Decryption policy and SNI

Reply
Highlighted
L3 Networker

Decryption policy and SNI

Hi,

I activated a decyption policy but my site is configured with SNI. If I apply the policy, the other site with the same IP is blocked with error SSL_ERROR_NO_CYPEHR_OVERLAP (this in Firefox). Which is the correct configuration with SNI?

Tags (2)
Highlighted
Cyber Elite

@s_quasar,

In the Firefox configuration can you look for 'security.tls.version.fallback-limit' and set the value to 0 and see if you can access the site after that?

Highlighted
L3 Networker

Now I've stopped the rule so I can't do this test but I think this is not a solution because I can't open the firefox configuration of all people to make this change.

Highlighted
Cyber Elite

@s_quasar,

It's a simple test to see if my theory of what is happening is actually correct, it's not the solution that you would actually employ. 

Highlighted
L3 Networker

I've made the change but the problem is the same: SSL_ERROR_NO_CYPHER_OVERLAP. The error in chrome is ERR_SSL_VERSION_OR_CIPHER_MISMATCH.

Highlighted
L3 Networker

Is there someone that can help me?

Highlighted
L1 Bithead

Hello, @s_quasar 

 

if your problem is still actual - try to check this thread:

https://live.paloaltonetworks.com/t5/General-Topics/Decrypt-error-with-Inbound-Decryption-DHE-or-ECD...

 

Maybe your problem is related to it

Highlighted
L3 Networker

Hi,

my problem is yet here.

Thank you for your help but this is not my case. I have problem on decrypt only if I have a website that share the same IP (SNI).

Highlighted
L3 Networker

Is there anyone that works decrypt in the presence of SNI?

Can I have an example about decryption with SNI?

Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the Live Community as a whole!

The Live Community thanks you for your participation!