[lwip-users] Successful bind for wrong IP address!

[Amena El Homsi]

Hi,

We have one network interface assigned an IP address through DHCP.

We create a udp (or tcp) socket. When we try to bind the socket to wrong IP address (different than the one assigned to our network interface), udp_bind() returns ERR_OK.

I think we should report an error instead of ERR_OK.

If we use netcat to open a socket on linux using wrong IP address, binding fails as mentioned in the attached picture.

--

Amena El-Homsi

Computer & Communication Engineer

Dipl. Eng,  M.S.

Screenshot from 2020-05-20 17-15-49.png
Description: PNG image