I have been using nemesis for forging fake DHCP request packets on my Ubuntu machine. I get a "packet injected" message each time I inject it. However I was not able to analyze it on wireshark as my packet in not being shown there. Nor do I get any reply packets from server. I am using the correct payload extracted from valid DHCP requests. What might be the problem.
Okay with my first test, I used etherape GUI to show what types of packets were being sent when I replayed the injected packet. What I saw was the color code for "UDP UNKNOWN" which leads me to believe it is a possible issue with Nemesis itself. In wireshark, there was no response from my router as a result of replaying the packet.
Subsequent tests using specific filters in wireshark as well as tcpdump are still showing zero results after replaying injected packet. I read over the nemesis changelog and it seems it has had injection issues in the past.
May have to report this as a bug in Nemesis even though I am not sure if the tool is even being maintained any longer. hate to say it but I don't think I'll be able to figure this one out. And that sucks.