[Savannah-users] Connection problems within VM

[Siebren Vroegindeweij]

Hello
everyone,

 

I am
using lwIP(version 1.4.1) in a to Windows ported FreeRTOS(version 8.1.2) which
runs on a Windows 8.1 virtual machine. The virtual machine uses NAT to get an
IP address. 

The
application that I have made in this environment is a rather simple webserver
which uses the raw lwIP API.

 

When I
am on the host computer I am capable of reaching the webserver by using a web
browser and typing in the IP address that I have given the network interface of
my application (as long as it is in the same range as the IP address of the 
virtual
machine). So far no problem and the application does what I expect it to do.

 

However
when I try to access the webserver on the virtual machine itself it does not
work.

By using
Wireshark I have seen that a request is send from the web browser in the
virtual machine to the application, but it won’t get any response. lwIP also
does not perform a callback to the function that I have set using tcp_accept().

Does
anyone know by what this is caused and/or how to fix this?

 

As
reference I have tried to compare it to a demo project that I found on the
internet:

 

http://interactive.freertos.org/entries/20290712-FreeRTOS-Win32-project-with-lwIP-web-server

 

Unfortunately
from my setup it is not possible to access the application running in this 
project
from within the virtual machine as well as from the host. Which leaves me with
not much help.

 

I am
rather new to lwIP and this mailing list, so please have patience with me.

If you
are missing information, please let me know.

 

Any help
would be much appreciated.

 

Yours
Faithfully,

 

Siebren