[GRLUG] DoS Block on my local IP address

[Joseph Workman]

They might be blocking you by mac address

On Tue, Dec 28, 2010 at 9:49 AM, Eric Beversluis <
ebever at researchintegration.org> wrote:

>  On 12/28/2010 9:28 AM, Eric Beversluis wrote:
>
>> On 12/28/2010 8:41 AM, Dan Pilcheck wrote:
>>
>>> On Tue, Dec 28, 2010 at 8:01 AM, Eric Beversluis
>>> <ebever at researchintegration.org>  wrote:
>>>
>>>> On 12/28/2010 7:57 AM, Ben Rousch wrote:
>>>>
>>>>> On Tue, Dec 28, 2010 at 7:52 AM, Eric Beversluis
>>>>> <ebever at researchintegration.org>    wrote:
>>>>>
>>>>> Suddenly this morning my Linux box won't reach the internet, although
>>>>>> LAN
>>>>>> is
>>>>>> working fine. When I look at the firewall log on my Belkin router, it
>>>>>> shows
>>>>>> a DoS block on the Linux box IP address. When I talk to Belkin
>>>>>> support,
>>>>>> they
>>>>>> say that I need to change something in the Linux box to remove the
>>>>>> block,
>>>>>> not something in the Belkin wireless router.
>>>>>>
>>>>>> Does anyone know what would be causing this and what I need to do? (I
>>>>>> was
>>>>>> trying unsuccessfully to access the Linux box by terminal server
>>>>>> client
>>>>>> last
>>>>>> night because of a monitor problem on the box. So I'm wondering if
>>>>>> that
>>>>>> may
>>>>>> have triggered some response in the Linux box that I need to undo?)
>>>>>>
>>>>>> Is it possible that your ISP is blocking you so as to draw your
>>>>> attention to a virus infection or nefarious activity emanating from
>>>>> your network?
>>>>>
>>>>> It's the private IP (192.168.2.3) that's showing blocked, and the
>>>> Windows
>>>> boxes are getting out to the network fine. I don't think there's any way
>>>> for
>>>> TimeWarner to block some of the boxes on my LAN but not others, is there
>>>>
>>>>>
>>>>> I've tried turning the Linux firewall off an on, turning the Belkin
>>>>>> firewall
>>>>>> off and on, powering down and up the Belkin and the cable modem, and
>>>>>> probably some other things I can't remember.
>>>>>>
>>>>>> Running openSUSE 11.2 on Lenovo 3000 N100.
>>>>>>
>>>>> I'm sure you have, but have you tried assigning a different LAN IP
>>> address for the linux machine?
>>>
>>> Update: I turned the router's DHCP off and then back on. Got new IPaddr
>> for the Linux box (...6). And that IP addr is now showing "Blocked" in the
>> router's firewall log. No Internet but still can reach/ping other LAN boxes.
>> I tried booting  from a live Ubuntu CD and got to the Internet fine with
>> that.
>>
>> So I'm coming back to wondering whether my trying to do remote access to
>> the box without having it properly configured to accept that could have
>> caused it to be behaving differently this morning? I don't see anything in
>> the Yast firewall settings page relevant to this (actually tried with the
>> firewall turned off, but that didn't help either).
>>
>> Will try router factory reset and see what that does.
>>
>> Thanks for all the suggestions.
>>
>> NADA. Did factory reset etc. Still no Internet connectivity, just LAN,
> from the Lenovo Linux box.
>
>
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-- 
Joseph J. K. Workman
Workman Technology Services
616.827.7570

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