Unblock VPN FAQ

What are the differences between VPN protocols?

PPTP

  • Wide range OS compatible and easy to use (Windows, Mac, Linux, iOS, routers, phones etc.)
  • 128 bit MPPE encryption & MS-CHAPv2 authentication
  • Suitable for VoIP
  • Good speed and stability
  • Easy to block / restrict
  • Often troubles with router / modem / wireless device passthrough

L2TP over IPSec

  • Some IPSec compatibility issues (doesn't work well on Windows XP and Linux)
  • Strong AES 128bit & AES 256bit encryption provided by IPSec
  • Suitable for VoIP
  • Good speed and stability
  • Easy to block / restrict
  • Often troubles with Firewall / NAT passthrough of IPSec
  • Often troubles with router / modem / wireless device passthrough

SSTP

  • Windows 7 and later Windows systems only
  • Mostly works when the other protocols are blocked
  • Strong encryption provided by the TLS/SSL layer (same as HTTPS)
  • Not suitable for VoIP as it use the TCP connection
  • Lower speed and stability
  • Very hard to detect the tunnel and hard to block or restrict
  • We provide it on multiple TCP ports:
    • 443 (HTTPS)
    • 465 (SMTPS)
    • 563 (NNTPS)
    • 636 (LDAPS)
    • 989 (FTPS data)
    • 990 (FTPS control)
    • 993 (IMAPS)
    • 495 (POP3S)
    • 80 (HTTP)

OpenVPN

  • Compatible with Windows, Mac, Linux, some routers
  • Not so easy to setup
  • Mostly works when the other protocols are blocked
  • Strong encryption provided by the TLS/SSL layer, AES 256 bit encryption
  • Not suitable for VoIP as it use the TCP connection
  • Lower speed and stability
  • Not so easy to detect the tunnel and block it
  • We provide it on multiple TCP ports:
    • 443 (HTTPS)
    • 80 (HTTP)

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