[ale] Hijacking my own IP

[Derek Atkins]

Hi,

On Fri, June 11, 2021 12:09 pm, Chris Fowler via Ale wrote:
> I don't control the IP addressing.   The admin made a mistake.  I'd like
> my connection to remain up.  It would also be nice if printing became an
> issue.   A little heat moves the feet....

I suggest you literally sit on the admin's desk until they fix it.
There is no good way to do what you want.  Even if you keep a "ping" alive
24/7, there is still a possible ARP race condition that will take you off
the net.

So ... as you have no control .... go bother the person who does until
they fix it.

-derek

>
> ________________________________
> From: Derek Atkins <derek at ihtfp.com>
> Sent: Friday, June 11, 2021 12:01 PM
> To: Atlanta Linux Enthusiasts <ale at ale.org>
> Cc: Chris Fowler <cfowler at outpostsentinel.com>
> Subject: Re: [ale] Hijacking my own IP
>
> Umm.. Why do they have the same IP address??
> Don't do that!
>
> -derek
>
> On Fri, June 11, 2021 11:53 am, Chris Fowler via Ale wrote:
>> I have a HP printer and Linux device with the same IP address on a
>> network.  I have no control over the printer.  I'm trying to figure out
>> how to effectively use arping to "hijack" my own IP on this subnet.
>>
>> My remote connection to the device is dropped at random times.  I'm
>> guessing maybe someone is printing. This causes the firewall to update
>> its
>> arp cache, send a packet to the HP instead of my device, and I get a RST
>> on my end because the HP said, "I have no clue what this is."
>>
>>
>>
>>
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>
>
> --
>        Derek Atkins                 617-623-3745
>        derek at ihtfp.com             www.ihtfp.com<http://www.ihtfp.com>
>        Computer and Internet Security Consultant
>
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> https://mail.ale.org/mailman/listinfo/ale
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>


-- 
       Derek Atkins                 617-623-3745
       derek at ihtfp.com             www.ihtfp.com
       Computer and Internet Security Consultant