Readl TLS Traffic for troubleshoot

Hi

i need to capture traffic for a longer time.

 

I have one dedicated interface M11 only for the packet-trace.

Internaly on the M10 Interface i use TLS , Externaly to the Provider M00 UDP.

the SD terminates the traffic TLS and SRTP traffic.

This works fine.

But now i need to trouble shoot and on the on M11 Interface i am capturing the data and sending the to a server.The data on the core side M10 are encrypted.

 

How can i decrypt them with whireshark ?  and is it possible?

Wich server Certificate i need to import ?

 

thanks