Re: 0.0.0.0 Probes
From: xyberpix (xyberpix_at_xyberpix.com)
Date: 10/24/04
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- In reply to: John Smithson: "0.0.0.0 Probes"
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To: John Smithson <why1234@hotmail.com> Date: Sun, 24 Oct 2004 12:58:45 +0100
I know that Sygate personal firewall can hide the IP addy of the machine
it's installed on, and when it does it shows up as 0.0.0.0 in some logs,
this may be the case here. Anyone else seen this before?
xyberpix
On Thu, 2004-10-21 at 21:47, John Smithson wrote:
> Gurus,
>
> Over the last few days my external NIDS (outside firewall) has picked up
> huge amount of HTTP Probe (over 50,000/day) with source IP address 0.0.0.0.
> The destinations are every IP address on my public-DMZ. These are just HTTP
> Probes. This traffic is being dropped by my firewalls. Internal IDS does
> not show any of this event. Initially, I thought it was just normal scan,
> but since it is occurring everyday with that high frequency, I got more
> curious.
>
> However, I'm trying to understand what / how does the 0.0.0.0 Source mean.
> Could some of you kindly shed light on this fellow? I have googled it and
> done normal research.. but still not 100% clear. Is it something that we
> have mis-configuration? Is it broadcast traffic? Can I user my router to
> block this? .. all normal questions to defend my assets..
>
> Thank you,
>
> John
>
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-- For Security and Open Source news: http://xyberpix.demon.co.uk
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