I want to implement vpn client applcation for iphone and ipad.
my requirement is to develope an application to enter vpn details and to show the network traffic and the connection.
can anyone please help me in this, how to implement vpn client on iOS.
Looks like the VPN API is not exposed in the Apple iOS.
http://blog.michael.kuron-germany.de/2010/09/ios-4-1-undocumented-vpn-api-used-by-cisco-anyconnect/
Officially, since it's built right into the phone, it most likely won't fly with Apple. Can't you just watch the traffic going through the VPN server instead of watching it at the client?
Did you hear about iConn VPN Client? It is available in apple store and though it is free. You can download the client into your IOS device and i hope that it will work for you.
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I need to communicate my app with 2 devices. A restriction is that I can't use a server but all iOS devices will be in one Wi-Fi network. What options do I have? How I can send a message to another copy of my app running on another device?
I dont know whether its a correct approach or not but as you cannot use server,so the approach i can think of is we can create a socket connection using TCP/IP or UDP(based on reliability) for data exchange.
I dont think you can communicate between 2 devices running the same application without having some kind of server application in-between.
Even if you could find the other device over the WIFI I dont think you can tell if the other device is running the app or not.
I think you may be referring to MultipeerConnectivity
The Multipeer Connectivity framework provides support for discovering
services provided by nearby iOS devices using infrastructure Wi-Fi
networks, peer-to-peer Wi-Fi, and Bluetooth personal area networks and
subsequently communicating with those services by sending
message-based data, streaming data, and resources (such as files).
Source: https://developer.apple.com/library/ios/documentation/MultipeerConnectivity/Reference/MultipeerConnectivityFramework/
Apple Sample:
https://developer.apple.com/library/ios/samplecode/MultipeerGroupChat/Introduction/Intro.html
I have a client claims that my app can't connect to internet despite of he has WiFi connection and Safari application, for example, works fine. Is there any way to setup for specific app NOT to connect to the internet? I use in my app simple ASIHTTTPRequest library to make a connections. Maybe it influenced by jailbroken device? Regards!
No, there is no way to do this in via an iOS setting.
However I've had a problem like this with a client, where to Webservice the app connecting to was blocked by there firewall/proxy.
Later the black was lifted but all calls to the webservice where is cached by the proxy give really weird results.
I would like to make an application for iOS devices that would communicate with a special type of remote device using HTTP POST requests. The problem is that this device would actually act in the role of a client, while iOS device has to be the server accepting the requests. The next problem, host name and port has to be configured statically at the device sending the requests.
While I'm aware it's possible to give it a try using Dynamic DNS services and UPnP/IGD or NAT-PMP to overcome the problem with iOS device being behind the NAT router, I was wondering whether using Bonjour could simplify the problem in some way. I'm quite a newbie in networking so I'm looking for the direction and want to avoid research of Bonjour if it's not going to bring me anything.
Any other idea of how to solve the problem is appreciated as well.
I had a think about this. IMHO you can't guarantee you'll always be able to expose an iOS based service over a WAN (although it's possible) so this isn't practical.
The best solution I suggest is using uPNP to open the device behind a router to the outside world, then have it send an iOS push notification to the iPhone with the details (hostname, ip, port, etc).
The iPhone would then would then have to set up some kind of persistent connection with the firewalled device to receive data.
Bonjour is a good system to discover and connect to services/clients, but only on your local network. I don't think it is a good idea to try it over the internet.
I was just wondering if it is possible to set up a data transfer tunnel between an iPhone and a Mac using the Wifi hardware present on both devices? My main objective is to transfer data from my iPhone to my Mac through an app along an ad hoc wifi connection. If there are any other methods you would like to suggest, then please do.
Looking forward to your replies.
Thanks!
A.K.
You can make use of Bonjour, via NSNetServices and CFNetServices APIs.
Basically:
Create a server on the Mac
Announce the server via Bonjour
Browse Bonjour on the phone and resolve the bonjour service.
Establish connection
Exchange data via socket streams
You cannot automagically do this, yet. That is, you must manually create the ad hoc wireless network (a "computer-to-computer network" in Apple parlance) first on the Mac, then join the iPhone to it just like any other WiFi network. After this, the methods suggested above will work just fine.
What I think you are suggesting, also known as WiFi Direct, is a very new specification that is not yet supported by the iPhone or OS X (as of this writing).
You'd probably want to look at NSNetServices/CFNetServices (Bonjour) for a common API to accomplish that sort of connection.
im working on an iPhone application which requires communication between 2 devices through WiFi.
Can somebody please help me by providing a simple iphone application code for the same which is able to communicate data between the devices...i hv gone through the "witap application" available on the developers site but wasnt able to understand it...
please help..
There's a great 2-part tutorial at MacResearch:
Part One
Part Two
Use the Bonjour , let Device A as the server, and publish service via Bonjour; and in Device B,use the NSNetServiceBrowser to search the published service via device A in the same local network,and connect by socket to send data.
there is a demo here.download.And you can read this article go>>.It helped me before.