DHCP server questions

Hi folks,

I wanted to check the answers to some questions:

Q1. Can DHCP server lease an address if this address already exists in the
network and set manually? Or I should exclude statically This potentially
may cause IP conflict and network failure.

A1. My feeling is that a DHCP server will not check an address exists on the
network. In this situation it's better to assign statically via MAC address,
or exclude and assign manually at the PC.

Q2. If one of the servers is down, what may happen?

A2. The other server will pick up the requests.

Q3. If both servers are down and every machine runs XP SP2 and has an
alternative configuration, will it use the alternative configuration? And
when it will acquire an address from DHCP?

A3. It will only check the DHCP server on reboot.

Q4. If both servers are available, which of them will be used for leasing an
IP address?

A4. The one that receives the address most quickly by the client, that is
the entire process of offer, accept etc.

Q5. As I know, primary and backup DHCP servers must have different scopes to
avoid IP conflict. Is it true?

A5. I'm not sure on this, is it possible for DHCP servers to work in
conjunction with each other, knowing of each other's existence? I didn't
think so, hence different scopes are required.

Thanks

I will correct only your first question as I'm running out of time today.
I'll let the others help you the next questions.

A1. you can set the DHCP server to check if the address already exists on
the network by setting conflict detection.
http://www.windowsitpro.com/Article/...7133.html?Ad=1


--
Regards,
Andrei Ungureanu
www.eventid.net
Test our new EventReader!
http://www.altairtech.ca/eventreader...lt2.asp?ref=au


"StainlessSteelRat" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hi folks,
>
> I wanted to check the answers to some questions:
>
> Q1. Can DHCP server lease an address if this address already exists in the
> network and set manually? Or I should exclude statically This potentially
> may cause IP conflict and network failure.
>
> A1. My feeling is that a DHCP server will not check an address exists on
> the network. In this situation it's better to assign statically via MAC
> address, or exclude and assign manually at the PC.
>
> Q2. If one of the servers is down, what may happen?
>
> A2. The other server will pick up the requests.
>
> Q3. If both servers are down and every machine runs XP SP2 and has an
> alternative configuration, will it use the alternative configuration? And
> when it will acquire an address from DHCP?
>
> A3. It will only check the DHCP server on reboot.
>
> Q4. If both servers are available, which of them will be used for leasing
> an IP address?
>
> A4. The one that receives the address most quickly by the client, that is
> the entire process of offer, accept etc.
>
> Q5. As I know, primary and backup DHCP servers must have different scopes
> to avoid IP conflict. Is it true?
>
> A5. I'm not sure on this, is it possible for DHCP servers to work in
> conjunction with each other, knowing of each other's existence? I didn't
> think so, hence different scopes are required.
>
> Thanks
>

Andrei Ungureanu [MVP] wrote:
> I will correct only your first question as I'm running out of time
> today. I'll let the others help you the next questions.
>
> A1. you can set the DHCP server to check if the address already
> exists on the network by setting conflict detection.
> http://www.windowsitpro.com/Article/...7133.html?Ad=1

Thanks Andrei.