node-red-contrib-arp/arp/arp.html

This node provides the content of the ARP table

<script type="text/x-red" data-template-name="arp">
	<div class="form-row">
        <label for="node-input-name"><i class="icon-tag"></i>Name</label>
        <input type="text" id="node-input-name" placeholder="Name">
    </div>
  	<div class="form-row">
        <label for="node-input-macs"><i class="icon-tag"></i>MAC address</label>
        <input type="text" id="node-input-macs" placeholder="00:00:00:00:00:00">
    </div>
</script>

<script type="text/x-red" data-help-name="arp">
    <p>This node provides the content of the ARP table.</p>
	<p>It returns the mapping of the network address (IP address) to a physical address (MAC address) of the devices which are connected to the same LAN.</p>
	<p>The output <b>msg.payload</b> is an array of objects containing : </p>
 	<ul>
        <li>ip : the IP address of the device.</li>
        <li>mac : the MAC address of the device.</li>
        <li>iface : the network interface of the device.</li>
    </ul>
	<p>It is possible to filter the results by MAC address :</p>
 	<ul>
        <li>in the node configuration, by providing MAC address (separated by commas if multiple).</li>
        <li>in the input <b>msg.payload.macs</b> message string, by providing MAC address (separated by commas if multiple).</li>
    </ul>
</script>

<script type="text/javascript">
    RED.nodes.registerType('arp',{
        category: 'network',
        color:"#3fadb5",
        defaults: {
            name: {value:"ARP"},
            macs: {value:""}
        },
        inputs:1,
        outputs:1,
        icon: "bridge.png",
        align: "right",
        label: function() {
            return this.name;
        },
        labelStyle: function() {
            return (this.name)?"node_label_italic":"";
        }

    });
</script>