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Thread: firewall blocking isp comms?

  1. #1
    jjmor97z55 Guest

    Default firewall blocking isp comms?

    Hello !

    I have comcast as internet service provider and i keep getting the following :

    FWIN,2009/10/22,02:01:22 -4:00 GMT,71.205.112.1:67,255.255.255.255:68,UDP
    FWIN,2009/10/22,02:02:00 -4:00 GMT,73.43.48.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,71.205.112.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,24.11.80.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,73.116.144.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,74.154.96.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,68.60.178.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,71.26.211.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,98.62.128.1:0,224.0.0.1:0,IGMP (type:17)
    FWIN,2009/10/22,02:02:00 -4:00 GMT,98.62.132.1:0,224.0.0.1:0,IGMP (type:17)

    The problem is non of the ips belong to me !

    They all belong to comcast. My question is how is my firewall blocking all
    these connections with out it being in the mix at all ?

    To me this would indicate that i do not have a connection at this time !

    What caught my attention is the firewall is blocking them so they must be
    on my cable internet line ?

    This just started Tuesday after comcast did some ' system upgrades ' .

    I have reported it to comcast but nothing has changed it is still happening , at different hours of the day.

    Anyone got any ideas on this , maybe a zonealarm person perhaps ?

    thanks for your time in advance

  2. #2
    jjmor97z55 Guest

    Default Re: firewall blocking isp comms?

    Ok Nobody has any ideas about this ?

    None at all ?

  3. #3
    eyesineyes Guest

    Default Re: firewall blocking isp comms?

    I just don't get it. What is wrong with ZA blocking all your incoming IGMP packets? Did you experiencing internet disconnection when all these happened? If not, why do you care so much about it. Since specifically designed IGMP packets can be used as DoS attack, which can possiblely cause your computer lose connetctions or even crash. So if the security level of your internet zone is high, ZA will block all IGMP in and out to protect you.

    But if this is not the case, you are experiencing losing connections when it happens. You many choose internet zone security -> custom -> check allow incoming IGMP and allow outgoing IGMP. Then, I think, you would be fine.

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