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Ethernet to IP (10 points)

File(s): lookup.pcap [1 KB]

Question:

What is the Internet Protocol address of the host at 00:50:56:ed:c2:e2 in the attached packet capture file?

Free hint 1: The IP address is a sequence of four numbers between 0 and 255 separated by periods.

Free hint 2: Use Wireshark for this. It is available for download at https://www.wireshark.org/#download. If you have a Virginia Cyber Range exercise area account, you can use Wireshark on your Kali Linux virtual machine.

Answer:

192.168.28.2

Solution:

We can open the packet capture in Wireshark to see that it contains two packets:

pcap.png

To find the IP address corresponding to our given MAC address of 00:50:56:ed:c2:e2, we can do a simple search of the packet details by pressing CTRL-F and entering our search term:

packet.png

I've circled our source MAC address and the corresponding source IP address in the same packet. This indicates that our flag is the IP address 192.168.28.2.

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