I am creating a 6loble setup between a kw41z-frdm board running ipv6_node example application and a linux machine connected with another kw41z-frm board running ble_hci_app firmware.
My SDK version is 2.2.
On my linux machine, I am using 6lowpan modules and following steps as given in:
(Note that I am not using GL.inet as described in above presentation, but using own linux machine to connect directly to kw41z-frdm board).
The BLE link between two kw41z-frdm is established. Now from ipv6_node example's shell, I do a ping to linux's ipv6 link-local address. On wireshark at linux, I can see ICMPv6 echo requests coming. But all of them get discarded as the linux could not verify checksum in ICMPv6 packets. Linux 'netstat -s -6' shows icmpv6 discard statistics count increasing. Wireshark shows that checksum is bad.
(I tried another scenario where on one kw41z-frdm board, I run ipv6_router and on second ipv6_node.
After establishing the BLE link between them, ping does not work in this case too.)
PS: On mcuxpresso environment, I could not search 'C' code for function ICMP_ComputeTxChecksum6().
Only header file declaration could be searched.