Subject: Re: [En-Nut-Discussion] CLOSE-WAIT Status TCP sockets

[David Kanceruk]

Ralph, Harold,

      I looked at this problem once and concluded that the socket could 
be left in the CLOSE-WAIT state if the remote system sent a RESET 
instead of the usual FIN-ACK sequence to close the connection. (You 
might be surprised at how often some "big name" embedded systems use 
this technique.) I was thinking that a time-out may be needed to close 
it, but I did not look into the consequences for the application. Now 
that I think about again, it would be no different than the remote 
system initiating the CLOSE, so the effect should be the same, IMHO.

Dave