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Protocol preference for DTLS

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Hi: I built wireshark 1.12.5 from source on my ubuntu Linux, trying to use the DTLS decryption function. From "Enabled Protocol" i can see DTLS is enabled, but in the protocol preference tab, i don't see "DTLS", and right click on a captured DTLS packet, the "protocol preference" menu is grayed out. The downloaded windows version 1.12.5 works fine though. Unfortunately i have to use Linux to capture packets. Any idea why i can't set DTLS protocol preferences?

Thanks lei

asked 18 Jun '15, 13:11

Lei%20Sun's gravatar image

Lei Sun
1●2●2●2
accept rate: 0%

One Answer:

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Ensure to install libgcrypt and libgnutls development packages and recompile Wireshark.

answered 18 Jun '15, 13:36

Pascal%20Quantin's gravatar image

Pascal Quantin
5.5k●10●60
accept rate: 30%

Thanks for your answer, i will try that. Meanwhile, How do I perform decrypt after capturing packet? my DTLS is pre-shared-key, and i put the psk in the protocol preference of the wireshark, but the packet still show as "encryped application data".

Thanks Lei

(18 Jun '15, 14:52) Lei Sun