[lwip-users] "netconn_bind" broken for UDP connections in LwIP 1.4.0?

[Marco Jakobs]

Hi,

i have some UDP transmissions where i need to definitely set the source 
port (my transmission port) to a given value!

I did this always with:

            dvtxcon=netconn_new(NETCONN_UDP);    // New connection
            modsrv_addr.addr=htonl(msgqueue[msgq1-1].adr);        // 
Prepare target IP address
            
netconn_connect(dvtxcon,&modsrv_addr,msgqueue[msgq1-1].port);    // Open 
Connection
            netconn_bind( dvtxcon, NULL, kreg[602] ); // Set source 
port to configured value

After upgrading to LwIP 1.4.0, i saw some connections not working, and 
my wireshark showed me that the source port setting is not working 
anymore! :-(
The connections are sourcing from port 49152 instead of the configured 
port 3141.

Is this a bug, or did some interfacing change in LwIP 1.4.0? How can i 
set the source port of the connection?

Thanks,
Marco