DHCP request from a host to a DHCP server with the host having the same MAC address as that of the server
Hi guys,
please, I need help here.
I am going through a network capture file and I saw a DHCP interaction that I really don't understand and need someone to help explain it to me.
the DHCP server had its IP address and MAC address from the beginning of the package none of which was shared by another device on the network but in this interaction, a host sent about 5 un-replied DHCP requests to the DHCP server and what I noticed is that while the DHCP server's IP address is what has always been, the MAC address is now the same with that of the client sending the DHCP request. in order words, the DHCP server and host requesting for IP address have their IP addresses but both share the same MAC address which is the original MAC address of the client sending the DHCP request But other DHCP requests from other hosts in the network to the DHCP server has correct MAC address of the DHCP server and there are getting response from the DHCP server.
I am very confused here and don't know what to make of it. Someone should please explain this to me
Can you remove any sensitive information and upload a capture?
I do not have enough points to upload a file, I have edited the original post and added a link to th file in my google drive so you can download and check it out, thanks
Interesting tracefile, can you tell me how it was made? It seems to have been made in a (virtual?) test environment at the CSC department of DMU. However, some things do not make sense as there are no frames with ethernet padding while the frames of several hosts are too small to be captured on the network itself. If you can tell what kind of simulation software was run and how the captures were made within that environment, that would be interesting.
Sorry, I am responding to this late. from the date in the captured packets, this file was captured since 2015 and I sincerely don't know who did the capture, I was just given the file to analyze so it will be difficult for me to say how it was captured.
No problem, there is tons of interesting stuff in it. I might be using it in future classes of mine too!