I have a CenturyLink C3000Z modem bridged to an Orbi router. In the modem, I set the IPv4 firewall as medium and unchecked all the Xbox settings as well as anything gaming as we don't have or use an Xbox. The system log in the CL configuration fills up with entries like the following, multiple times a minute. MAC address is the MAC address for the modem as well as the SRC IP.

    02/05/2024 04:08:11 AM Firewall 
    Firewall DROP XBox:IN=br0 OUT=ppp0.1
    MAC= 
    SRC=192.168.0.3 DST=1.0.0.1 LEN=64 TOS=0x00
    PREC=0x00 TTL=62 ID=0 DF PROTO=TCP
    SPT=53009 DPT=53 WINDOW=65535 RES=0x00 SYN
    URGP=0

Sometimes the DST is: DST=205.171.3.25
WINDOW is sometimes shown as 29200
ID and SPT change with each entry.

Can anyone explain why are these appearing?