topic Re: TLS on 5520 9.1(7) in Network Security

TLS on 5520 9.1(7)

baselzind — Fri, 21 Feb 2020 14:49:17 GMT

the customer have 5520 with 9.1(7)

the customer is asking if he can switch from TLS 1 to TLS 1.2 , my question is what is TLS 1 and what is job exactly? and is it possible to switch to TLS 1.2 on his current setup?

PS:the customer isnt using any vpn

Re: TLS on 5520 9.1(7)

Flavio Miranda — Thu, 23 Nov 2017 10:54:16 GMT

Hi @baselzind

TLS v1.2 is supported from ASA version 9.3 and newer only.

About TLS.

TLS is not used only for VPN on ASA, although this is the most.common usage.

-If I helped you somehow, please, rate it as useful.-

Re: TLS on 5520 9.1(7)

baselzind — Sun, 26 Nov 2017 08:11:33 GMT

the customer has asked me if it is possible to disable or close the TLS , can you please tell me what is the TLS used for ? some colleague told me it is used for ASDM? also how do i close it?

Re: TLS on 5520 9.1(7)

Ankit_Tripathi — Thu, 25 Aug 2022 09:26:22 GMT

Hi Falvio.

I'm having Cisco Adaptive Security Appliance Software Version 9.0(4)42 and only TLS V1 is supported.

Also I'm Having Cisco Adaptive Security Appliance Software Version 9.12(4)4 where tlsv1.2 is supported, so what is minimum OS version to Support TLS1.2 is still in question.

Re: TLS on 5520 9.1(7)

Marvin Rhoads — Thu, 25 Aug 2022 17:07:44 GMT

@Ankit_Tripathi , as @Flavio Miranda correctly noted (5 years ago) ASA 9.3 or later is required for TLS 1.2 support.