The second extra credit assignment, which is much more challenging than
the first, is to implement your own DHCP client using UDP sockets and IP
broadcast.  The hardest part of the assignment is to understand in precise
detail the DHCP requirements.  Here are some sites to help you:

www.networksorcery.com/enp/protocol/dhcp.htm
jhmcis.jhmi.edu/standards/dhcp/dhcp.htm
support.microsoft.com/kb/169289

You should test your program in an environment with a DHCP server present.
You should run ethereal to see what the packets look like precisely
between the DHCP server and a working DHCP client. (talk to me if you
are serious about doing this assignment).

Your DHCP client needs to work with ANY DHCP Server.
You can issue ip addr/ip route commands from your program to set up your
basic routing settings.

You can hard-code in your mac address into the program.


This assignment will take quite a bit of work, so don't try it unless you
are able to devote a significant number of hours of programming and testing.