@class NSString, NSArray, NSData, NEIdentityKeychainItem, NEKeychainItem; @interface NEVPNProtocolL2TP : NEVPNProtocolPPP { BOOL _machineIdentityDataImported; NEIdentityKeychainItem *_machineIdentity; NSData *_machineIdentityDataInternal; } @property long long machineAuthenticationMethod; @property (copy) NSData *sharedSecretReference; @property (copy) NEKeychainItem *sharedSecretKeychainItem; @property (copy) NSData *machineIdentityReference; @property (copy) NSString *localIdentifier; @property (retain) NSArray *userPreferences; + (BOOL)supportsSecureCoding; - (BOOL)checkValidityAndCollectErrors:(id)a0; - (id)init; - (id)descriptionWithIndent:(int)a0 options:(unsigned long long)a1; - (void)encodeWithCoder:(id)a0; - (void).cxx_destruct; - (id)initWithCoder:(id)a0; - (id)copyWithZone:(struct _NSZone { } *)a0; - (struct __SCNetworkInterface { } *)createInterface; - (id)copyLegacyIPSecDictionary; - (void)migratePasswordsFromPreferences:(struct __SCPreferences { } *)a0; - (BOOL)needToUpdateKeychain; - (void)removeKeychainItemsInDomain:(long long)a0 keepIdentity:(BOOL)a1; - (void)setIPSecSettingsFromLegacyDictionary:(id)a0; - (BOOL)setServiceProtocolsInService:(struct __SCNetworkService { } *)a0; - (void)syncWithKeychainInDomain:(long long)a0 configuration:(id)a1 suffix:(id)a2; - (BOOL)updateWithServiceProtocolsFromService:(struct __SCNetworkService { } *)a0; @end