DHCP question

Hi,

I have 2 IP which I want to exclude from a range. One of the IP is used by a
switch and the other one is assigned to a phone system - so I dont know the
mac address.

How do I exclude those 2 Ip's from the range. I only see the option to
reserve in DHCP in window 2003.

Thanks

biren wrote:
> Hi,
>
> I have 2 IP which I want to exclude from a range. One of the IP is
> used by a switch and the other one is assigned to a phone system - so
> I dont know the mac address.
>
> How do I exclude those 2 Ip's from the range. I only see the option to
> reserve in DHCP in window 2003.
>
> Thanks

Ping the two IP addresses and then do a

arp -a xx.xx.xx.xx

This will give you the mac address if its in the arp cache after the ping.

You can then properly reserve the IP and have the mac for future reference.

If you can't get the mac, just make one up. The DHCP server will 'reserve'
it for you.

--
/kj

Thank You. Much Appreciated.

"kj [SBS MVP]" wrote:

> biren wrote:
> > Hi,
> >
> > I have 2 IP which I want to exclude from a range. One of the IP is
> > used by a switch and the other one is assigned to a phone system - so
> > I dont know the mac address.
> >
> > How do I exclude those 2 Ip's from the range. I only see the option to
> > reserve in DHCP in window 2003.
> >
> > Thanks
>
> Ping the two IP addresses and then do a
>
> arp -a xx.xx.xx.xx
>
> This will give you the mac address if its in the arp cache after the ping.
>
> You can then properly reserve the IP and have the mac for future reference.
>
> If you can't get the mac, just make one up. The DHCP server will 'reserve'
> it for you.
>
> --
> /kj
>
>
> .
>

biren wrote:
> Thank You. Much Appreciated.

You're welcome.

>
> "kj [SBS MVP]" wrote:
>
>> biren wrote:
>>> Hi,
>>>
>>> I have 2 IP which I want to exclude from a range. One of the IP is
>>> used by a switch and the other one is assigned to a phone system -
>>> so I dont know the mac address.
>>>
>>> How do I exclude those 2 Ip's from the range. I only see the option
>>> to reserve in DHCP in window 2003.
>>>
>>> Thanks
>>
>> Ping the two IP addresses and then do a
>>
>> arp -a xx.xx.xx.xx
>>
>> This will give you the mac address if its in the arp cache after the
>> ping.
>>
>> You can then properly reserve the IP and have the mac for future
>> reference.
>>
>> If you can't get the mac, just make one up. The DHCP server will
>> 'reserve' it for you.
>>
>> --
>> /kj
>>
>>
>> .

--
/kj