windows firewall blocking ICS

Discussion in 'Windows 7 Networking' started by Ben Yermak, Jan 7, 2013.

  1. Ben Yermak

    Ben Yermak New Member

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    Hello

    I'm currently sharing my internet connection with another computer (both run windows 7). The other computer can only access the internet if the computer holding the dial up connection has windows firewall turned off. I tried to add an exception in windows firewall for port 80 but did not have any effect.

    The local area connection adapter on the computer that's holding the internet connection has the following settings:

    IPv4 Address: 192.168.137.1
    IPv4 Subnet Mask: 255.255.255.0
    default gateway: 192.168.10.1
    preferred DNS server: 208.67.222.222


    the other computer has obtain IP and DNS address automatically

    Using ADSL modem is a Sagem F@st 800 to connect to the internet

    no router used, just a simple cat-45 cable (i think that's the name of the cable!)

    Any help would be greatly appreciated

    my first time on the forum, so a BIG hello to everyone and a happy new year!

    Thanks!
     
  2. patcooke

    patcooke Microsoft MVP
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    Before looking atthe ICS problem there is something wrong with this config. The IP address, default gateway and subnet mask are not compatible. For a default gateway of 192.168.10.1 and a subnet mask of 255.255.255.255 the IP address must be of the foram 192.168.10.*
     
  3. Ben Yermak

    Ben Yermak New Member

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    hello patcooke

    i have removed the default gateway ip, i wasnt sure why it was there, everything seems ok, but when i turn on windows firewall on, ICS doesnt function :/
     
  4. Ben Yermak

    Ben Yermak New Member

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    bump

    anyone got any ideas? feel a bit naked without a firewall :)

    could it be that i need to find out my other computers ip address and add it as an exception to windows firewall?

    thanks
     
  5. patcooke

    patcooke Microsoft MVP
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    You cannot just "remove" a default gateway - it is needed to access LAN and WAN components. Please post a full listing of your ipconfig so we can see the whole picture.
     
  6. Ben Yermak

    Ben Yermak New Member

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    just an update... when windows firewall is on, i get a "dns server not respondig" message when trying to resolve the internet connection on the other pc, (clicking on the red cross)
     
  7. Ben Yermak

    Ben Yermak New Member

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    ip config (of computer holding the internet connection)

    Windows IP Configuration




    Ethernet adapter Local Area Connection:


    Connection-specific DNS Suffix . :
    IPv4 Address. . . . . . . . . . . : 192.168.137.1
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 0.0.0.0


    PPP adapter Internet ADSL:


    Connection-specific DNS Suffix . :
    IPv4 Address. . . . . . . . . . . : 41.142.90.142
    Subnet Mask . . . . . . . . . . . : 255.255.255.255
    Default Gateway . . . . . . . . . : 0.0.0.0
     

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