Thank you for the hint, I was on Version:
Now I updated to the current
2021.04-devel-443-gd6e43 and it works.
lwip_sock_async was not necessary and seemed not to change anything.
But I had to remove these modules which usually are included in the
USEMODULE += gnrc_netdev_default
USEMODULE += auto_init_gnrc_netif
USEMODULE += gnrc_ipv6_default\
since there was a very similar error to the one mentioned above, but with other suggested types.
ifconfig command is not available anymore, which is adverse for getting the IPv6 address of the
Nevertheless I was able to get a response via
lwIP test provides an
ifconfig command as well, but that one is not available although I added all the modules from the
Makefile to my
gcoap example. I don’t know why that’s the case.
Unfortunately there occurred another problem:
In function ‘_parse_endpoint’:
…/gcoap_cli.c:235: undefined reference to ‘gnrc_netif_numof’
…/gcoap_cli.c:237: undefined reference to ‘gnrc_netif_iter’
…/gcoap_cli.c:245: undefined reference to ‘gnrc_netif_get_by_pid’
I simply disabled the
gcoap_cli in my code, since I do not necessarily need it for my stuff and as I said, the
CoAP server was running well without it.
Anyway, shall I open a new topic for this problem?