Connect to VPN programmatically in iOS 8

Question

Since the release of iOS 8 beta, I found a Network Extension framework in its bundle which is going to let developers configure and connect to VPN servers programmatically a

Answer 1

The problem is the error you are getting when saving: Save error: Error Domain=NEVPNErrorDomain Code=4

If you look in the NEVPNManager.h header file, you will see that error code 4 is "NEVPNErrorConfigurationStale". The configuration is stale and needs to be loaded. You should call loadFromPreferencesWithCompletionHandler: and in the completion handler modify the values you want to modify, and then call saveToPreferencesWithCompletionHandler:. The example in your question is modifying the configuration before the loading is completed, which is why you are getting this error.

More like this:

[manager loadFromPreferencesWithCompletionHandler:^(NSError *error) {
     // do config stuff
     [manager saveToPreferencesWithCompletionHandler:^(NSError *error) {
     }];
}];