Strange packet blocking



  • There are strange records in my System Logs: Firewall

    The 82.x.x.x address is my WAN interface (Cable modem DHCP)
    The 172.16.0.2 is my second WAN interface (Connected to a DSL router)

    Why is my firewall (from the WAN interface) sending packets to the WANDSL interface, everytime the same UDP ports.

    This isn't happend before.

    Apr 30 23:08:24 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:24 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:22 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:22 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:20 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:20 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:19 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:17 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:15 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:13 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:13 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:11 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:11 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:09 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:09 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:08:08 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:06 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:04 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:01 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:08:01 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:07:59 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:07:59 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP
    Apr 30 23:07:57 WANDSL 82.x.x.x:44751 172.16.0.2:31673 UDP
    Apr 30 23:07:57 WANDSL 82.x.x.x:43089 172.16.0.2:39704 UDP


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