What is the valid command in Linux to find DHCP packets?

In Linux, you can use the tcpdump command to find DHCP packets. tcpdump is a network packet capture tool that can be used to intercept and analyze network data packets. The following is a specific code example:

sudo tcpdump -i <network_interface> port 67 or port 68 -vv

Among them, <network_interface></network_interface> is what you want to monitor The network interface of the current system can be viewed through the ifconfig command. port 67 and port 68 represent the port numbers of the DHCP server and DHCP client respectively.

After running the above command, you will see all DHCP packet data passing through the network interface. Further analysis and debugging can be done as needed.

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