Some other links I just think of (from my huge bookmark mainly: http://clapcrest.free.fr/revol/bookmark.htm ) : RFCs (there are many places where to find them): http://www.cis.ohio-state.edu/Services/rfc/index.html IETF: http://www.ietf.org/ Some basic tcp/ip implementations for reference: Tiny TCP (minimal PD TCP/IP stack): http://www.csonline.net/bpaddock/tinytcp/default.htm XINU: http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/xinu/ http://www.ugrad.cs.ubc.ca/spider/xinu/xinu.sun3/xref/Xinu-7.0.html http://www.ugrad.cs.ubc.ca/spider/xinu/xinu.sun3/xref/macros.html http://unixpc.taronga.com/xinu7300/ See you, François.
