Which of the following protocols could the below packet capture be from? Port: 161 msgVersion: msgUsername: msgAuthenticationParameters: msgPrivacyParameters: msgData: data: get-request request-iD. error-status: noError (0) error-index: 0 variable-bindings: 0 items

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N10-005 · Question #872

Which of the following protocols could the below packet capture be from? Port: 161 msgVersion: <masked> msgUsername: <masked> msgAuthenticationParameters: <masked> msgPrivacyParameters: <masked>…

The correct answer is A. SNMPv3. The packet capture reveals port 161 (the standard SNMP port) along with fields like msgUsername, msgAuthenticationParameters, and msgPrivacyParameters - these security fields are exclusive to SNMPv3, which introduced user-based authentication and privacy (encryption). SNMPv1…

Network operations

Question

Which of the following protocols could the below packet capture be from? Port: 161 msgVersion: <masked> msgUsername: <masked> msgAuthenticationParameters: <masked> msgPrivacyParameters: <masked> msgData:

data: get-request request-iD. <masked> error-status: noError (0) error-index: 0 variable-bindings: 0 items

Options

ASNMPv3
BSSH
CHTTP
DSNMPv1

How the community answered

(41 responses)

A
71% (29)
B
7% (3)
C
20% (8)
D
2% (1)

Explanation

The packet capture reveals port 161 (the standard SNMP port) along with fields like msgUsername, msgAuthenticationParameters, and msgPrivacyParameters - these security fields are exclusive to SNMPv3, which introduced user-based authentication and privacy (encryption). SNMPv1 uses port 161 but has no authentication or privacy fields; it uses a simple community string. SSH uses port 22 and HTTP uses port 80/443, and neither uses SNMP message structures.

Topics

#SNMPv3#packet analysis#SNMP authentication#network monitoring

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