Re: [lwip-users] lwIP 1.4.1 server's SYN flood hang, no backlog

[Simon Goldschmidt]

Tomek wrote:
> Editor suggests that at this moment TCP_LISTEN_BACKLOG is not defined, so I
> am as sure as I can.

Alright. That and the SYN/ACK/RST sequence you posted suggests that somewhere 
in your application, the connection is dropped. Maybe because of some kind of 
resource shortage. I'd try to debug in that direction if I were you.

Simon