tshark: command syntax for decrypting TLS traffic from 2 or more servers

Hi everyone,

I'm able to correctly decrypt the TLS traffic from one server by specifying the command option:

-o ssl.keys_list:192.168.10.1,1200,tpkt,"server-key1.pem"

Now I need to simultaneously decrypt also the communication with another server. I made a few tries, but I can't guess the correct syntax for doing this. Using:

-o ssl.keys_list:192.168.10.1,1200,tpkt,"server-key1.pem" -o ssl.keys_list:192.168.10.2,1200,tpkt,"server-key2.pem"

the second command option overwrite the first one, so I'm able to decrypt only the traffic from the second server.

Does anyone knows the right syntax?