Just as an update if anyone cares, I decided to go with "Understanding Linux Network Internals". It doesn't cover TCP or IPv6, but it looks like the perfect lev

Just as an update if anyone cares, I decided to go with "Understanding Linux Network Internals". It doesn't cover TCP or IPv6, but it looks like the perfect level of depth that I'm looking for, so hopefully what I learn from this book will help me figure out the rest of the TCP part by myself. The Linux Networking Architecture: Design and Implementation of Network Protocols in the Linux Kernel looked perfect, but it doesn't cover 2.6 kernels, only 2.2-2.4. Although it did cover more network protocols, I'm more interested in the current kernel than in a wide range of details.