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    • CommentAuthorprodigysys
    • CommentTimeJan 26th 2011
     permalink
    I get a return ip of Pinging comcast.net [207.223.8.131] with 32 bytes of data. If I do nslookup I get all their dns server. But cannot get to their website from browser nor send a email to a comcast user.
    Thank you
    • CommentAuthorRed Prince
    • CommentTimeJan 26th 2011
     permalink
    What does that have to do with OpenDNS?
    • CommentAuthorrotblitz
    • CommentTimeJan 26th 2011
     permalink
    "I get a return ip of Pinging comcast.net [207.223.8.131] with 32 bytes of data."

    Lucky guy! For me the Comcast servers don't respond for ping which is pretty normal nowadays to prevent from DDoS attacks.

    "If I do nslookup I get all their dns server."

    Their DNS servers? What was the exact nslookup command? Do you mean their autoritative nameservers?

    nslookup -type=ns comcast.net.
    Server: localhost
    Address: 127.0.0.1

    Nicht autorisierte Antwort:
    comcast.net nameserver = dns103.comcast.net
    comcast.net nameserver = dns104.comcast.net
    comcast.net nameserver = dns105.comcast.net
    comcast.net nameserver = dns102.comcast.net
    comcast.net nameserver = dns101.comcast.net

    dns103.comcast.net internet address = 68.87.76.228
    dns104.comcast.net internet address = 68.87.68.244
    dns105.comcast.net internet address = 68.87.72.244
    dns102.comcast.net internet address = 68.87.85.132
    dns101.comcast.net internet address = 68.87.29.164
    dns102.comcast.net AAAA IPv6 address = 2001:558:1004:7:68:87:85:132

    "But cannot get to their website from browser nor send a email to a comcast user."

    Too bad! I can. Any error message or symptom indicating this being related to OpenDNS?
    • CommentAuthorprodigysys
    • CommentTimeJan 26th 2011
     permalink
    so how come when I opendns I cannot get to it, and without opendns I can.
    • CommentAuthorrotblitz
    • CommentTimeJan 26th 2011
     permalink
    You forgot to answer the main point. Again: "Any error message or symptom indicating this being related to OpenDNS?"
  1.  permalink
    Do you mean the site isn't resolving, or you just can't ping it? There's a rather large difference between the two things - if the site isn't resolving for you, we'd sure like to investigate.
    • CommentAuthorrotblitz
    • CommentTimeJan 26th 2011
     permalink
    OpenDNS delivers exactly the same result as the authoritative nameservers of Comcast.

    nslookup comcast.net. 68.87.29.164
    Server: dns101.comcast.net
    Address: 68.87.29.164

    Name: comcast.net
    Addresses: 207.223.8.132, 207.223.8.131, 76.96.38.12, 76.96.38.13

    nslookup comcast.net. 208.67.222.222
    Server: resolver1.opendns.com
    Address: 208.67.222.222

    Nicht autorisierte Antwort:
    Name: comcast.net
    Addresses: 207.223.8.132, 207.223.8.131, 76.96.38.12, 76.96.38.13

    Perfect!
  2.  permalink
    Comcast.net seems to be resolving normally http://www.opendns.com/support/cache/

This discussion has been inactive for longer than 30 days, and is thus closed.