Re: [SLUG] Router Firewalls

From: Chris Mathey (slug@mathey.org)
Date: Mon Apr 24 2006 - 10:18:31 EDT


Pete S. wrote:
> Bob Stia wrote:
>
>> Hello Sluggers,
>>
>> When I switched from dial-up to verizon dsl about a month ago I bought
>> a D-Link DI-604 router for the ethernet capability of my computers and
>> as a firewall.
>> Question is; How can I tell/test to see what this built in firewall is
>> doing (allowing -denying etc.) ?
>>
>> Bob S.
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>>
> Try http://www.grc.com "Shields UP" area. This site will scan your
> common external ports. Alternatively, you can have a friend do the same
> with a port scanner.
> -----------------------------------------------------------------------
> This list is provided as an unmoderated internet service by Networked
> Knowledge Systems (NKS). Views and opinions expressed in messages
> posted are those of the author and do not necessarily reflect the
> official policy or position of NKS or any of its employees.
>
>
I have yet to see an off the shelf router that does not have a default
"deny" or drop policy.
So if you didn't explicitly allow ports to be open then they are closed.

-Chris
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