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Re: [lwip-users] Changing Port number at run time
From: |
Simon Goldschmidt |
Subject: |
Re: [lwip-users] Changing Port number at run time |
Date: |
Tue, 2 Oct 2012 16:19:18 +0200 |
Sanchayan wrote:
> I have got a connection running in listening mode on a particular port. For
> giving Dynamic DNS provision, i need to change the port number of my
> listening connection at run time. I tried tcp_bind, but, it returns
> "ERR_ISCONN -13 Already connected".
You can't change the port of a listening pcb once it's open. Instead, close the
pcb and create a new pcb on the port you need.
> I tried to see in lwiplib.c file, if there is a function like
> lwIPNetworkConfigChange(), which will help me change the port number for a
> particular connection.
I don't know that file, which suggests it is not part of lwIP itself but rather
part of a specific lwIP port.
Simon