Thank you for addressing that issue, Hein! I’ll keep watching the PR.
I did not encounter issue #183 myself, but I need to maintain a list of all possible errata for a project, so I’m following up on all the issues.
How about this issue #180 FreeRTOS-TCP arp reply length incorrect from sourceforge, ? It appears someone has written a patch, but I’m not able to test this fix at this time: I can see in the 2021112.00 release that it has not been patched yet, but the good news is it is only a one line change.