Cisco Unified Communication Manager for TLS Version 1.1 to 1.2 Version

[amalmichaelvj]

Hello Team,

Will there be any impact if we change TLS in Cisco CUCM from 1.1 to 1.2.

"run set tls min-version 1.2" in CLI .

[Carlo Poggiarelli]

 

 

Hi,

From the security guide:

Before you configure the minimum TLS version, make sure that your network devices and applications both support the TLS version. Also, make sure that they are enabled for TLS that you want to configure with Unified Communications Manager and IM and Presence Services. If you have any of the following products deployed, confirm that they meet the minimum TLS requirement. If they do not meet this requirement, upgrade those products:

• Skinny Client Control Protocol (SCCP) Conference Bridge

• Transcoder

• Hardware Media Termination Point (MTP)

• SIP Gateway

• Cisco Prime Collaboration Assurance

• Cisco Prime Collaboration Provisioning

• Cisco Prime Collaboration Deployment

• Cisco Unified Border Element (CUBE)

• Cisco Expressway

• Cisco TelePresence Conductor

So if you are aware of those services, you can switch to a higher TLS Version

HTH

Regards

Carlo