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IPv6 Errors in logs

Scheduled Pinned Locked Moved IPv6
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  • M
    mgittelman
    last edited by mgittelman Jun 21, 2019, 10:36 PM Jun 16, 2019, 5:41 AM

    I keep getting the following over and over again in my routing log:

    Jun 15 22:23:48 radvd 62177 our AdvPreferredLifetime on em0 for 2604:5500:c078:8000:: doesn't agree with fe80::768e:f8ff:fea6:6e01
    Jun 15 22:23:48 radvd 62177 our AdvValidLifetime on em0 for 2604:5500:c078:8000:: doesn't agree with fe80::768e:f8ff:fea6:6e01
    Jun 15 22:23:48 radvd 62177 our AdvOtherConfigFlag on em0 doesn't agree with fe80::768e:f8ff:fea6:6e01
    Jun 15 22:23:48 radvd 62177 our AdvManagedFlag on em0 doesn't agree with fe80::768e:f8ff:fea6:6e01

    em0 and associated ipv6 ranges are on my WAN interface.

    This has been happening for months now, but IPv6 seems to be working just fine.

    Using Track interface, with /56 prefix. Router mode is set to managed in case that's relevant.

    Any ideas, suggestions?

    N 1 Reply Last reply Jun 21, 2019, 10:28 PM Reply Quote 0
    • N
      Nevs @mgittelman
      last edited by Jun 21, 2019, 10:28 PM

      @mgittelman what is the device on your network with ip address fe80::768e:f8ff:fea6:6e01? Is it possibly also running radvd? I had this same error and found my wireless access point running DD-WRT had IPv6 enabled and was running radvd. Disabling radvd on the access point resolved the conflict.

      1 Reply Last reply Reply Quote 0
      • M
        mgittelman
        last edited by Jun 21, 2019, 10:34 PM

        Thanks, I thought about that, but the address in question is clearly listed as my WAN gateway:

        IPv6 Address
        2604:5500:c078:8000:xxx:xxxx:xxxx:xxxx
        Subnet mask IPv6
        64
        Gateway IPv6
        fe80::768e:f8ff:fea6:6e01

        The only other device I can think of that could possible run misc network services would be my Aruba AP whose IP doesn't match.

        I have no other router on my LAN.

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