Add "dev-type tun" to local options

Plus other hardcoded options like key-method and tls-client.

Seems that older OpenVPN servers didn't send routing info in
PUSH_REPLY if dev-type is not specified explicitly.

Fixes #86

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased
+
+### Fixed
+
+- SoftEther sends an incomplete PUSH_REPLY. [#86](https://github.com/keeshux/tunnelkit/issues/86)
+
 ## 1.6.2 (2019-04-17)
 
 ### Added

TunnelKit/Sources/Core/SessionProxy+Authenticator.swift

@@ -97,9 +97,12 @@ extension SessionProxy {
             // options string
             var opts = [
                 "V4",
+                "dev-type tun",
                 "cipher \(options.fallbackCipher.rawValue)",
                 "auth \(options.fallbackDigest.rawValue)",
-                "keysize \(options.fallbackCipher.keySize)"
+                "keysize \(options.fallbackCipher.keySize)",
+                "key-method 2",
+                "tls-client"
             ]
             if let comp = options.compressionFraming {
                 switch comp {