[lwip-users] Listen/Accept lwip 2.0.0

[Marcelo V]

Hello,

I am implementing a small web-server using lwip 2.0.0 and it seems that the TCP 
stack is accepting more connections than set by my listen call.
In my use-case I have an webpage with HTML requesting many external resources 
to be loaded. However, I want to only serve max of 4 requests simultaneously (4 
sessions) and “keep-alive” is disable (replies 200 OK with "connection: close”).

However, as soon as my code replies the very first accepted connection then I 
see my web browser issuing 8~10 GET’s even before I call accept again. 
Wireshark shows those 8~10 connections each with their port number and the 
entire GET had flown to the server.

It seems that the number of connections provided by the listen were ignored and 
TCP is accepting and buffering all requests.

I browsed the bug track and I did not find anything being reported.

How can I prevent this?

Thanks in advance,
Marcelo