Re: forcing users to use a dhcp address

if users assign an address statically after receiving it through DHCP then
you are risking a duplicate IP address after the lease is expired.

On Sun, Aug 23, 2009 at 6:35 AM, Dane Newman <dane.newman_at_gmail.com> wrote:

> I guess I was thinking about it a bit. If the goal is to force users to
> use custom dns server settings making sure they get a dhcp lease with dhcp
> snooping/source guard still can't accomplish this because the user can
> always just reset to static ip with the dhcp address handed out and there
> own dns servers. I suppose the only way to truly force this is with an acl
> blocking all dns servers but the ones approved.
>
> Dane
>
>
> On Sun, Aug 23, 2009 at 6:13 AM, S Malik <ccie.09_at_gmail.com> wrote:
>
>> I think, as Kumar said, it should be source guard which works with dhcp
>> snooping.
>>
>> On Sat, Aug 22, 2009 at 2:15 PM, R.B. Kumar <seekumarin_at_gmail.com>wrote:
>>
>>> Hi,
>>>
>>> It is possible using DHCP Snooping with SOURCE-GUARD
>>>
>>> HTH
>>>
>>> regards,
>>>
>>> RBK
>>>
>>>
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Received on Sun Aug 23 2009 - 14:58:41 ART