topic Re: What is QUIC apps on User Usage in Cloud Networking Platform

What is QUIC apps on User Usage

Kevin_Monsta — Wed, 25 Feb 2026 08:51:49 GMT

Hi, anyone knows what is QUIC apps that show in Usage in client details?

Re: What is QUIC apps on User Usage

CMR — Wed, 25 Feb 2026 09:26:55 GMT

It is the Google developed UDP protocol for smoother internet content delivery. It is literally Quick UDP... QUIC - Wikipedia

Re: What is QUIC apps on User Usage

Philip D'Ath — Wed, 25 Feb 2026 21:13:25 GMT

I never knew that was what it stood for. It sounds obvious on reflection.

Re: What is QUIC apps on User Usage

p.deleuw — Fri, 27 Feb 2026 07:14:52 GMT

QUIC is a protocol, initiated by Google, transporting HTTP over UDP. It is more efficient than HTTP/2, which uses TCP. Chromium-based browers should support QUIC, it should be activated by default. Firefox and Safari support QUIC, too, but maybe it is not acitvated by default.
Some webserver implementations support QUIC, but the popular Apache webserver does not. QUIC uses UDP port 443.

In Meraki environments, QUIC will bypass the content filter rules on the MX. You can block QUIC in the application firewall on the MX. This will force the applications to TCP/443, and the content filter works.

Re: What is QUIC apps on User Usage

dunky — Fri, 27 Feb 2026 11:01:18 GMT

@p.deleuw How do you block QUIC in the application firewall on the MX?

Re: What is QUIC apps on User Usage

p.deleuw — Fri, 27 Feb 2026 13:20:00 GMT

Some time ago, you could block QUIC on the MX explicitly in content filtering. This option seems to have disappeared. You'll need to setup a L3 firewall rule and block UDP 443.