Re: [PCTECH] Looking for an explanation

["Adam Lang" <aalang@xxxxxxxxxxxxxxxxxxxx>]

I would say it would have to be from a wireless connection.   I highly doubt
the DHCP server is broadcasting onto the public side of your internet
connection.  It should only be broadcasting internally.  Plus, I do not see
how a computer on the public side of your router would benefit from your
internal ip address.  Routing wouldn't work.

I would almost be sure it is coming from the wireless network.  As other
people said, pinging doesn't mean anything.  For prevention, go with the
policies that the previous people mentioned.

----- Original Message ----- 
From: "Paul Tuohy" <tuohyp@xxxxxxxxxxxxx>
To: <PcTech@xxxxxxxxxxxx>
Sent: Sunday, March 28, 2004 4:11 PM
Subject: [PCTECH] Looking for an explanation


> Hi all,
>
> I have a home network with a LinkSys Wireless-G Broadband Router. I am
running the DHCP server on the router.
>
> It looks like someone is trying to piggy back my network. When I check the
DHCP Client table I see a client that isn't one of my home PCs. I don't
think it is a neighbour coming in on wirless. If I delete it, it reappears
in within the hour. It always has the same MAC address. It doesn't look like
a live connection - no reply when I ping the IP address.
>
> Is someone piggy backing onto my network through my internet connection?
> Is there a rogue bit of software on one of my PCs?
>
> I have disabled sharing on my home PCs.
>
> All advise greatly appreciated.
>
> TIA
>
> Paul Tuohy
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