diff --git a/src/main/resources/assets/opencomputers/lang/en_US.lang b/src/main/resources/assets/opencomputers/lang/en_US.lang
index 5241900ea..de7da1a09 100644
--- a/src/main/resources/assets/opencomputers/lang/en_US.lang
+++ b/src/main/resources/assets/opencomputers/lang/en_US.lang
@@ -37,6 +37,7 @@ item.oc.AbstractBusCard.name=Abstract Bus Card
 item.oc.Acid.name=Grog
 item.oc.ALU.name=Arithmetic Logic Unit (ALU)
 item.oc.Analyzer.name=Analyzer
+item.oc.AppengTunnel.name=P2P Tunnel - OpenComputers
 item.oc.ArrowKeys.name=Arrow Keys
 item.oc.ButtonGroup.name=Button Group
 item.oc.CardBase.name=Card Base
diff --git a/src/main/resources/assets/opencomputers/recipes/default.recipes b/src/main/resources/assets/opencomputers/recipes/default.recipes
index 79a01554c..388cd2a96 100644
--- a/src/main/resources/assets/opencomputers/recipes/default.recipes
+++ b/src/main/resources/assets/opencomputers/recipes/default.recipes
@@ -496,3 +496,8 @@ screen3 {
           [yellowDust, "oc:circuitChip3", glass]
           [obsidian, yellowDust, obsidian]]
 }
+
+appengTunnel {
+  type: shapeless
+  input: [{item="appliedenergistics2:item.ItemMultiPart", subID=460}, "oc:adapter"]
+}
diff --git a/src/main/scala/li/cil/oc/client/Proxy.scala b/src/main/scala/li/cil/oc/client/Proxy.scala
index 354184880..fbd63e85a 100644
--- a/src/main/scala/li/cil/oc/client/Proxy.scala
+++ b/src/main/scala/li/cil/oc/client/Proxy.scala
@@ -1,5 +1,6 @@
 package li.cil.oc.client
 
+import appeng.client.render.BusRenderer
 import cpw.mods.fml.client.registry.ClientRegistry
 import cpw.mods.fml.client.registry.RenderingRegistry
 import cpw.mods.fml.common.FMLCommonHandler
@@ -9,6 +10,7 @@ import cpw.mods.fml.common.event.FMLPreInitializationEvent
 import cpw.mods.fml.common.network.NetworkRegistry
 import li.cil.oc.OpenComputers
 import li.cil.oc.Settings
+import li.cil.oc.api
 import li.cil.oc.client
 import li.cil.oc.client.renderer.PetRenderer
 import li.cil.oc.client.renderer.TextBufferRenderCache
@@ -21,6 +23,7 @@ import li.cil.oc.common.init.Items
 import li.cil.oc.common.tileentity
 import li.cil.oc.common.tileentity.ServerRack
 import li.cil.oc.common.{Proxy => CommonProxy}
+import li.cil.oc.integration.Mods
 import li.cil.oc.util.Audio
 import net.minecraftforge.client.MinecraftForgeClient
 import net.minecraftforge.common.MinecraftForge
@@ -61,6 +64,9 @@ private[oc] class Proxy extends CommonProxy {
     ClientRegistry.bindTileEntitySpecialRenderer(classOf[tileentity.Screen], ScreenRenderer)
 
     MinecraftForgeClient.registerItemRenderer(Items.multi, ItemRenderer)
+    if (Mods.AppliedEnergistics2.isAvailable) {
+      MinecraftForgeClient.registerItemRenderer(api.Items.get("appengTunnel").item(), BusRenderer.instance)
+    }
 
     ClientRegistry.registerKeyBinding(KeyBindings.extendedTooltip)
     ClientRegistry.registerKeyBinding(KeyBindings.materialCosts)
@@ -78,4 +84,4 @@ private[oc] class Proxy extends CommonProxy {
     FMLCommonHandler.instance.bus.register(PetRenderer)
     FMLCommonHandler.instance.bus.register(TextBufferRenderCache)
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/li/cil/oc/common/block/Item.scala b/src/main/scala/li/cil/oc/common/block/Item.scala
index c8a7cc6e5..c5e1a481e 100644
--- a/src/main/scala/li/cil/oc/common/block/Item.scala
+++ b/src/main/scala/li/cil/oc/common/block/Item.scala
@@ -2,12 +2,12 @@ package li.cil.oc.common.block
 
 import java.util
 
+import li.cil.oc.Settings
+import li.cil.oc.api
 import li.cil.oc.client.KeyBindings
 import li.cil.oc.common.tileentity
 import li.cil.oc.util.ItemCosts
 import li.cil.oc.util.ItemUtils
-import li.cil.oc.Settings
-import li.cil.oc.api
 import net.minecraft.block.Block
 import net.minecraft.entity.player.EntityPlayer
 import net.minecraft.item.EnumRarity
diff --git a/src/main/scala/li/cil/oc/common/init/Items.scala b/src/main/scala/li/cil/oc/common/init/Items.scala
index 5b64a1def..80e1da5c4 100644
--- a/src/main/scala/li/cil/oc/common/init/Items.scala
+++ b/src/main/scala/li/cil/oc/common/init/Items.scala
@@ -35,8 +35,10 @@ object Items extends ItemAPI {
   }
 
   def registerBlock[T <: Block](instance: T, id: String) = {
-    instance.setBlockName("oc." + id)
-    GameRegistry.registerBlock(instance, classOf[common.block.Item], id)
+    if (instance.getClass.getName.startsWith("li.cil.oc.")) {
+      instance.setBlockName("oc." + id)
+      GameRegistry.registerBlock(instance, classOf[common.block.Item], id)
+    }
     descriptors += id -> new ItemInfo {
       override def name = id
 
@@ -65,6 +67,10 @@ object Items extends ItemAPI {
   }
 
   def registerItem(instance: Item, id: String) = {
+    if (instance.getClass.getName.startsWith("li.cil.oc.")) {
+      instance.setUnlocalizedName("oc." + id.capitalize)
+      GameRegistry.registerItem(instance, id)
+    }
     descriptors += id -> new ItemInfo {
       override def name = id
 
@@ -256,5 +262,10 @@ object Items extends ItemAPI {
     Recipes.addItem(new item.UpgradeDatabase(multi, Tier.Two), "databaseUpgrade2", "oc:databaseUpgrade2")
     Recipes.addItem(new item.UpgradeDatabase(multi, Tier.Three), "databaseUpgrade3", "oc:databaseUpgrade3")
     registerItem(new item.Debugger(multi), "debugger")
+
+    // 1.4.2
+    if (Mods.AppliedEnergistics2.isAvailable) {
+      Recipes.addItem(new item.AppliedEnergisticsP2PTunnel(), "appengTunnel")
+    }
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/li/cil/oc/common/item/AppliedEnergisticsP2PTunnel.scala b/src/main/scala/li/cil/oc/common/item/AppliedEnergisticsP2PTunnel.scala
new file mode 100644
index 000000000..b7cfb3704
--- /dev/null
+++ b/src/main/scala/li/cil/oc/common/item/AppliedEnergisticsP2PTunnel.scala
@@ -0,0 +1,30 @@
+package li.cil.oc.common.item
+
+import appeng.api.AEApi
+import appeng.api.parts.IPartItem
+import appeng.core.CreativeTab
+import cpw.mods.fml.relauncher.Side
+import cpw.mods.fml.relauncher.SideOnly
+import li.cil.oc.api
+import li.cil.oc.integration.appeng.PartP2POCNode
+import net.minecraft.entity.player.EntityPlayer
+import net.minecraft.item.Item
+import net.minecraft.item.ItemStack
+import net.minecraft.world.World
+
+class AppliedEnergisticsP2PTunnel extends Item with IPartItem {
+  override def createPartFromItemStack(stack: ItemStack) = new PartP2POCNode(stack)
+
+  override def onItemUse(stack: ItemStack, player: EntityPlayer, world: World, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float) =
+    AEApi.instance().partHelper().placeBus(stack, x, y, z, side, player, world) || super.onItemUse(stack, player, world, x, y, z, side, hitX, hitY, hitZ)
+
+  @SideOnly(Side.CLIENT)
+  override def getSpriteNumber = 0
+
+  @SideOnly(Side.CLIENT)
+  override def getIconFromDamage(damage: Int) = api.Items.get("adapter").block().getIcon(2, 0)
+
+  // Override instead of setting manually to be independent of load order.
+  @SideOnly(Side.CLIENT)
+  override def getCreativeTab = CreativeTab.instance
+}
diff --git a/src/main/scala/li/cil/oc/integration/Mods.scala b/src/main/scala/li/cil/oc/integration/Mods.scala
index c3707b455..5e05501b6 100644
--- a/src/main/scala/li/cil/oc/integration/Mods.scala
+++ b/src/main/scala/li/cil/oc/integration/Mods.scala
@@ -19,7 +19,7 @@ object Mods {
 
   def All = knownMods.clone()
 
-  val AppliedEnergistics2 = new SimpleMod(IDs.AppliedEnergistics2, version = "@[rv1,)")
+  val AppliedEnergistics2 = new SimpleMod(IDs.AppliedEnergistics2, version = "@[rv1,)", providesPower = true)
   val BattleGear2 = new SimpleMod(IDs.BattleGear2)
   val BuildCraft = new SimpleMod(IDs.BuildCraft)
   val BuildCraftTiles = new SimpleMod(IDs.BuildCraftTiles)
diff --git a/src/main/scala/li/cil/oc/integration/appeng/LayerSidedEnvironment.scala b/src/main/scala/li/cil/oc/integration/appeng/LayerSidedEnvironment.scala
new file mode 100644
index 000000000..dfb4ac581
--- /dev/null
+++ b/src/main/scala/li/cil/oc/integration/appeng/LayerSidedEnvironment.scala
@@ -0,0 +1,17 @@
+package li.cil.oc.integration.appeng
+
+import appeng.api.parts.LayerBase
+import li.cil.oc.api.network._
+import net.minecraftforge.common.util.ForgeDirection
+
+class LayerSidedEnvironment extends LayerBase with SidedEnvironment {
+  override def sidedNode(side: ForgeDirection) = getPart(side) match {
+    case env: SidedEnvironment => env.sidedNode(side)
+    case _ => null
+  }
+
+  override def canConnect(side: ForgeDirection) = getPart(side) match {
+    case env: SidedEnvironment => env.canConnect(side)
+    case _ => false
+  }
+}
diff --git a/src/main/scala/li/cil/oc/integration/appeng/ModAppEng.scala b/src/main/scala/li/cil/oc/integration/appeng/ModAppEng.scala
index de20fd1b3..5b63c1673 100644
--- a/src/main/scala/li/cil/oc/integration/appeng/ModAppEng.scala
+++ b/src/main/scala/li/cil/oc/integration/appeng/ModAppEng.scala
@@ -1,5 +1,6 @@
 package li.cil.oc.integration.appeng
 
+import appeng.api.AEApi
 import li.cil.oc.api.Driver
 import li.cil.oc.integration.ModProxy
 import li.cil.oc.integration.Mods
@@ -8,9 +9,11 @@ object ModAppEng extends ModProxy {
   override def getMod = Mods.AppliedEnergistics2
 
   override def initialize() {
+    AEApi.instance().partHelper().registerNewLayer("li.cil.oc.integration.appeng.LayerSidedEnvironment", "li.cil.oc.api.network.SidedEnvironment")
+
     Driver.add(DriverController)
     Driver.add(DriverExportBus)
 
     Driver.add(new ConverterCellInventory)
   }
-}
\ No newline at end of file
+}
diff --git a/src/main/scala/li/cil/oc/integration/appeng/PartP2POCNode.scala b/src/main/scala/li/cil/oc/integration/appeng/PartP2POCNode.scala
new file mode 100644
index 000000000..65bdaf47e
--- /dev/null
+++ b/src/main/scala/li/cil/oc/integration/appeng/PartP2POCNode.scala
@@ -0,0 +1,80 @@
+package li.cil.oc.integration.appeng
+
+import appeng.api.config.TunnelType
+import appeng.parts.p2p.PartP2PTunnel
+import cpw.mods.fml.relauncher.Side
+import cpw.mods.fml.relauncher.SideOnly
+import li.cil.oc.api
+import li.cil.oc.api.network._
+import li.cil.oc.common.EventHandler
+import net.minecraft.item.ItemStack
+import net.minecraft.nbt.NBTTagCompound
+import net.minecraftforge.common.util.ForgeDirection
+
+class PartP2POCNode(stack: ItemStack) extends PartP2PTunnel[PartP2POCNode](stack) with Environment with SidedEnvironment {
+  val node = api.Network.newNode(this, Visibility.None).create()
+  api.Network.joinNewNetwork(node)
+
+  var input: Option[Node] = None
+
+  // ----------------------------------------------------------------------- //
+
+  override def onConnect(node: Node) {}
+
+  override def onMessage(message: Message) {}
+
+  override def onDisconnect(node: Node) {}
+
+  override def sidedNode(side: ForgeDirection) = if (proxy.isActive) node else null
+
+  @SideOnly(Side.CLIENT)
+  override def canConnect(side: ForgeDirection) = true
+
+  // ----------------------------------------------------------------------- //
+
+  // TODO Never called, might as well return null. May have to, if enum gets removed.
+  override def getTunnelType = TunnelType.COMPUTER_MESSAGE
+
+  @SideOnly(Side.CLIENT)
+  override def getTypeTexture = api.Items.get("adapter").block().getIcon(2, 0)
+
+  // ----------------------------------------------------------------------- //
+
+  override def onTunnelNetworkChange() {
+    super.onTunnelNetworkChange()
+    if (node != null) {
+      input.foreach(in => if (in != node) node.disconnect(in))
+      input = None
+      if (output) {
+        Option(getInput) match {
+          case Some(part) =>
+            input = Option(part.node)
+            input.foreach(node.connect)
+          case _ =>
+        }
+      }
+    }
+  }
+
+  override def addToWorld() {
+    super.addToWorld()
+    EventHandler.schedule(() => api.Network.joinOrCreateNetwork(getHost.getTile))
+  }
+
+  override def removeFromWorld() {
+    super.removeFromWorld()
+    if (node != null) node.remove()
+  }
+
+  // ----------------------------------------------------------------------- //
+
+  override def readFromNBT(data: NBTTagCompound) {
+    super.readFromNBT(data)
+    node.load(data)
+  }
+
+  override def writeToNBT(data: NBTTagCompound) {
+    super.writeToNBT(data)
+    node.save(data)
+  }
+}
diff --git a/src/main/scala/li/cil/oc/server/network/Component.scala b/src/main/scala/li/cil/oc/server/network/Component.scala
index 60615bb98..5625134d7 100644
--- a/src/main/scala/li/cil/oc/server/network/Component.scala
+++ b/src/main/scala/li/cil/oc/server/network/Component.scala
@@ -129,4 +129,6 @@ trait Component extends network.Component with Node {
     super.save(nbt)
     nbt.setInteger("visibility", _visibility.ordinal())
   }
+
+  override def toString = super.toString + s"@$name"
 }
\ No newline at end of file
diff --git a/src/main/scala/li/cil/oc/server/network/Network.scala b/src/main/scala/li/cil/oc/server/network/Network.scala
index 02a112d15..506ec5476 100644
--- a/src/main/scala/li/cil/oc/server/network/Network.scala
+++ b/src/main/scala/li/cil/oc/server/network/Network.scala
@@ -10,10 +10,10 @@ import li.cil.oc.Settings
 import li.cil.oc.api
 import li.cil.oc.api.network
 import li.cil.oc.api.network.Environment
+import li.cil.oc.api.network.SidedEnvironment
 import li.cil.oc.api.network.Visibility
 import li.cil.oc.api.network.WirelessEndpoint
 import li.cil.oc.api.network.{Node => ImmutableNode}
-import li.cil.oc.api.network.SidedEnvironment
 import li.cil.oc.api.network.{Node => ImmutableNode}
 import li.cil.oc.common.block.Cable
 import li.cil.oc.common.tileentity
@@ -600,6 +600,8 @@ object Network extends api.detail.NetworkAPI {
       edges.foreach(edge => edge.other(this).edges -= edge)
       searchGraphs(edges.map(_.other(this)))
     }
+
+    override def toString = s"$data [${edges.length}]"
   }
 
   private case class Edge(left: Vertex, right: Vertex) {
diff --git a/src/main/scala/li/cil/oc/server/network/Node.scala b/src/main/scala/li/cil/oc/server/network/Node.scala
index 12da4f88f..8f3ac128f 100644
--- a/src/main/scala/li/cil/oc/server/network/Node.scala
+++ b/src/main/scala/li/cil/oc/server/network/Node.scala
@@ -80,6 +80,8 @@ trait Node extends ImmutableNode {
       nbt.setString("address", address)
     }
   }
+
+  override def toString = s"Node($address, $host)"
 }
 
 // We have to mixin the vararg methods individually in the actual