I want to capture communication between others with tcpdump.

Asked 2 years ago, Updated 2 years ago, 129 views

This is a very basic question, but I appreciate your cooperation.

tcpdump is unable to communicate with other hosts.

For example,

host1:192.168.1.10
host2:192.168.1.20
host3:192.168.1.30

If this is the IP address, would it be possible for host1 to capture a ping from host2 to host3?

When you type "tcpdump host 192.168.2.10" or "tcpdump src host 192.168.2.10 and dst host 192.168.3.10", the host1 server does not respond at all but communicate to its host.

I heard that it works in promiscuous mode unless you specify an option, but do you misunderstand how it works in the first place?

linux tcpdump

2022-09-30 17:58

1 Answers

When connected by switching HUB, only basic communication party packets are passed through.
I wish I could connect everything with a stupid HUB.


2022-09-30 17:58

If you have any answers or tips


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