UPD packets


  1. Posts : 14
    Windows 7
       #1

    UPD packets


    All, I am on Windows 7, HP PC.... cable modem..

    I keep getting messages on my Norton AV that read, "Inbound UDP Packet Allowed". I traced the ISP these packets are coming from... and it is my ISP.VIA port 53. I see that one of the ISPs, however, is in another state on the other side of the country, and its to another port. i believe 8085??

    Are these causes for alarm?
      My Computer


  2. Posts : 1,506
    W7 Ult. x64 | OS X
       #2

    Capture some of the packets, upload them and someone should know.

    Wireshark Go deep.
      My Computer


  3. Posts : 28,845
    Win 8 Release candidate 8400
       #3

    wyman said:
    All, I am on Windows 7, HP PC.... cable modem..

    I keep getting messages on my Norton AV that read, "Inbound UDP Packet Allowed". I traced the ISP these packets are coming from... and it is my ISP.VIA port 53. I see that one of the ISPs, however, is in another state on the other side of the country, and its to another port. i believe 8085??

    Are these causes for alarm?
    Probably not, UDP is not the most dangerous protocol. But if there are 2 ISP's one yours one not, the other one (and port ) should be blocked.


    Ken
      My Computer


  4. Posts : 14
    Windows 7
    Thread Starter
       #4

    zigzag3143 said:
    wyman said:
    All, I am on Windows 7, HP PC.... cable modem..

    I keep getting messages on my Norton AV that read, "Inbound UDP Packet Allowed". I traced the ISP these packets are coming from... and it is my ISP.VIA port 53. I see that one of the ISPs, however, is in another state on the other side of the country, and its to another port. i believe 8085??

    Are these causes for alarm?
    Probably not, UDP is not the most dangerous protocol. But if there are 2 ISP's one yours one not, the other one (and port ) should be blocked.


    Ken
    Thanks... I guess what I meant was that 1 of the ISPs is my actual ISP company, not me.
    Last edited by wyman; 19 Apr 2010 at 20:26.
      My Computer


  5. Posts : 14
    Windows 7
    Thread Starter
       #5

    I guess what Im wondering is...

    Why is my ISP company sending me UDP packets?
      My Computer


  6. Posts : 49
    Windows 7 Ultimate 32-bit
       #6

    For my opinion, UDP packet, User Datagram Protocol, usually, used to stream media, like playing videos. For your case, on port 53, mostly is from the Domain Name System, which is called DNS in short. well, correct me if i am wrong. If you would like to check for the exact IP and trace the source, go to cmd and type netstat -n to see what are your listening port and established ports, then this port is connecting from where. Hope that helps.
      My Computer


  7. Posts : 1,519
    El Capitan / Windows 10
       #7

    cashng said:
    For my opinion, UDP packet, User Datagram Protocol, usually, used to stream media, like playing videos. For your case, on port 53, mostly is from the Domain Name System, which is called DNS in short. well, correct me if i am wrong. If you would like to check for the exact IP and trace the source, go to cmd and type netstat -n to see what are your listening port and established ports, then this port is connecting from where. Hope that helps.
    This guy is correct. UDP is connectionless. You are requesting the packets whenever your computer tries to resolve a domain name to an IP address. Turn those Norton alerts off. They're bogus.
      My Computer


 

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