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How can I see if someone is using my wireless connection

 
 
ronlaw
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      09-09-2005, 02:55 AM
How can I see if someone is using my wireless connection to the internet.
 
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Roger Abell [MVP]
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      09-09-2005, 03:37 AM
One way is to watch the IPs DHCP has handed out.
You can do this even in the mgmt interfaces for the
inexpensive household wireless routers.

"ronlaw" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> How can I see if someone is using my wireless connection to the internet.



 
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Imhotep
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      09-09-2005, 04:12 AM
Roger Abell [MVP] wrote:

> One way is to watch the IPs DHCP has handed out.
> You can do this even in the mgmt interfaces for the
> inexpensive household wireless routers.
>
> "ronlaw" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> How can I see if someone is using my wireless connection to the internet.


....a better way would be to look at the wireless router arp table. Why?
Because if I broke into you wireless network, I would not use your DHCP
server...

Imhotep
 
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Steven L Umbach
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      09-09-2005, 04:35 AM
Your device should have some sort of logging capability. Logon to it and
check and see if unknown IP or mac addresses have been using it and/or there
has been unexplained internet activity such as at times when your computer
was shut down. Make sure that you are not using the default name/password
for the device, that it is not configured to be managed remotely, and that
WEP or better yet WPA-PSK is enabled with a complex preshared key. WEP is
better then nothing but is pretty weak protection by today's standards. If I
was forced to use non dynamic WEP I would make sure that the WEP keys were
changed fairly often - maybe as much as once a week. --- Steve



"ronlaw" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> How can I see if someone is using my wireless connection to the internet.



 
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Greg Ro
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      09-09-2005, 03:30 PM
On Thu, 8 Sep 2005 23:35:51 -0500, "Steven L Umbach"
<(E-Mail Removed)> wrote:

>Your device should have some sort of logging capability. Logon to it and
>check and see if unknown IP or mac addresses have been using it and/or there
>has been unexplained internet activity such as at times when your computer
>was shut down. Make sure that you are not using the default name/password
>for the device, that it is not configured to be managed remotely, and that
>WEP or better yet WPA-PSK is enabled with a complex preshared key. WEP is
>better then nothing but is pretty weak protection by today's standards. If I
>was forced to use non dynamic WEP I would make sure that the WEP keys were
>changed fairly often - maybe as much as once a week. --- Steve
>
>
>
>"ronlaw" <(E-Mail Removed)> wrote in message
>news:(E-Mail Removed)...
>> How can I see if someone is using my wireless connection to the internet.

>

Some people may not even realize they are using another person
connection.

Greg R
 
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Srikrishna Komatineni
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      10-09-2005, 12:01 AM
Possible..particularly if the group of people are staying in an apartment.
Most of the people dont bother to change the default settings which makes
the linksys SSID name common. n Windows settings allows to connect to the
other unauthorized as well.
To see weather any one else is using the connection you can check the arp
entries.




"Greg Ro" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Thu, 8 Sep 2005 23:35:51 -0500, "Steven L Umbach"
> <(E-Mail Removed)> wrote:
>
>>Your device should have some sort of logging capability. Logon to it and
>>check and see if unknown IP or mac addresses have been using it and/or
>>there
>>has been unexplained internet activity such as at times when your computer
>>was shut down. Make sure that you are not using the default name/password
>>for the device, that it is not configured to be managed remotely, and that
>>WEP or better yet WPA-PSK is enabled with a complex preshared key. WEP is
>>better then nothing but is pretty weak protection by today's standards. If
>>I
>>was forced to use non dynamic WEP I would make sure that the WEP keys were
>>changed fairly often - maybe as much as once a week. --- Steve
>>
>>
>>
>>"ronlaw" <(E-Mail Removed)> wrote in message
>>news:(E-Mail Removed)...
>>> How can I see if someone is using my wireless connection to the
>>> internet.

>>

> Some people may not even realize they are using another person
> connection.
>
> Greg R



 
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Roger Abell [MVP]
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      10-09-2005, 05:51 AM
"Imhotep" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Roger Abell [MVP] wrote:
>
>> One way is to watch the IPs DHCP has handed out.
>> You can do this even in the mgmt interfaces for the
>> inexpensive household wireless routers.
>>
>> "ronlaw" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>>> How can I see if someone is using my wireless connection to the
>>> internet.

>
> ...a better way would be to look at the wireless router arp table. Why?
> Because if I broke into you wireless network, I would not use your DHCP
> server...
>
> Imhotep


Granted.
From the post I was assuming poster has a lower-end household device.
--
Roger


 
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Roger Abell [MVP]
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      10-09-2005, 09:56 AM
Worse yet, the Windows wireless client does not let one
select between, or even see, the different BSIDs for a
given SSID like "Linksys" so they might have no chance
of knowing which they are actually using if they are all
defaulted.

"Srikrishna Komatineni" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Possible..particularly if the group of people are staying in an apartment.
> Most of the people dont bother to change the default settings which makes
> the linksys SSID name common. n Windows settings allows to connect to the
> other unauthorized as well.
> To see weather any one else is using the connection you can check the arp
> entries.
>
>
>
>
> "Greg Ro" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
>> On Thu, 8 Sep 2005 23:35:51 -0500, "Steven L Umbach"
>> <(E-Mail Removed)> wrote:
>>
>>>Your device should have some sort of logging capability. Logon to it and
>>>check and see if unknown IP or mac addresses have been using it and/or
>>>there
>>>has been unexplained internet activity such as at times when your
>>>computer
>>>was shut down. Make sure that you are not using the default name/password
>>>for the device, that it is not configured to be managed remotely, and
>>>that
>>>WEP or better yet WPA-PSK is enabled with a complex preshared key. WEP
>>>is
>>>better then nothing but is pretty weak protection by today's standards.
>>>If I
>>>was forced to use non dynamic WEP I would make sure that the WEP keys
>>>were
>>>changed fairly often - maybe as much as once a week. --- Steve
>>>
>>>
>>>
>>>"ronlaw" <(E-Mail Removed)> wrote in message
>>>news:(E-Mail Removed)...
>>>> How can I see if someone is using my wireless connection to the
>>>> internet.
>>>

>> Some people may not even realize they are using another person
>> connection.
>>
>> Greg R

>
>



 
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ronlaw
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      26-10-2005, 02:55 AM


"Roger Abell [MVP]" wrote:

> Worse yet, the Windows wireless client does not let one
> select between, or even see, the different BSIDs for a
> given SSID like "Linksys" so they might have no chance
> of knowing which they are actually using if they are all
> defaulted.
>
> "Srikrishna Komatineni" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
> > Possible..particularly if the group of people are staying in an apartment.
> > Most of the people dont bother to change the default settings which makes
> > the linksys SSID name common. n Windows settings allows to connect to the
> > other unauthorized as well.
> > To see weather any one else is using the connection you can check the arp
> > entries.
> >
> >
> >
> >
> > "Greg Ro" <(E-Mail Removed)> wrote in message
> > news:(E-Mail Removed)...
> >> On Thu, 8 Sep 2005 23:35:51 -0500, "Steven L Umbach"
> >> <(E-Mail Removed)> wrote:
> >>
> >>>Your device should have some sort of logging capability. Logon to it and
> >>>check and see if unknown IP or mac addresses have been using it and/or
> >>>there
> >>>has been unexplained internet activity such as at times when your
> >>>computer
> >>>was shut down. Make sure that you are not using the default name/password
> >>>for the device, that it is not configured to be managed remotely, and
> >>>that
> >>>WEP or better yet WPA-PSK is enabled with a complex preshared key. WEP
> >>>is
> >>>better then nothing but is pretty weak protection by today's standards.
> >>>If I
> >>>was forced to use non dynamic WEP I would make sure that the WEP keys
> >>>were
> >>>changed fairly often - maybe as much as once a week. --- Steve
> >>>
> >>>
> >>>
> >>>"ronlaw" <(E-Mail Removed)> wrote in message
> >>>news:(E-Mail Removed)...
> >>>> How can I see if someone is using my wireless connection to the
> >>>> internet.
> >>>
> >> Some people may not even realize they are using another person
> >> connection.
> >>
> >> Greg R

> >
> >

>
> Thanks for all of your responses. I have checked the Activity Log on my Wireless Router software. It shows a lot of dates that say "Unrecognized access from xx.xx.xxx. port xxx. Could someone let me know how I can find out where or what these ports are connected to?
>

 
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