Decrypting SNMPv3 packets while using Wireshark - encryptedPDU: privKey UnknownIssue While capturing SNMP packets in Wireshark you might not be able to see any information in the "info" section of each captured packet because it is encrypted while using SNMPv3 credentials. Instead, you will see: "encryptedPDU: privkey Unknown" You can add your SNMPv3 credentials to Wireshark's Preferences to decrypt the packets and show the information in the info section. Procedure Go to Edit > Preferences > ProtocolsSelect SNMP from the protocol listEdit the user table settings:Click on the "Add" button and enter the following details: Engine IDSNMPv3 usernameChoose the authentication model (MD5 | SHA1)Enter the password for the authentication modelChoose the privacy protocol (DES | AES | AES192 | AES256)Enter the privacy password Open a capture to see the decrypted info