DHCP server behavior

Hi,
In Windows server 2003, assume a connection session is in place and the
remote
host's IP is assigned by a DCHP server. What would happen if the DHCP server
wants to assign a new IP to the remote host?
Will the connection end? or,
Will the server wait till the connection is gracefully ended by the user and
then assign a new IP to the remote host?

Thanks
Yba

Hello Yba,

The DHCP server never assigns a new address from itself. The client makes
the request for a new lease after the half lease time.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Hi,
> In Windows server 2003, assume a connection session is in place and
> the
> remote
> host's IP is assigned by a DCHP server. What would happen if the DHCP
> server
> wants to assign a new IP to the remote host?
> Will the connection end? or,
> Will the server wait till the connection is gracefully ended by the
> user and
> then assign a new IP to the remote host?
> Thanks
> Yb

When the client makes a request, will the IP change take effect while a
connection is in place?

Regards
Yba

"Meinolf Weber [MVP-DS]" wrote:

> Hello Yba,
>
> The DHCP server never assigns a new address from itself. The client makes
> the request for a new lease after the half lease time.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>
> > Hi,
> > In Windows server 2003, assume a connection session is in place and
> > the
> > remote
> > host's IP is assigned by a DCHP server. What would happen if the DHCP
> > server
> > wants to assign a new IP to the remote host?
> > Will the connection end? or,
> > Will the server wait till the connection is gracefully ended by the
> > user and
> > then assign a new IP to the remote host?
> > Thanks
> > Yba
>
>
> .
>

In message <B0DCAC2C-90C2-4E53-BC5C-> Yba
<> was claimed to have wrote:

>Hi,
>In Windows server 2003, assume a connection session is in place and the
>remote
>host's IP is assigned by a DCHP server. What would happen if the DHCP server
>wants to assign a new IP to the remote host?
>Will the connection end? or,
>Will the server wait till the connection is gracefully ended by the user and
>then assign a new IP to the remote host?

At 50% of the lease's expiry, the client will attempt to renew. At this
stage all the server can do is renew or not, it's not possible to issue
a new IP.

The client will continue trying over and over more aggressively until
the lease expires, at which time the client will request a new lease
rather than requesting a renewal, at this time the DHCP server can offer
a new lease the client and the client can then accept that offer.

There is no "wait till the connection" because from the DHCP side of
things there is no "connection" to start or end.

Hello Yba,

If the lease is active there will no replace normally with another ip address,
never seen this. So if the lease is active it will be renewed. And the connection
will stay. See my answer to your previous posting, "DHCP client" about configuring
Remote desktop.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> When the client makes a request, will the IP change take effect while
> a connection is in place?
>
> Regards
> Yba
> "Meinolf Weber [MVP-DS]" wrote:
>
>> Hello Yba,
>>
>> The DHCP server never assigns a new address from itself. The client
>> makes the request for a new lease after the half lease time.
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers
>> no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> Hi,
>>> In Windows server 2003, assume a connection session is in place and
>>> the
>>> remote
>>> host's IP is assigned by a DCHP server. What would happen if the
>>> DHCP
>>> server
>>> wants to assign a new IP to the remote host?
>>> Will the connection end? or,
>>> Will the server wait till the connection is gracefully ended by the
>>> user and
>>> then assign a new IP to the remote host?
>>> Thanks
>>> Yba
>> .
>>