Just a quick update on this, hope it helps...
I've been fooling around with the captive portal CoA and 802.1X auth combo in our lab on a Juniper EX2300-C: tried it first on the Junos version I had running (20.2R3.9) > did not work, the URL was not getting accepted by the switch, which caused the authentication to fail. Traceoptions logs show the following message: "CWA : Invalid URL received. Do not install CWA filter"
However, as from Junos version 20.4R3-S3.4, this seems to work just fine.
FYI: works well on Aruba 2930 switch too ;-)
Sent: Sep 17, 2020 03:50 AM
From: ABDUL HALIM MOHAMMAD
Subject: Juniper EX Url redirect issue
It looks like I face the same issue.
May I know is there any method on how to solve these issue?