For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

alex100's avatar
alex100
Icon for Cirrostratus rankCirrostratus
Mar 17, 2017

TLS Version and SSLDUMP

Hi all, I am trying to figure out if server behind Big-IP is capable of doing TLS 1.2 Supposedly it should. I have taken a tcpdump of target traffic as below: tcpdump -vvv -s 0 -nni 0.0 -w /...
application delivery
LTM
ssl-tls
nathe's avatar
nathe
Icon for Cirrocumulus rankCirrocumulus
Mar 17, 2017

alex100,

 

The TLS version can be retrieved from the Version line in client and server hellos. Version 3.3 means TLS 1.2. So looks like both client and server agreed upon TLS 1.2.

 

Version 3.0 is SSLv3, 3.1 is TLS1.0, 3.2 is TLS 1.1

 

Hope this helps,

 

N