October 2001
Beginner
1024 pages
25h 8m
English
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How DHCP Works
A detailed discussion of how DHCP works is beyond the scope of this book, but here is a basic rundown of what happens.
In FreeBSD, there is a client program called dhclient that allows FreeBSD to act as a DHCP client. When a system configured to use DHCP boots and dhclient starts, it will send out broadcast requests on port 68. These requests are sent in UDP format.
If there is a DHCP server on the network, it will be listening to port 68 for these requests. When it receives a request for configuration information, it will check its database for a free IP address that can be assigned to the client. It will then send back all of the configuration information that the client requests on port 67, once again using UDP. The IP address ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.