DHCP Info

Hi i went into my router config today, went to DHCP Client List there is

Station 1
Station 2

these 2 are my pcs

but there is also

Host Name :OEMComputer
IP Address: 192.168.2.4
Mac: 00:06:f4:05:16:bc

Could this be a intruder, i have MAC address filtering.

Kinf Regards

Carl

In article <6kugc.670$mE.377@newsfe1-win>, "CS" (E-Mail Removed)
says...
> Hi i went into my router config today, went to DHCP Client List there is
>
> Station 1
> Station 2
>
> these 2 are my pcs
>
> but there is also
>
> Host Name :OEMComputer
> IP Address: 192.168.2.4
> Mac: 00:06:f4:05:16:bc
>
> Could this be a intruder, i have MAC address filtering.
>
According to the MAC address it's probably a wireless device made by
Prime Electronics & Satellitics Inc. Could it be the that the WAP built
into your router gets assigned this address? (I don't do wireless, so I
haven't a clue how these things work.)

On Sun, 18 Apr 2004 13:17:14 +0100, "CS" <(E-Mail Removed)> wrote:

>Hi i went into my router config today, went to DHCP Client List there is
>
>Station 1
>Station 2
>
>these 2 are my pcs
>
>but there is also
>
>Host Name :OEMComputer
>IP Address: 192.168.2.4
>Mac: 00:06:f4:05:16:bc
>
>Could this be a intruder, i have MAC address filtering.

You don't mention if your router is a hardware one and if it supports
wireless? If it is wireless one it is possible someone could connect
to the LAN side (as opposed to the WAN side) of the router?

All the best ..

T i m

Also My router is a Belkin 54g Wireless Router

"T i m" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Sun, 18 Apr 2004 13:17:14 +0100, "CS" <(E-Mail Removed)> wrote:
>
> >Hi i went into my router config today, went to DHCP Client List there is
> >
> >Station 1
> >Station 2
> >
> >these 2 are my pcs
> >
> >but there is also
> >
> >Host Name :OEMComputer
> >IP Address: 192.168.2.4
> >Mac: 00:06:f4:05:16:bc
> >
> >Could this be a intruder, i have MAC address filtering.
>
> You don't mention if your router is a hardware one and if it supports
> wireless? If it is wireless one it is possible someone could connect
> to the LAN side (as opposed to the WAN side) of the router?
>
> All the best ..
>
> T i m

"CS" <(E-Mail Removed)> wrote in message news:<6kugc.670$mE.377@newsfe1-win>...
> Hi i went into my router config today, went to DHCP Client List there is
>
> Station 1
> Station 2
>
> these 2 are my pcs
>
> but there is also
>
> Host Name :OEMComputer
> IP Address: 192.168.2.4
> Mac: 00:06:f4:05:16:bc
>
> Could this be a intruder, i have MAC address filtering.
>
> Kinf Regards
>
> Carl

You mention MAC address filtering, So its safe to assume you have
wireless. Check the WAP and see if its mac address matches. It
proberly will if its running default and as such is using DHCP,
Otherwise try browsing to it..

Ian

On Sun, 18 Apr 2004 20:34:05 +0100, "CS" <(E-Mail Removed)> wrote:


>"T i m" <(E-Mail Removed)> wrote in message
>news:(E-Mail Removed).. .
>> On Sun, 18 Apr 2004 13:17:14 , "CS" <(E-Mail Removed)> wrote:
>>
>> >Hi i went into my router config today, went to DHCP Client List there is
>> >
>> >Station 1
>> >Station 2
>> >
>> >these 2 are my pcs
>> >
>> >but there is also
>> >
>> >Host Name :OEMComputer
>> >IP Address: 192.168.2.4
>> >Mac: 00:06:f4:05:16:bc
>> >
>> >Could this be a intruder, i have MAC address filtering.
>>
>> You don't mention if your router is a hardware one and if it supports
>> wireless? If it is wireless one it is possible someone could connect
>> to the LAN side (as opposed to the WAN side) of the router?


Also My router is a Belkin 54g Wireless Router


Well in that case it *is* possible that someone locally may have
hooked into your network.

To avoid this try the following at the router and any other wireless
stuff you are using ..

Change the SSID to something else (especially something other than
'Wireless')

Turn on WEP to whatever is the highest everything will go to (probably
64 or 128 bit)

Once it's all going turn off SSID broadcast (if you can). It easier to
setup if it's on at the beginning.

Some routers let you restrict access to just a limited range of mac
addresses.

All the best ..

T i m

Oh, also make sure you have a firewall on all your local machines.

On Sun, 18 Apr 2004 15:27:22 +0100, Rob Morley <(E-Mail Removed)>
wrote:

>According to the MAC address it's probably a wireless device made by
>Prime Electronics & Satellitics Inc. Could it be the that the WAP built
>into your router gets assigned this address? (I don't do wireless, so I
>haven't a clue how these things work.)

How can you tell that? Of the six wireless networks I have seen
available from my house, four are using a very similar MAC address and
I have assumed they are all using the same, or similar, routers.

The anorak in me is curious as to how you would know what MAC
addresses belong to which manufacturers?

In article <(E-Mail Removed)>, "Simon
Pleasants" (E-Mail Removed) says...
> On Sun, 18 Apr 2004 15:27:22 +0100, Rob Morley <(E-Mail Removed)>
> wrote:
>
> >According to the MAC address it's probably a wireless device made by
> >Prime Electronics & Satellitics Inc. Could it be the that the WAP built
> >into your router gets assigned this address? (I don't do wireless, so I
> >haven't a clue how these things work.)
>
> How can you tell that? Of the six wireless networks I have seen
> available from my house, four are using a very similar MAC address and
> I have assumed they are all using the same, or similar, routers.
>
> The anorak in me is curious as to how you would know what MAC
> addresses belong to which manufacturers?
>
Look it up on the Interweb :-) Each manufacturer of network equipment
gets their own MAC prefix to use, to ensure that numbers are unique.

In article <6kugc.670$mE.377@newsfe1-win>, (E-Mail Removed) burbled
happily...
> Hi i went into my router config today, went to DHCP Client List there is
>
> Station 1
> Station 2
>
> these 2 are my pcs
>
> but there is also
>
> Host Name :OEMComputer
> IP Address: 192.168.2.4
> Mac: 00:06:f4:05:16:bc
>
> Could this be a intruder, i have MAC address filtering.

Could it be your router?
--
Craig Oldfield

Rob Morley <(E-Mail Removed)> wrote in message news:<(E-Mail Removed) et>...
> In article <(E-Mail Removed)>, "Simon
> Pleasants" (E-Mail Removed) says...
> > On Sun, 18 Apr 2004 15:27:22 +0100, Rob Morley <(E-Mail Removed)>
> > wrote:
> >
> > >According to the MAC address it's probably a wireless device made by
> > >Prime Electronics & Satellitics Inc. Could it be the that the WAP built
> > >into your router gets assigned this address? (I don't do wireless, so I
> > >haven't a clue how these things work.)
> >
> > How can you tell that? Of the six wireless networks I have seen
> > available from my house, four are using a very similar MAC address and
> > I have assumed they are all using the same, or similar, routers.
> >
> > The anorak in me is curious as to how you would know what MAC
> > addresses belong to which manufacturers?
> >
> Look it up on the Interweb :-) Each manufacturer of network equipment
> gets their own MAC prefix to use, to ensure that numbers are unique.


As Rob says, each manufacturer is assigned a MAC address prefix by the
IEEE. The first 6 hex digits (3 bytes) identifies the manufacturer.

For a full list see http://standards.ieee.org/regauth/oui/oui.txt

Pete