Josh,

We are using HP Procurve 2600 series switches. We do have DHCP
filtering turned on so that only authorized servers can do DHCP, but I
am unaware of any Procurve that requires DHCP acquisition before
forwarding. That feature sounds like it would fix my issue.

Does anybody know if there is such a feature on Procurve 2600 switches?

Thanks,
 _
/-\ ndrew


On Wed, Aug 25, 2010 at 12:12 PM, Josh Ward <[email protected]> wrote:
> Hey Andrew,
>
> What kind of switches are you using?  Lots of new switches have features
> to block rogue DHCP servers, require DHCP address acquisition before it
> will forward traffic, etc.
>
> We're a cisco 2960 shop here for our res-halls.  If you are on a similar
> switch I'd be happy to share our configuration that prevents this.
>
> -Josh
>
> On 08/25/2010 10:11 AM, Andrew Niemantsverdriet wrote:
>> I am using PacketFence in a university environment, it is used for our
>> residence halls in VLAN mode. Some of our users thinking that they
>> will get around having to register their computer decided that all
>> they would have to do is enter a static IP. They chose 192.168.96.1
>> which is the address of the registration VLAN, this caused the entire
>> system to come crashing down. Nobody was able register, the DHCP
>> server quickly ran out of IP address space and other problems
>> happened. As Monday was the first day of school not many people had
>> registered yet, so it caused headaches for everybody. My question is
>> how can we prevent that from happening in the future, is there anyway?
>> What about users assigning static IP address after they have
>> registered, can we prevent that?
>>
>> Thanks,
>>
>



-- 
 _
/-\ ndrew Niemantsverdriet
Academic Computing
(406) 238-7360
Rocky Mountain College
1511 Poly Dr.
Billings MT, 59102

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