USG FLEX 50 Content Filtering not working with chrome browser

zullo_giuseppe

as title, we've configured the USG for content filtering (office profile, eg)

The filter work well with Firefox, and Edge, but chrome seems bypass filter.

we also added (highest priority) a rule for block UDP_443 (QUIC) outgoing traffic, but nothing changed.

what we wrong?

PeterUK

This might have something to do with ECH? You can check here

https://defo.ie/ech-check.php

It works when browser use secure DNS

Zyxel_Kevin

Hi @zullo_giuseppe ,

Greeting Forum,

Please kindly provide capture packets on chrome PC and what office URL you would block.

Thank you

electsystech

I would try blocking port 80 UDP as well.