[lwip-devel] [bug #22020] tcp_bind() for listen connection fails when connection on this port is active

[Kieran Mansley]

Follow-up Comment #4, bug #22020 (project lwip):

For example:

http://www.unixguide.net/network/socketfaq/4.5.shtml

It's discussed in Steven's TCP/IP Illustrated too, which I think is what I
remember reading.  Basically SO_REUSEADDR is the flag that says "allow me to
re-use this address/port even though a connection that is using that
address/port is still in the TIME_WAIT state".  lwIP doesn't have an
SO_REUSEADDR flag or functionality in any of its APIs, and so always refuses.

I may have misunderstood the problem being described though.  If so, I
apologise!



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