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    strange internal ipv6 addresses in LAN network

    Firewalling
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    • S
      Saggittarius last edited by

      Hi all,

      I had a look at the firewall logs and seeing a lot of entries like these ones? What are these ipv6 addresses?

      Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:5353 [ff02::fb]:5353 UDP
      Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:52005 [ff02::1:3]:5355 UDP
      Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:5353 [ff02::fb]:5353 UDP
      Feb 2 10:55:47 LAN Default deny rule IPv6 (1000000105) [fe80::aa23:feff:fed2:b70e]:5353 [ff02::fb]:5353 UDP

      Thanks for your help.

      Regards

      JKnott NogBadTheBad 2 Replies Last reply Reply Quote 0
      • JKnott
        JKnott @Saggittarius last edited by

        @saggittarius

        Those are link local addresses. Every IPv6 capable device has them. Those starting with ff02 are multicast addresses, but those would be destinations, not sources. The link local addresses are often, but not always derived from the MAC address.

        1 Reply Last reply Reply Quote 0
        • NogBadTheBad
          NogBadTheBad Galactic Empire @Saggittarius last edited by

          @saggittarius said in strange internal ipv6 addresses in LAN network:

          Hi all,

          I had a look at the firewall logs and seeing a lot of entries like these ones? What are these ipv6 addresses?

          Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:5353 [ff02::fb]:5353 UDP
          Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:52005 [ff02::1:3]:5355 UDP
          Feb 2 10:55:48 LAN Default deny rule IPv6 (1000000105) [fe80::d1b6:7c0f:e7ae:9df8]:5353 [ff02::fb]:5353 UDP
          Feb 2 10:55:47 LAN Default deny rule IPv6 (1000000105) [fe80::aa23:feff:fed2:b70e]:5353 [ff02::fb]:5353 UDP

          Thanks for your help.

          Regards

          IPv6 Multicast Link-Local Multicast Name Resolution for the 5355 entries and Multicast DNS for the 5353 entries.

          1 Reply Last reply Reply Quote 0
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