Links
Networking
- Network Sorcery
- Wireshark Documentation
- RFCs
- List of assigned Class A IP Address Blocks
- Printable Quick Reference Guide (IP, ARP, ICMP header formats)
- Future of the Internet (IPv6, etc...)
Network Programming (Sockets)
- Beej's Guide to Network Programming: Using Internet Sockets
- Programming UNIX Sockets in C - Frequently Asked Questions