<?xml version="1.0" encoding="utf-8"?>
<s:View xmlns:fx="http://ns.adobe.com/mxml/2009" 
		xmlns:s="library://ns.adobe.com/flex/spark" title="SampleNetworkInfo">
	
	<fx:Script>
		<![CDATA[
			import flash.events.ErrorEvent;
			import flash.events.MouseEvent;
			import flash.events.UncaughtErrorEvent;
			import flash.net.NetworkInfo;
			import flash.net.NetworkInterface;
			
			import mx.collections.ArrayCollection;
			
			[Bindable]
			protected var ac:ArrayCollection = new ArrayCollection();
			
			protected function button1_clickHandler(event:MouseEvent):void
			{
				var ni:NetworkInfo = NetworkInfo.networkInfo;
				var interfaceVector:Vector.<NetworkInterface> = ni.findInterfaces();
				for each (var item:NetworkInterface in interfaceVector)
				{
					ac.addItem(item);
				}
			}
			
			protected function msgFunc(item:NetworkInterface ):String
			{
				item = item as NetworkInterface;
				return item.hardwareAddress+" active: " + item.active + " mtu: " + item.mtu;
			}
		]]>
	</fx:Script>
	<s:layout>
		<s:VerticalLayout paddingTop="20" paddingBottom="20" paddingLeft="20" paddingRight="20" gap="40" horizontalAlign="center"/>
	</s:layout>
	<s:TextArea width="95%" verticalAlign="justify"
				text="The list below displays the available network interfaces found on the device."/>
	<s:List id="list" dataProvider="{ac}" width="95%" height="80%">
		<s:itemRenderer>
			<fx:Component>
				<s:IconItemRenderer labelField="name" messageField="hardwareAddress" height="48"  
										  paddingTop="8" paddingBottom="8" verticalGap="8"/>
			</fx:Component>
		</s:itemRenderer>
	</s:List>
	<s:Button label="Find Network Interfaces" click="button1_clickHandler(event)" horizontalCenter="0"/>    
</s:View>
qa

Flex: Sample Network Info List

MXML