Whomever is doing the scan is probably spoofing their address.
Carric Dooley
COM2:Interactive Media
http://www.com2usa.com
On Thu, 6 May 1999, Joshua Chamas wrote:
> Hey,
>
> One of my machines just got probed by a set of IPs
> during the same _TCP_ probe, one of which is an illegal
> 192.168.1.*
>
> My understanding was that 192.168.1.* addresses wouldn't
> be routable, and that having the probe alternate IPs
> also concerns me.
>
> So I wonder what kind of danger there might be here.
> Could this be some kind of "stealth" probe. What good
> would it do a scanner to alternate IP's ? Is the
> 192.168.1.* some sort of primer?
>
> Someone please enlighten me as this challenges my knowledge
> of IP networking.
>
> Thanks,
>
> Joshua
>
> (2) May 6 20:04:20 bastion ipmon[87]: 20:04:20.104592 iprb @0:3 p
> 192.168.1.65,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 44 -S
> (1) May 6 20:04:23 bastion ipmon[87]: 20:04:23.065728 iprb @0:3 p
> 38.149.215.71,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 44 -S
> (1) May 6 20:04:23 bastion ipmon[87]: 20:04:23.171150 iprb @0:3 p
> 38.149.215.71,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -A
> (1) May 6 20:04:23 bastion ipmon[87]: 20:04:23.173108 iprb @0:3 p
> 38.149.215.71,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 114 -AP
> (1) May 6 20:04:23 bastion ipmon[87]: 20:04:23.298487 iprb @0:3 p
> 38.149.215.71,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -A
> (1) May 6 20:04:31 bastion ipmon[87]: 20:04:30.479423 iprb @0:3 p
> 192.168.1.65,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -AF
> (1) May 6 20:04:40 bastion ipmon[87]: 20:04:40.094519 iprb @0:3 p
> 192.168.1.65,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -AF
> (1) May 6 20:04:59 bastion ipmon[87]: 20:04:59.323681 iprb @0:3 p
> 192.168.1.65,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -AF
> (1) May 6 20:05:38 bastion ipmon[87]: 20:05:37.782541 iprb @0:3 p
> 192.168.1.65,1752 -> 209.xxx.xxx.xxx,80 PR tcp len 20 40 -AF
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