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[lwip-devel] [bug #26062] FIN_WAIT_2 state following tcp_close should ti

From: Jeff Barber
Subject: [lwip-devel] [bug #26062] FIN_WAIT_2 state following tcp_close should timeout eventually
Date: Fri, 03 Apr 2009 13:48:17 +0000
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/2009032609 Firefox/3.0.8

Follow-up Comment #2, bug #26062 (project lwip):

True but there's only a single timer ("tmr") in the pcb and it gets updated
for each segment received.  So if the remote end continues to send data after
we sent the FIN -- which is perfectly okay for it to do -- the session never
times out.

Since the intent of tcp_close is to permanently disconnect (as opposed to
"shutdown" semantics), then we should eventually force a connection close. 
Otherwise, resources on both sides could remain allocated indefinitely.


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