Link to the 2nd Edition version of this book:

http://www.amazon.com/TCP-Illustrated-Protocols-Addison-Wesl...

(Didn't even realize it had been updated until I checked!)

BTW, if you decide you want the Kindle version, there's a $10 promo code. I'm not sure if you need to be signed up to Amazon Student for this, so YMMV:

http://www.amazon.com/gp/feature.html?ie=UTF8&docId=1000...

Worked for me, thanks!

+1 to this. No matter what you end up doing in your career, having a good idea about what's going on the wire is never wasted.