Lwip TCP Client disconnect detection. I am unable to detect if my client is disconnected from server. if my server sends the close command then i am able to detect but problem arises when the server stops abruptly or power goes down.

MCU is STM32F207VIT6 (client)

server is windows application.

LWIP library is used.

Is there any ping command?

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Principal III

Ping:

Yes, there is, and it's "processed" in icmp.c as ICMP_ECHO .

So you must have LWIP_ICMP defined to enable ping, in opt.h .

NMALHAuthor

Associate II

already set to 1. Will you please elaborate more.

Principal III

Parameters

p The received data (or NULL when the connection has been closed!)

Either that or this:

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