Unable to recognise DTLS packets

[Tulika Bose <tulika.bose () tcs com>]

Dear All,
   I have come across a problem with the display filter of dtls.The version I am using is 1.10.4.I have some DTLS 
packets,where DTLS is used over CoAP,and they have been captured in a .pcapng file. But when I filter the packets using 
the string 'dtls',no packets get displayed.On the other hand,when the filter string used is 'coap' or 'udp', packets 
get displayed,because DTLS is using the same port as coap which is 5683.But the problem is that the wireshark cannot 
recognise the DTLS header,it parses the same as the CoAP header,although these are actually dtls packets.It would be 
very kind of you,if you help  me with the issue.

Thanks & Regards
Tulika Bose
Follow me on KNOME: https://knome.ultimatix.net/u/tulika.bose
Tata Consultancy Services Limited
Cell:- +918820214176
Mailto: tulika.bose () tcs com
Website: http://www.tcs.com
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