Constant IPv6 "ping" from WAN to ff02::16



  • Hello,

    I installed pfsense for the first time a few days ago. Still learning my way around.

    I've checked the Firewall log a few times after install and all seemed normal. However, after running it for a day I start seeing a "flood" of IPv6 pings, every second, from WAN, with destination being ff02::16. The source address is link local: fe80::213:5fff:fe05:bde2.

    What is going on here? If this is OK, is there a way to not log these specific entries?

    Thanks a lot!
    Dmitri

    Sample of my log below:
    Act Time If Source Destination Proto
    block Jul 11 23:13:30 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:28 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:28 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:26 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:24 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:23 WAN fe80::213:5fff:fe05:bde2 ff02::d PIM
    block Jul 11 23:13:22 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:20 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:19 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:17 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:14 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:12 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:11 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:08 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:06 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:06 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:03 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:13:00 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:12:57 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:12:56 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:12:54 WAN fe80::213:5fff:fe05:bde2 ff02::16 ICMP6
    block Jul 11 23:12:53 WAN fe80::213:5fff:fe05:bde2 ff02::d PIM



  • Some more info.

    I enabled DHCP6 on my WAN side, then went to check the interface status. Turns out the IPv6 of fe80::213:5fff:fe05:bde2 is actually my Gateway IPv6.

    Should I allow this traffic to go through from my Gateway IPv6?

    Thanks!