What is a key difference between the data captured by NetFlow and data captured by Wireshark?NetFlow data shows network flow contents whereas Wireshark data shows network flow statistics.NetFlow provides transaction data whereas Wireshark provides session data.NetFlow data is analyzed by tcpdump whereas Wireshark data is analyzed by nfdump .NetFlow collects metadata from a network flow whereas Wireshark captures full data packets.Navigation Bar

NetFlow and Wireshark are both tools used for network monitoring, but they capture different types of data.

1. NetFlow Data: NetFlow is a protocol developed by Cisco for collecting and monitoring network traffic flow data generated by routers and switches. It provides metadata about network traffic, including source IP address, destination IP address, source port, destination port, and the number of packets and bytes in each flow. This data is useful for understanding the overall traffic patterns and behavior on a network. However, NetFlow does not capture the actual content of the data packets, so it cannot provide detailed information about what information is being sent or received.

2. Wireshark Data: Wireshark, on the other hand, is a network protocol analyzer that captures the full data packets that are being transmitted over the network. This allows it to provide detailed information about the actual content of the network traffic, including the data being sent and received, the protocols being used, and any errors or issues with the transmission. However, because it captures so much data, Wireshark can be more resource-intensive to use and may not be suitable for monitoring large networks.

In summary, the key difference between the data captured by NetFlow and Wireshark is that NetFlow collects metadata about network traffic flows, while Wireshark captures the full data packets being transmitted.