Summary
Packet capture can be used to troubleshoot network problems such as finding missing or lost traffic/packets, locating ARP problems, and confirming which address a computer is using on the network.
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To perform a packet capture on a FortiGate unit, access the packet capture page from the GUI interface and create a new filter.
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If the FortiGate unit has NP2/NP4 interfaces that are offloading traffic, it is necessary to disable offloading on those interfaces before performing a trace.
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The PCAP file can then be downloaded.
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To use packet capture through the GUI, your FortiGate model must have internal storage and disk logging must be enabled. If you are not sure whether your model ...
Packet capture | FortiGate / FortiOS 5.6.0
fortinet.com
Summary
This article provides a step-by-step guide to using the built-in packet capture feature in FortiOS from the GUI interface. It explains how to access the packet capture page, create a new filter, and download the PCAP file. Packet capture can be used to troubleshoot problems such as finding missing or lost traffic/packets, locating ARP problems, and confirming which address a computer is using on the network.
Troubleshooting Tip: Packet Capture on FortiOS GUI - Fortinet Community
fortinet.com
Summary
Packet sniffing can also be called a network tap, packet capture, or logic analyzing.
If your FortiGate unit has NP2/NP4 interfaces that are offloading traffic, this will change the sniffer trace. Before performing a trace on any NP2/NP4 interfaces, you should disable offloading on those interfaces.
How to perform a sniffer trace (CLI and Packet Capture) – Fortinet GURU
fortinetguru.com
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Packet capture
fortinet.com
