Steps to decode SNMPv3 traffic in Wireshark
If you take a look on properly encrypted SNMPv3 traffic it looks like this:
Now you just click on “Edit | Preferences":
Search for “Protocols | SNMP” and click on “User Table | Edit”:
Click onto the “New” button:
Now enter your user name, select the authentication and encryption method and provide the 2 passwords. You don’t need to provide the Engine ID normally:
After clicking onto Ok multiple times the traffic looks like this:
