Hello, I'm using lwIP in FreeRTOS on a STM32F1xx processor.
I was using lwIP v1.4.0, but now I want to use IPV6, so I migrated to git master head source code. This latest version of lwIP is working good with IPV4, but not with IPV6. I've added #define LWIP_IPV6 1 #define LWIP_IPV6_MLD 1 #define LWIP_IPV6_DHCP6 1 #define LWIP_ICMP6 1 #define LWIP_IPV6_AUTOCONFIG 1 in my lwipopts.h I'm calling "netif_create_ip6_linklocal_address(ðIface,1)" after "netif_set_up(ðIface)" Then I display all the IPV6 addresses (ethIface.ip6_addr[0 to max]) I can see that first one is the link local, and its status goes from TENTATIVE to PREFERED. I ping this link-local address using ping6 on my computer but the device is not responding. (NB ping6 is working OK, I've tested it with another computer connected to the same network interface). I put a breakpoint in the ETHTYPE_IPV6 case, just after the low_level_input() inside ethernetif_input(). But I never get the break (break on ETHTYPE_IP or ETHTYPE_ARP is working) With Wireshark I can see that the computer is sending the ICMPv6 requests, but the MAC destination is a type "IPv6mcast" whereas when I ping6 another computer in MAC destination field I got its MAC address... Did I miss something in the lwIP migration? Or is it a problem of setting up the interface? Thanks a lot for your great work, Best regards, Yvan.
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