Use the NetworkExtension library to configure VPN and networkextensionvpn

Use the NetworkExtension library to configure VPN and networkextensionvpn

VPN is simply a channel connecting to the LAN. After Ios8, Apple added a VPN interface NEVPNManager, which can easily add VPN connections.

First in your Xcode, go to TARGETS-> Capabilities-> open persion VPN

Add the NetWorkExtension Library to the Project

 

After the header file <NetworkExtension/NEVPNManager. h> is introduced

// Create a management object

NEVPNManager * vpnManager = [NEVPNManager sharedManager];

Load the VPN from the settings

// Configure the VPN

[Manager loadFromPreferencesWithCompletionHandler: ^ (NSError * _ Nullable error ){

NEVPNProtocolIPSec * set = (NEVPNProtocolIPSec *) self. manager. protocolConfiguration;

If (! Set)

{

Set = [[NEVPNProtocolIPSec alloc] init];

}

Set. username = @ "username"; // VPN username

Set. passwordReference = [@ "password" dataUsingEncoding: NSUTF8StringEncoding]; // VPN password

Set. serverAddress = @ "ip"; // ip address

Set. sharedSecretReference = [@ "SecretReference" dataUsingEncoding: NSUTF8StringEncoding];

// NEVPNIKEAuthenticationMethodCertificate: uses the certificate and private key as the authentication credential.

// NEVPNIKEAuthenticationMethodSharedSecret: used to authenticate creden

Set. authenticationMethod = NEVPNIKEAuthenticationMethodSharedSecret;

Set. useExtendedAuthentication = YES; // This is a flag indicating that extension verification will be negotiated if

Set. disconnectOnSleep = NO; // This Boolean indicates whether the device must be disconnected to sleep during VPN connection.

Self. manager. protocolConfiguration = set;

Self. manager. localizedDescription = @ "hrjd"; // description of the VPN

[Self. manager setOnDemandEnabled: YES];

[Self. manager saveToPreferencesWithCompletionHandler: ^ (NSError * _ Nullable error ){

NSError * error1;

// Connect to the VPN

[Manager. connection startVPNTunnelAndReturnError: & error1];

If (error ){

NSLog (@ "VPN connection failed ");

} Else {

NSLog (@ "VPN connection successful ");

}

}];

}];

 

[VpnManager. connection stopVPNTunnel];

// Disconnect the VPN