could someone be using my IP address.

Hi everyone, basicley we have a wireless network in our house and im
concerned that someone in my street is using my connection!! does then
mean they will also be using our IP address???

any help would be great.

thanks.


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View this thread: http://www.wirelessforums.org/showthread.php?t=26715
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doesnt_work28 wrote:
> Hi everyone, basicley we have a wireless network in our house and im
> concerned that someone in my street is using my connection!! does then
> mean they will also be using our IP address???

In more or less terms: yes.

>
> any help would be great.

Look in the DHCP Active Clients/Active IP table of your router. If there
are any entries there that don't appear to be on your network, do a
release on them and change your WEP/WPA keys immediately.

I'm assuming that you are using WPA and have set a password other than
the defaults, in which case there's a reasonable chance you're secure.

doesnt_work28 wrote:
> Hi everyone, basicley we have a wireless network in our house and im
> concerned that someone in my street is using my connection!! does then
> mean they will also be using our IP address???
>
> any help would be great.
>
> thanks.
>
>
> ------------------------------------------------------------------------
> View this thread: http://www.wirelessforums.org/showthread.php?t=26715
> http://www.wirelessforums.org
>
If all you did is ask the experts at best buy for a wireless "thing" and
then you took it home and plugged it in the answer is quite likely a yes.

David Fairbrother <(E-Mail Removed)> hath wroth:

>Look in the DHCP Active Clients/Active IP table of your router. If there
>are any entries there that don't appear to be on your network, do a
>release on them and change your WEP/WPA keys immediately.

If he had an evil hacker (like me) on his wireless network, that knew
what he was doing, the evil hacker would assign the necessary static
IP to his wireless client (along with the gateway, netmask, and DNS
servers). The evil hacker would never appear in the DHCP lease table.
However, the evil hacker will appear in the ARP table (list of MAC
addresses and corresponding IP addresses), which unfortunately most
cheap routers do not display.

>I'm assuming that you are using WPA and have set a password other than
>the defaults, in which case there's a reasonable chance you're secure.

Agreed. WPA or WPA2 is one's primary security mechanism. WEP is next
to useless.

However, WPA-PSK has a problem (other than it can be cracked by brute
force interation if too short a key is used). The problem is the
security of the shared key. If the evil hacker has access to one of
the owners wireless computers, a somewhat usable form of the WPA-PSK
key can be extracted from the Windoze registry as in:
<http://www.wirelessdefence.org/Contents/Aircrack-ng_WinWzcook.htm>
<http://www.aircrack-ng.org/doku.php?id=tools&DokuWiki=155e3c0ce52dd0d9b291a27 bab8d7847#wzcook>

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

So say for example, who ever this is that is a%sehole is thats doing
this is sat at home searching through his avalible networks and mine
pops up, he then connects to it (at the time it was unsecured) he/she
then starts to surf away, will he then be using our IP address, iam
concerned as i think this has been happening for a fair few months now.!
thanks again.


------------------------------------------------------------------------
View this thread: http://www.wirelessforums.org/showthread.php?t=26715
http://www.wirelessforums.org

doesnt_work28 wrote:
> So say for example, who ever this is that is a%sehole is thats doing
> this is sat at home searching through his avalible networks and mine
> pops up, he then connects to it (at the time it was unsecured) he/she
> then starts to surf away, will he then be using our IP address, iam
> concerned as i think this has been happening for a fair few months now.!
> thanks again.

The sure could. They could set in a van outside your home or work and
download and upload all sorts of 'bad' stuff. It looks like you were
doing it all.

This is why you need to secure any wireless connection. WPA2 is best.

On Aug 10, 5:38 pm, doesnt_work28 <doesnt_work28.2v4...@no-
mx.wirelessforums.org> wrote:
> Hi everyone, basicley we have a wireless network in our house and im
> concerned that someone in my street is using my connection!! does then
> mean they will also be using our IP address???
>
> any help would be great.
>
> thanks.

Maybe he is using your AP with his IP setting by himeself but not
provided by your DHCP.