How to enable QUIC on ADC


  • Must have QUIC enabled in GUI/conf
  • Must use either Chrome or Opera with QUIC enabled
  • Must not use self-signed certificates
  • QUIC will not work with a proxy front end like CloudFlare

Create a listener with security enabled

  • Navigate to WebAdmin Console > Configuration > Listeners and press the Add button.
  • Choose HTTP then press the Next button.
  • Set Listener Name to LS-443.
  • Set Port to 443.
  • Set Secure to Yes.
  • Press the Save button.

Configure your Public SSL Private Key & Certificate

  • While still in Listener Configuration, select the SSL tab.
  • Point Private Key File, Certificate File and CA Certificate File to your certificate file location.

Enable the QUIC function

  • On the same page, scroll down to Security Features
  • Set Enable QUIC to Yes

Firewall Configuration

QUIC (Quick UDP Internet Connections) runs a stream-multiplexing protocol over Transport Layer Security (TLS) on top of UDP instead of TCP. Be sure you've enabled the port with both TCP and UDP.

How to verify QUIC is enabled

There’s a Chrome extension which will allow you to see the protocols at work on any website. Install HTTP/2 and SPDY indicator, and you will see a lightning bolt in the Chrome toolbar. Blue indicates HTTP/2 is enabled. Green indicates HTTP/2 + QUIC. Hover over the lightning bolt to see a more detailed list of protocols in action.

litespeed_wiki/lslb/enable_quic.txt · Last modified: 2017/07/17 13:45 by Eric Leu