Steve's quick list of things that need finishing off: [they are in no particular order and range from the trivial to the long winded] o Proper timeouts on each neighbour (in routing mode) rather than just the 60 second On-Ethernet cache value. o Support for X.25 linklayer o Support for DDCMP link layer o The DDCMP device itself o PPP support (rfc1762) o Lots of testing with real applications o Verify errors etc. against POSIX 1003.1g (draft) o Using send/recvmsg() to get at connect/disconnect data (POSIX 1003.1g) [maybe this should be done at socket level... the control data in the send/recvmsg() calls should simply be a vector of set/getsockopt() calls] o check MSG_CTRUNC is set where it should be. o Find all the commonality between DECnet and IPv4 routing code and extract it into a small library of routines. [probably a project for 2.7.xx] o Add perfect socket hashing - an idea suggested by Paul Koning. Currently we have a half-way house scheme which seems to work reasonably well, but the full scheme is still worth implementing, its not not top of my list right now. o Add session control message flow control o Add NSP message flow control o DECnet sendpages() function o AIO for DECnet