In order to inspect UDP traffic, you must open the Packet Capture in Wireshark, find the traffic you’d like to inspect, right click and hit “Follow UDP Stream”.Ī new window will be displayed to you showing the data contained within the UDP stream.īeautiful, now we can see that over TFTP the contents of “show run” from a Cisco device was transmitted.
Alternatively, if there is noise on the wire, it will be shown As seen here: TFTP runs over UDP port 69, which means that if a packet is sent and it does not reach the end device, it will not be re-transmitted. TFTP is a protocol that is used to transfer files from one device to another in a non-secure, connectionless fashion. Today we’re going to take a look at how to interpret TFTP and TACACS+ traffic and decode the contents of TACACS+ encrypted packet. Being able to intepret traffic in Wireshark is an incredibly important part in being a Cyber Security Analyst.
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