IPng: IPv6 History
“IPng” consisted of three prior proposals:
- CATNIP (Common Architecture for Next Generation Internet Protocol): Created commonality between the Internet (IPv4, TCP, UDP), OSI (CLNP, TP4, CLTP), and Novell Protocols (IPX, SPX)
- TUBA (TCP and UDP with Bigger Addresses): Replaces existing IPv4 network layer with ISO’s CNLP (more address space & allow TCP/UDP to operate unchanged) and works with IDRP, IS-IS, and ES-IS.
- SIPP (Simple Internet Protocol Plus): Removed IPv4 functions that did not work, revised the header for more efficient processing, and increased the address space from 32 to 64 bits (only to be later revised to 128bits)