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Sophos Client Firewall and 3G NDIS

ricdgr

Hi,

What is the meaning of the following statement (from the release notes):

- Sophos Client Firewall does not support the “mobile broadband” driver

Does it mean Sophos Client Firewall does not support the NDIS driver?

What exactly happens when a computer is using that kind of driver? Will the firewall allow all the traffic? Can the client fallback to the Windows Firewall? Exactly how can we overcome this limitation?

Thanks.

:40923


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    I will answer my own question:

    - When a user has a 3G card with the Windows 7 Driver model (that was published before 2009), the rules set for the firewall will not apply. So, all inbound and outbound traffic will be allowed.

    SOPHOS does not install any NDIS filter driver under the 3G network interface, so it is clear that the firewall is doing nothing, letting the clients unprotected.

    I wonder if this will ever be fixed... This is unacceptable behaviour.

    And there is nothing "arcane" about the NDIS and the Windows 7 3G Driver Model. This driver model was created exactly to standardize the way Windows would deal with 3G cards, and end with all those different ways manufacturers where using to present a 3G modem to a PC. This is why, when you use a NDIS Driver, you do not need any special software, and you can see the 3G networks under the Network icon in the bottom right corner.

    :41157
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  • 0

    I will answer my own question:

    - When a user has a 3G card with the Windows 7 Driver model (that was published before 2009), the rules set for the firewall will not apply. So, all inbound and outbound traffic will be allowed.

    SOPHOS does not install any NDIS filter driver under the 3G network interface, so it is clear that the firewall is doing nothing, letting the clients unprotected.

    I wonder if this will ever be fixed... This is unacceptable behaviour.

    And there is nothing "arcane" about the NDIS and the Windows 7 3G Driver Model. This driver model was created exactly to standardize the way Windows would deal with 3G cards, and end with all those different ways manufacturers where using to present a 3G modem to a PC. This is why, when you use a NDIS Driver, you do not need any special software, and you can see the 3G networks under the Network icon in the bottom right corner.

    :41157
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