Determining request

Matt Causey matt.causey at gmail.com
Tue Jan 5 20:09:52 UTC 2010


On Tue, Jan 5, 2010 at 12:00 PM, Ashley M. Kirchner <ashley at pcraft.com> wrote:
>
>   Is there a way to detect whether a request came in from a wired network
> versus a wireless network?  Our setup is as follows:
>
>   Main DHCP server that dishes out IPs based on MAC addresses.  This is
> wired into our main switch.  From that switch I also have a wireless access
> point.  A wireless device will send a request out which goes through the
> access point to the DHCP server and back.  The wireless class is set to
> allow unknown-clients.
>
>   If a wired device sends a request, and it has *not* been defined already
> through it's MAC, DHCP will automatically drop it in the wireless group and
> pool.  I don't want that.  For our wired network, I don't want anything to
> be able to get an IP unless it's already defined.  For the wireless one,
> they should all go in the wireless pool and get an IP from there.
>
>   So, is there some way to determine if a request came in from a wired
> device versus a wireless one?
>
Depending on the capabilities of your LAN/WLAN gear....and how the
DHCP traffic flows, you might be able to use some option 83 foo to
accomplish that.

--
Matt

>   A
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