Updated README

Author: ancwrd1

README.md

@@ -25,7 +25,7 @@ This project contains the source code for an unofficial Linux client for Check P
 * HW token support via PKCS11 (only with IPSec tunnel)
 * GTK frontend with tray icon
 * SSL tunnel via Linux TUN device
-* IPSec tunnel via Linux native kernel XFRM interface
+* IPSec tunnel via Linux native kernel XFRM interface or TCPT/TUN transport
 * Store passwords in the keychain using Secret Service API
 * Automatic IPSec tunnel reconnection without authentication (via optional parameter)
 
@@ -73,9 +73,9 @@ and it functions via a TUN device rather than relying on the kernel's IPSec infr
 
 |                                | SSL                                                                   | IPSec                                                                                                                                                                                  |
 |--------------------------------|-----------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| Implementation                 | User-space TCP-encapsulated tunnel via TUN device                     | Kernel-space UDP-encapsulated tunnel via native OS support                                                                                                                             |
-| Performance                    | Up to 2MB/s                                                           | Close to plain connection, limited by VPN server capacity                                                                                                                              |
-| Ports                          | TCP port 443                                                          | UDP ports 4500 and 500                                                                                                                                                                 |
+| Implementation                 | User-space TCP-encapsulated tunnel via TUN device                     | Kernel-space UDP-encapsulated tunnel via native OS support or user-space TCPT tunnel.                                                                                                  |
+| Performance                    | Up to 2MB/s                                                           | Close to plain connection for native UDP tunnel, 2-5 MB/s for TCPT transport.                                                                                                          |
+| Ports                          | TCP port 443                                                          | UDP ports 4500 and 500 for native UDP tunnel, TCP port 443 for TCPT transport.                                                                                                         |
 | Supported authentication types | <ul><li>Username/password + MFA codes</li><li>Certificate</li></ul>   | <ul><li>Username/password + MFA codes</li><li>Certificate + MFA codes</li><li>Certificate from hardware token + MFA codes</li><li>SAML SSO with browser-based authentication</li></ul> |