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ergotherego
New Member
February 22, 2017
Question

Anyone using ssl-mirror successfully?

  • February 22, 2017
  • 1 reply
  • 7941 views

I am trying to decrypt SSL traffic for analysis using the setting "ssl-mirror" under the policy. This is on a 60D running 5.4.4 and I am capturing traffic between internal1 and wan1, and mirroring it to internal7. Internal1 is in a virtual-switch.

 

It appears to be working, but Wireshark is not seeing the traffic. I disabled any local firewalls and ensured that interfaces are being put into promiscuous mode. Running 'diag packet sniffer' while HTTPS traffic hits the policy I do see the traffic on the console - and if I convert the output using fgt2eth.exe it is the traffic in question. And, the Tx counters on the interface are incrementing.

 

But for some weird reason Wireshark is not seeing it all.

 

Curious if anyone is using ssl-mirror and if they got it to work, and if there are any special considerations.

1 reply

ergotherego
New Member
February 22, 2017

FortiNet TAC got back to me. The ssl-mirror feature is currently broken. Their bug ID is 0408993 and they have confirmed that regardless of the machine used, it never actually receives the traffic.