Can Sophos Network Extension SSL inspection work with Firewall SSL inspection feature?

Zyxel_James

Question: Can Sophos Network Extension SSL inspection work with Firewall SSL inspection feature?

Answer: It would cause browsing problem. Sophos will detect the zyxel ssl inspection as MITM attack, so drops the HTTPS traffic.
First, HTTPS traffic will be intercepted by Sophos, and certificate will be re-sighed. Then the traffic will be intercepted by Zyxel Firewall again.
MacOS Safari browser may not encounter issues because its validation rules are more lenient, while Chrome applies stricter checks