diff --git a/integrations/apple/example_app/iOS/Example_iOS_App.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist b/integrations/apple/example_app/iOS/Example_iOS_App.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
new file mode 100644
index 0000000..3f04978
--- /dev/null
+++ b/integrations/apple/example_app/iOS/Example_iOS_App.xcodeproj/xcuserdata/Joseph.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Bucket
+   type = "1"
+   version = "2.0">
+   <Breakpoints>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Example_iOS_App/ViewController.swift"
+            timestampString = "492476189.334255"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "56"
+            endingLineNumber = "56"
+            landmarkName = "UI_TX(_:)"
+            landmarkType = "5">
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Example_iOS_App/ViewController.swift"
+            timestampString = "492477955.572263"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "249"
+            endingLineNumber = "249"
+            landmarkName = "update_rx()"
+            landmarkType = "5">
+         </BreakpointContent>
+      </BreakpointProxy>
+      <BreakpointProxy
+         BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
+         <BreakpointContent
+            shouldBeEnabled = "No"
+            ignoreCount = "0"
+            continueAfterRunningActions = "No"
+            filePath = "Example_iOS_App/ViewController.swift"
+            timestampString = "492482204.82335"
+            startingColumnNumber = "9223372036854775807"
+            endingColumnNumber = "9223372036854775807"
+            startingLineNumber = "283"
+            endingLineNumber = "283"
+            landmarkName = "update_rx()"
+            landmarkType = "5">
+         </BreakpointContent>
+      </BreakpointProxy>
+   </Breakpoints>
+</Bucket>
diff --git a/integrations/apple/example_app/iOS/Example_iOS_App/Base.lproj/Main.storyboard b/integrations/apple/example_app/iOS/Example_iOS_App/Base.lproj/Main.storyboard
index ef01e0a..60d218c 100644
--- a/integrations/apple/example_app/iOS/Example_iOS_App/Base.lproj/Main.storyboard
+++ b/integrations/apple/example_app/iOS/Example_iOS_App/Base.lproj/Main.storyboard
@@ -79,7 +79,7 @@
                                 </connections>
                             </segmentedControl>
                             <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="ZeroTier iOS Example App" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="h4F-YA-Rsh">
-                                <rect key="frame" x="20" y="42" width="200" height="21"/>
+                                <rect key="frame" x="20" y="59" width="200" height="21"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                 <color key="textColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
                                 <nil key="highlightedColor"/>
@@ -122,7 +122,7 @@
                                 </connections>
                             </button>
                             <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="IXS-rJ-KKM">
-                                <rect key="frame" x="208" y="77" width="30" height="30"/>
+                                <rect key="frame" x="208" y="94" width="30" height="30"/>
                                 <state key="normal" title="Join"/>
                                 <connections>
                                     <action selector="UI_JoinNetwork:" destination="BYZ-38-t0r" eventType="touchUpInside" id="kem-tf-1h1"/>
@@ -130,18 +130,30 @@
                                 </connections>
                             </button>
                             <textField opaque="NO" clipsSubviews="YES" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="left" contentVerticalAlignment="center" text="nwid" borderStyle="roundedRect" textAlignment="natural" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="TvY-qZ-Zjm">
-                                <rect key="frame" x="20" y="77" width="167" height="30"/>
+                                <rect key="frame" x="20" y="94" width="167" height="30"/>
                                 <fontDescription key="fontDescription" type="system" pointSize="14"/>
                                 <textInputTraits key="textInputTraits"/>
                             </textField>
                             <button opaque="NO" contentMode="scaleToFill" fixedFrame="YES" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="fU2-IH-aMf">
-                                <rect key="frame" x="208" y="105" width="40" height="30"/>
+                                <rect key="frame" x="208" y="122" width="40" height="30"/>
                                 <state key="normal" title="Leave"/>
                                 <connections>
                                     <action selector="UI_LeaveNetwork:" destination="BYZ-38-t0r" eventType="touchUpInside" id="7Pg-IK-dMo"/>
                                     <action selector="btnLeaveNetwork:" destination="BYZ-38-t0r" eventType="touchUpInside" id="hmg-2Y-GCl"/>
                                 </connections>
                             </button>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" usesAttributedText="YES" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Q7W-t2-dqo">
+                                <rect key="frame" x="20" y="28" width="320" height="28"/>
+                                <attributedString key="attributedText">
+                                    <fragment content="-1.-1.-1.-1/-1">
+                                        <attributes>
+                                            <color key="NSColor" red="0.0" green="0.0" blue="0.0" alpha="1" colorSpace="calibratedRGB"/>
+                                            <font key="NSFont" size="24" name="HelveticaNeue"/>
+                                        </attributes>
+                                    </fragment>
+                                </attributedString>
+                                <nil key="highlightedColor"/>
+                            </label>
                         </subviews>
                         <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
                         <variation key="default">
@@ -159,6 +171,7 @@
                         <outlet property="btnLeaveNetwork" destination="fU2-IH-aMf" id="YwN-GB-2tc"/>
                         <outlet property="btnRX" destination="dp1-qj-Mq8" id="vVr-s4-AX9"/>
                         <outlet property="btnTX" destination="BfY-Te-yWV" id="KTA-eE-Rhy"/>
+                        <outlet property="lblAddress" destination="Q7W-t2-dqo" id="m0T-dL-QB1"/>
                         <outlet property="segmentProtocol" destination="vwT-sy-CRY" id="BcU-8W-7kX"/>
                         <outlet property="txtAddr" destination="6id-4C-E8W" id="q3w-zX-ZFf"/>
                         <outlet property="txtNWID" destination="TvY-qZ-Zjm" id="1Jc-3U-PIE"/>
diff --git a/integrations/apple/example_app/iOS/Example_iOS_App/ViewController.swift b/integrations/apple/example_app/iOS/Example_iOS_App/ViewController.swift
index 7b2ab14..ea16cae 100644
--- a/integrations/apple/example_app/iOS/Example_iOS_App/ViewController.swift
+++ b/integrations/apple/example_app/iOS/Example_iOS_App/ViewController.swift
@@ -11,7 +11,7 @@ import UIKit
 class ViewController: UIViewController {
 
     var serverPort:UInt16 = 8080
-    var serverAddr:String = "10.9.9.203"
+    var serverAddr:String = "10.9.9.100"
     var selectedProtocol:Int32 = 0
     var sock:Int32 = -1
     var accepted_sock:Int32 = -1
@@ -39,7 +39,9 @@ class ViewController: UIViewController {
         // UDP
         if(selectedProtocol == SOCK_DGRAM)
         {
-            // recvfrom
+            var buffer = [UInt8](count: 100, repeatedValue: 0)
+            read(sock, &buffer, 100);
+            print(buffer)
         }
     }
     
@@ -50,13 +52,12 @@ class ViewController: UIViewController {
         // TCP
         if(selectedProtocol == SOCK_STREAM)
         {
-            print("writing...")
             write(sock, txtTX.description, txtTX.description.characters.count);
         }
         // UDP
         if(selectedProtocol == SOCK_DGRAM)
         {
-            // sendto
+            sendto(sock, txtTX.description, txtTX.description.characters.count, 0, UnsafePointer<sockaddr>([udp_addr]), UInt32(udp_addr.sin_len))
         }
     }
     
@@ -132,6 +133,8 @@ class ViewController: UIViewController {
     var bind_thread : NSThread!
     func attempt_bind()
     {
+        var err:Int32
+        
         // TCP
         if(selectedProtocol == SOCK_STREAM)
         {
@@ -169,10 +172,23 @@ class ViewController: UIViewController {
         // UDP
         if(selectedProtocol == SOCK_DGRAM)
         {
+            var addr = sockaddr_in(sin_len: UInt8(sizeof(sockaddr_in)),
+                                   sin_family: UInt8(AF_INET),
+                                   sin_port: UInt16(serverPort).bigEndian,
+                                   sin_addr: in_addr(s_addr: 0),
+                                   sin_zero: (0,0,0,0,0,0,0,0))
+
             
+            sock = zt_socket(AF_INET, SOCK_DGRAM, 0)
+            err = zt_bind(sock, UnsafePointer<sockaddr>([addr]), UInt32(addr.sin_len))
+            print("bind_err = ", err)
+            
+            err = zt_listen(sock, 0)
+            print("listen_err = ", err)
         }
     }
     
+    @IBOutlet weak var txtAddress: UITextField!
     // Bind a ZeroTier socket
     @IBAction func UI_Bind(sender: AnyObject) {
         dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
@@ -181,16 +197,27 @@ class ViewController: UIViewController {
         });
     }
 
+    @IBOutlet weak var lblAddress: UILabel!
+    
+    
+    var udp_addr:sockaddr_in!
+    
     // Watch for incoming data
     var rx_thread : NSThread!
     func update_rx() {
         while(true)
         {
             sleep(1)
+            dispatch_async(dispatch_get_main_queue()) {
+                var str_buf = [Int8](count: 16, repeatedValue: 0)
+                zt_get_addresses(self.txtNWID.text!, &str_buf);
+                self.lblAddress.text = String.fromCString(str_buf)
+            }
+            
             // TCP
             if(selectedProtocol == SOCK_STREAM)
             {
-                var len = 32
+                let len = 32
                 var buffer = [UInt8](count: len, repeatedValue: 0)
                 let n = read(accepted_sock, &buffer, len);
                 if(n > 0)
@@ -207,7 +234,86 @@ class ViewController: UIViewController {
             // UDP
             if(selectedProtocol == SOCK_DGRAM)
             {
-                // recvfrom
+                let len = 32
+                var buffer = [UInt8](count: len, repeatedValue: 0)
+
+                /*
+                udp_addr = sockaddr_in(sin_len: UInt8(sizeof(sockaddr_in)),
+                            sin_family: UInt8(AF_INET),
+                            sin_port: UInt16(0).bigEndian,
+                            sin_addr: in_addr(s_addr: 0),
+                            sin_zero: (0,0,0,0,0,0,0,0))
+                
+                var addrlen:socklen_t = 0;
+                var legIntPtr = withUnsafeMutablePointer(&addrlen, { $0 })
+                let n = recvfrom(sock, &buffer, len, 0, UnsafeMutablePointer<sockaddr>([udp_addr]), legIntPtr)
+                */
+                
+                
+                var socketAddress = sockaddr_storage()
+                var socketAddressLength = socklen_t(sizeof(sockaddr_storage.self))
+                
+                let bytesRead = withUnsafeMutablePointers(&socketAddress, &socketAddressLength) {
+                    recvfrom(sock, UnsafeMutablePointer<Void>(buffer), len, 0, UnsafeMutablePointer($0), UnsafeMutablePointer($1))
+                    //recvfrom(<#T##Int32#>, <#T##UnsafeMutablePointer<Void>#>, <#T##Int#>, <#T##Int32#>, <#T##UnsafeMutablePointer<sockaddr>#>, <#T##UnsafeMutablePointer<socklen_t>#>)
+                }
+                
+
+                
+                /*
+                let host = CFHostCreateWithName(kCFAllocatorDefault, "google.com").takeRetainedValue()
+                var resolved = CFHostStartInfoResolution(host, .Addresses, nil)
+                let addresses = CFHostGetAddressing(host, &resolved)?.takeUnretainedValue() as! [NSData]?
+
+                
+                if let data = addresses?.first {*/
+                    //var storage = sockaddr_storage()
+                    //data.getBytes(&storage, length: sizeof(sockaddr_storage))
+                    
+                  //  if Int32(storage.ss_family) == AF_INET {
+                    //    let addr4 = withUnsafePointer(&storage) { UnsafePointer<sockaddr_in>($0).memory }
+                        
+                        // prints 74.125.239.132
+                      //  print(String(CString: inet_ntoa(addr4.sin_addr), encoding: NSASCIIStringEncoding))
+                   // }
+               // }
+                
+                
+                //var s_addr:sockaddr_in = (sockaddr_in)&socketAddress
+                
+                //var s_addr = UnsafeMutablePointer<sockaddr>(storage)
+                
+                if(bytesRead > 0)
+                {
+                    
+                    //try withUnsafeMutablePointer(&socketAddress) {
+                    //    try sendto(sock, buffer, len, 0, UnsafeMutablePointer<sockaddr>($0), socklen_t(socketAddress.sin.sin_len))
+                    //}
+                    
+                    print("socketAddressLength = ", socketAddressLength);
+
+                    
+                    let bytesWritten = withUnsafePointer(&socketAddress) {
+                        print("TXing...\n");
+                        sendto(sock, UnsafePointer(buffer), bytesRead, 0, UnsafePointer<sockaddr>($0), socketAddressLength)
+                    }
+                    
+                    print("bytesWritten = ", bytesWritten);
+                    
+                    /*
+                    let bytesWritten = withUnsafePointer(&socketAddress.sin) {
+                        sendto(sock, buffer, len, 0, UnsafePointer($0), socklen_t(socketAddress.sin.sin_len))
+                    }
+*/
+
+                    if let str = String(data: NSData(bytes: &buffer, length: len), encoding: NSUTF8StringEncoding) {
+                        dispatch_async(dispatch_get_main_queue()) {
+                            self.txtRX.text = str
+                        }
+                    } else {
+                        print("not a valid UTF-8 sequence")
+                    }
+                }
             }
         }
     }
@@ -216,13 +322,13 @@ class ViewController: UIViewController {
     var service_thread : NSThread!
     func ztnc_start_service() {
         let path = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
-        start_service_and_rpc(path[0],"XXXXXXXXXXXXXXXX")
+        start_service_and_rpc(path[0],"8056c2e21c000001")
     }
 
     override func viewDidLoad() {
         super.viewDidLoad()
         
-        txtNWID.text = "XXXXXXXXXXXXXXXX"
+        txtNWID.text = "8056c2e21c000001"
         txtTX.text = "welcome to the machine"
         txtAddr.text = "0.0.0.0"
         serverAddr = "0.0.0.0"
diff --git a/src/SDK_Apple-Bridging-Header.h b/src/SDK_Apple-Bridging-Header.h
index 04114bb..83248ab 100644
--- a/src/SDK_Apple-Bridging-Header.h
+++ b/src/SDK_Apple-Bridging-Header.h
@@ -17,6 +17,7 @@ void enable_intercept();
 
 void zt_join_network(const char *nwid);
 void zt_leave_network(const char *nwid);
+void zt_get_addresses(const char *nwid, char * addrstr);
 
 // Direct Call ZT API
 // These functions will provide direct access to ZT-enabled sockets with no hassle
diff --git a/src/SDK_XcodeWrapper.cpp b/src/SDK_XcodeWrapper.cpp
index 9d6176a..fd16b7c 100755
--- a/src/SDK_XcodeWrapper.cpp
+++ b/src/SDK_XcodeWrapper.cpp
@@ -47,15 +47,20 @@ extern "C" void start_service_and_rpc(const char * path, const char * nwid) {
 }
 
 // Joins a ZeroTier virtual network
-extern "C" void zt_join_network(const char * nwid){
+extern "C" void zt_join_network(const char * nwid) {
     zts_join_network(nwid);
 }
 
 // Leaves a ZeroTier virtual network
-extern "C" void zt_leave_network(const char * nwid){
+extern "C" void zt_leave_network(const char * nwid) {
     zts_leave_network(nwid);
 }
 
+// Returns a list of addresses associated with this device on the given network
+extern "C" void zt_get_addresses(const char * nwid, char * addrstr) {
+    zts_get_addresses(nwid, addrstr);
+}
+
 // Explicit ZT API wrappers
 #if !defined(__IOS__)
     // This isn't available for iOS since function interposition isn't as reliable