| Church of IP: Includes FAQs, tips, discussion board, tools, and recommended books. |
| Connected - The IP Protocol: Section 3 of "Connected: An Internet Encyclopedia" discusses datagrams and streams, subnetting, and the delivery model. |
| Foundations of the Internet Protocol: ACM Crossroads magazine article explains network protocol concepts, IP packets, and IP addressing. |
| Internet Protocol Flow Information eXport - IPFIX: Internet Drafts and RFCs from the Evaluation Process on the IETF-Research-Group. |
| IP Performance Metrics Charter: IP Performance Metrics (IPPM) Working Group at IETF. |
| IP Self Test: This 18-question online quiz tests your knowledge of the nuts and bolts of Internet Protocol. |
| IPMI - IP Multicast Initiative: Forum to accelerate adoption of the IP Multicast Initiative through education and marketing. |
| ipSwitchboard: Site tracks the IP address of computers on the Internet, particularly Web and FTP servers. |
| IPTV News.net: Offers information and news on the evolving technologies of internet protocol television including hardware, software, and services. |
| Museum of Broken Packets: Collection of broken, malformed, or peculiar packets found on the Internet, with theories as to how they came to be. |
| MyWanIP: Free utility detects one's current IP address from behind a router. |
| RFC 791 - Internet Protocol: Request For Comments 791 documents the fundamental workings of IP. |
| TDMoIP - TDM over IP: Application of Time Division Multiplexing technology in transporting voice and data over high-performance IP networks. |
| What Is My IP Address?: Free service automatically determines one's address on the Internet. |
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