This is our old Q&A Site. Please post any new questions and answers at

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
accept rate: 0%

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

permanent link

answered 18 Jun '15, 13:36

Pascal%20Quantin's gravatar image

Pascal Quantin
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
Your answer
toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here



Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:


question asked: 18 Jun '15, 13:11

question was seen: 1,896 times

last updated: 19 Jun '15, 02:50

p​o​w​e​r​e​d by O​S​Q​A