Yugal Kishore Gupta wrote:
That’s true. You need a public
facing IP to do the scan.
Well, that's a pity then. I could try to somehow connect an lwIP
device to my cable line at home, though... How often do they allow
you to do the scan, anyway?
I can see that after scan I
have at least
6 pcb staying for forever in CLOSE_WAIT state even
there is no communication
and after that I can not access the web server as
there is no connection after
that. I can still ping my device successfully.
So this seems TCP- or httpd-related. What's strange to me is that
the httpd should kill old connections (active or inactive) when
running out of PCBs , but that would assume that http_state_alloc()
can return as least as much items as there are TCP PCBs (i.e. for
HTTPD_USE_MEM_POOL==1, MEMP_NUM_HTTPD_STATE >= MEMP_NUM_TCP_PCB;
for HTTPD_USE_MEM_POOL, the heap must provide enough bytes to the
httpd, i.e. MEMP_NUM_TCP_PCB * sizeof(struct http_state)).
Could you check again with these settings? If that succeeds, we
might have to kill the oldest HTTP connection when
http_state_alloc() fails (which would be a good idea, anyway).
Thanks for your help.
Simon
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