.DHCPDISCOVER,
+      clientIdentifier: 'MyMachine',
+    }
+  });
+
+  client.broadcastPacket(discover, undefined, function()
+  {
+    console.log('dhcpDiscover ('+name+'): sent');
+  });
+}