When min version of HTTPs Inspection set to TLS 1.1, some websites stop working

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Technical Level

Solution ID	sk165555
Technical Level
Product	HTTPS Inspection
Version	R80.20 (EOL), R80.30 (EOL), R80.40
OS	Gaia
Date Created	03-Mar-2020
Last Modified	05-Jul-2020

Symptoms

When setting the ssl_min_ver parameter to TLS 1.1. some websites stop working.

Cause

This issue occurs due to the web server's implementation of the TLS 1.2 protocol.

HTTPS Inspection as a TLS client sets the record layer version to the minimum TLS version configured as the TLS 1.2 RFC allows. When set to TLS 1.1, some Web Servers don’t handle it well and terminate the connection

Solution

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