Everyone who downvoted my comment needs to pick up and read a copy of Comer's "Internetworking with TCP/IP". That and Stevens' TCP/IP Illustrated are the best s

Everyone who downvoted my comment needs to pick up and read a copy of Comer's "Internetworking with TCP/IP". That and Stevens' TCP/IP Illustrated are the best sources for networking out there. You won't find the info on any blog. It won't be in something on ServerFault or StackOverflow and definitely not HN. Buy, read, learn. Yes, I know the US publisher has messed with the pricing for current versions but you can find the previous ones used pretty cheap. Other than dropping the IPng chapter, I doubt much has changed.