Cannot resolve our ISP Web page. Please help

Discussion in 'DNS Server' started by vdz, May 2, 2008.

  1. vdz

    vdz Guest

    We just transfered to the new ISP, as soon as we have internet back, we no
    longer open our ISP home page. (www.myisp.com)
    What I have done is that
    I added primary and secondary IP provided by ISP to forwarder on DNS server.
    I did nslookup mysip.com it shows IP address of www.myisp.com

    our system
    1 x 2003 DNS server
    1 x DHCP

    Thanks in advance
     
    vdz, May 2, 2008
    #1
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  2. Read inline please.

    In
    Since nslookup resolves the name correctly, it would rule out it being your
    DNS problem. It could be your ISP's problem.

    Is the site pingable?
    Can you ping the name?
    Can you ping the site with a non-fragmented packet of 1472 bytes?
    Example:
    ping -f www.myisp.com -l 1472

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    Kevin D. Goodknecht Sr. [MVP], May 3, 2008
    #2
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  3. vdz

    vdz Guest

    Thank you Kevin

    I am not able to ping either www.myisp.com or its IP address inside my
    network.
    But I am able to ping www.myisp.com and its IP outside network (at home).

    I think my DNS cannot resolve our own ISP web page somehow either by its
    name or ip address. Please help

    thanks a lot
     
    vdz, May 3, 2008
    #3
  4. Read inline please.

    In
    The reason I asked you to ping www.myisp.com was not for testing name
    resolution, ping is the incorrect tool for DNS resolution. What is relevant
    is that you cannot ping the IP address, from your next statement below, ICMP
    is not disabled, so it could very well be routing.

    DNS does not need to resolve IP addresses.

    You said in your original post:
    "I did nslookup mysip.com it shows IP address of www.myisp.com"
    nslookup uses DNS (DNS only) and bypasses your DNS Client cache and host
    file. So if nslookup against your DNS resolves the name, it is not your DNS
    Use this to be for sure:
    nslookup www.myisp.com <IPAddressofYourDNS>

    Post the results (unedited) from your tests.



    --
    Best regards,
    Kevin D. Goodknecht Sr. [MVP]
    Hope This Helps

    ===================================
    When responding to posts, please "Reply to Group"
    via your newsreader so that others may learn and
    benefit from your issue, to respond directly to
    me remove the nospam. from my email address.
    ===================================
    http://www.lonestaramerica.com/
    http://support.wftx.us/
    http://message.wftx.us/
    ===================================
    Use Outlook Express?... Get OE_Quotefix:
    It will strip signature out and more
    http://home.in.tum.de/~jain/software/oe-quotefix/
    ===================================
    Keep a back up of your OE settings and folders
    with OEBackup:
    http://www.oehelp.com/OEBackup/Default.aspx
    ===================================
     
    Kevin D. Goodknecht Sr. [MVP], May 3, 2008
    #4
  5. vdz

    vdz Guest

    Thank you Kevin

    Outside network (home) I issued command tracert <ipaddress>
    I got only 2 hops and the rest is timed out
    Inside network I don't have any hops (all timed out)

    Thanks in advance
     
    vdz, May 3, 2008
    #5
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