Tcpdump: Difference between revisions
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{{DISPLAYTITLE:tcpdump}} |
{{DISPLAYTITLE:tcpdump}} |
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'''tcpdump''' <ref>[[wikipedia:Tcpdump]]</ref> is a packet analyzer <ref>[[wikipedia:Packet_analyzer]]</ref> which is able to intercept and log |
'''tcpdump''' <ref>[[wikipedia:Tcpdump]]</ref> is a packet analyzer <ref>[[wikipedia:Packet_analyzer]]</ref> which is able to intercept and log network traffic. |
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== Background == |
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Packet analyzers are particularly helpfull in detecting networking issues, e.g. to check if network traffic is send or received by a device. |
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== Example == |
== Example == |
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In a terminal window type: |
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tcpdump -i lo udp port 6454 -vv -X |
sudo tcpdump -i lo udp port 6454 -vv -X |
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The resulting output will show UDP datagrams which are captured on the loopback interface on port 6454 (Art-Net). |
The resulting output will show UDP datagrams which are captured on the loopback interface on port 6454 (Art-Net). |
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== References == |
== References == |
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Latest revision as of 11:05, 16 April 2021
tcpdump [1] is a packet analyzer [2] which is able to intercept and log network traffic.
Background
Packet analyzers are particularly helpfull in detecting networking issues, e.g. to check if network traffic is send or received by a device.
Example
In a terminal window type:
sudo tcpdump -i lo udp port 6454 -vv -X
The resulting output will show UDP datagrams which are captured on the loopback interface on port 6454 (Art-Net).