Sergio can you suggest me such a switch with debugging port? Something you
have tried maybe?....

My intention wasn't to change the WAN, but essentially the router, thinking
it may block the traffic. I have followed the code extensively, I did tried
to place various brakepoints, and to turn on the debugging functionality of
LWIP, but it pointed me to nothing. Everything seemed absolutely normal. I
am sure LWIP delivers the packet to the low-level driver, which in turn
loads the data to the memory and starts the DMA engine of my MAC
controller, but I can't figure out what happens next. As I stated I see no
traffic, so I cannot be sure where the communication breaks.

Seems I need a debugging device.


*Fotis Panagiotopoulos*


*--*

*AMCO S.A.*

25 Amfiaraou st. PO 10442, Athens, Greece
Tel: +30 210 5907000 ext. -34 <%2B30%20210%205907000%20ext.%20-36> | Fax: +30
210 5912711
e-mail: [email protected] | web: http://www.amco.gr

On Mon, Jul 25, 2016 at 10:13 PM, Sergio R. Caprile <[email protected]>
wrote:

> 1: you need a hub or a switch with debugging/monitor port to see traffic
> from all ports. Connect your PC and your device to a hub or one of those
> switches (correctly configured) and you will see what happens in your
> network. If you need help, post a capture file.
> 2: trying different WANs does not make sense on lwIP. If you have a
> problem, try putting breakpoints and analyzing what you see. You should be
> able to follow the function calls and observe return codes. If you need
> help, post your piece of code and your result codes. you can also enable
> debug output and trace what lwIP does.
>
>
>
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> lwip-users mailing list
> [email protected]
> https://lists.nongnu.org/mailman/listinfo/lwip-users
>
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