DHCP Question. Advantage?

Hello,
A small company, 10 pcs, XP Pro Service Pack 2 pcs. SBS2000 server. Should I
permanently assign ip numbers to each pc? Is there an advantage to letting
the XP Pro pc get it's ip address resassigned? The setup involves the 2
network card setup in the server.
Thank you,
Smith

Kevin
Wed May 04 18:45:54 CDT 2005

there is no advantage gained by assigning static IP addresses to computers.
SBS comes with DHCP enabled, and allowing workstations to obtain their ip
address dynamically is the way I believe most people set up their SBS
servers.

However, for network devices, like networked printers, I do assign them
fixed IP addresses.

By default, SBS will reserve x.x.x.1 thru x.x.x.9 from DHCP services. I then
also reserve x.x.x.100 and above for printers and other devices.

--
Kevin Weilbacher [SBS-MVP]
"The days pass by so quickly now, the nights are seldom long"


"Smith" <smith@notarealaddress.org> wrote in message
news:I3dee.9411$tQ.6648@fed1read06...
> Hello,
> A small company, 10 pcs, XP Pro Service Pack 2 pcs. SBS2000 server. Should
> I permanently assign ip numbers to each pc? Is there an advantage to
> letting the XP Pro pc get it's ip address resassigned? The setup involves
> the 2 network card setup in the server.
> Thank you,
> Smith
>

Pat
Thu May 05 07:35:48 CDT 2005

The only gotcha that can occur with SBS doing DHCP is if an external device
is connected that has it's own DHCP.
This then kills the SBS DHCP and the workstations will loose their IP's when
they fail to renew.
I've had a couple of laptops do that on my network. Didn't get a chance to
see what they where running that caused it but it clearly happened. (had an
event message indicating a second DHCP seen on the network so SBS DHCP had
stopped)

"Kevin Weilbacher [SBS-MVP]" <kweilbacMVP@gte.net> wrote in message
news:O%23gtJNQUFHA.2892@TK2MSFTNGP14.phx.gbl...
> there is no advantage gained by assigning static IP addresses to
> computers. SBS comes with DHCP enabled, and allowing workstations to
> obtain their ip address dynamically is the way I believe most people set
> up their SBS servers.
>
> However, for network devices, like networked printers, I do assign them
> fixed IP addresses.
>
> By default, SBS will reserve x.x.x.1 thru x.x.x.9 from DHCP services. I
> then also reserve x.x.x.100 and above for printers and other devices.
>
> --
> Kevin Weilbacher [SBS-MVP]
> "The days pass by so quickly now, the nights are seldom long"
>
>
> "Smith" <smith@notarealaddress.org> wrote in message
> news:I3dee.9411$tQ.6648@fed1read06...
>> Hello,
>> A small company, 10 pcs, XP Pro Service Pack 2 pcs. SBS2000 server.
>> Should I permanently assign ip numbers to each pc? Is there an advantage
>> to letting the XP Pro pc get it's ip address resassigned? The setup
>> involves the 2 network card setup in the server.
>> Thank you,
>> Smith
>>
>
>

Marina
Thu May 05 08:31:28 CDT 2005

Hi Pat,

If you are running with 2 nics in the server, you can have a router with
DHCP on the external nic without a problem.

--
Regards,

Marina Roos
Microsoft SBS-MVP
One of the Magical M&M's
www.smallbizserver.net
"Pat Horridge" <pat@remove-spam.vet.co.uk> schreef in bericht
news:d5d3p7$j3c$1$8302bc10@news.demon.co.uk...
> The only gotcha that can occur with SBS doing DHCP is if an external
device
> is connected that has it's own DHCP.
> This then kills the SBS DHCP and the workstations will loose their IP's
when
> they fail to renew.
> I've had a couple of laptops do that on my network. Didn't get a chance to
> see what they where running that caused it but it clearly happened. (had
an
> event message indicating a second DHCP seen on the network so SBS DHCP had
> stopped)
>
> "Kevin Weilbacher [SBS-MVP]" <kweilbacMVP@gte.net> wrote in message
> news:O%23gtJNQUFHA.2892@TK2MSFTNGP14.phx.gbl...
> > there is no advantage gained by assigning static IP addresses to
> > computers. SBS comes with DHCP enabled, and allowing workstations to
> > obtain their ip address dynamically is the way I believe most people set
> > up their SBS servers.
> >
> > However, for network devices, like networked printers, I do assign them
> > fixed IP addresses.
> >
> > By default, SBS will reserve x.x.x.1 thru x.x.x.9 from DHCP services. I
> > then also reserve x.x.x.100 and above for printers and other devices.
> >
> > --
> > Kevin Weilbacher [SBS-MVP]
> > "The days pass by so quickly now, the nights are seldom long"
> >
> >
> > "Smith" <smith@notarealaddress.org> wrote in message
> > news:I3dee.9411$tQ.6648@fed1read06...
> >> Hello,
> >> A small company, 10 pcs, XP Pro Service Pack 2 pcs. SBS2000 server.
> >> Should I permanently assign ip numbers to each pc? Is there an
advantage
> >> to letting the XP Pro pc get it's ip address resassigned? The setup
> >> involves the 2 network card setup in the server.
> >> Thank you,
> >> Smith
> >>
> >
> >
>
>

Steve
Sat May 07 15:34:50 CDT 2005

Marina Roos [SBS-MVP] wrote:

> Hi Pat,
>
> If you are running with 2 nics in the server, you can have a router with
> DHCP on the external nic without a problem.

As long as SBS is correctly configured.

--
Steve Foster [SBS MVP]
---------------------------------------
MVPs do not work for Microsoft. Please reply only to the newsgroups.

Pat
Wed May 18 11:34:57 CDT 2005

I only have a single NIC SBS ( I use an external Firebox and have no need
for web access reports etc)
The 2 times my SBS DHCP was killed where both with laptops connected.
They seemd to be running some sort of software on their ethernet connector
that acted as a DHCP server.
Both time the connecting of the laptop caused my SBS DHCP to stop and then
workstations to start falling over as their IPs expired.
The laptop had left site by then and there was no DHCP running on the
network at all.
Managed to prove it the second time it happened as the laptop was still here
(a clients unit) and I was able to see it happen.
It would be nice if the DHCP server tried to restart every hour or once a
day.

"Marina Roos [SBS-MVP]" <marina@roos.nodontwantspam.nl.com> wrote in message
news:Oo6DBbXUFHA.1152@tk2msftngp13.phx.gbl...
> Hi Pat,
>
> If you are running with 2 nics in the server, you can have a router with
> DHCP on the external nic without a problem.
>
> --
> Regards,
>
> Marina Roos
> Microsoft SBS-MVP
> One of the Magical M&M's
> www.smallbizserver.net
> "Pat Horridge" <pat@remove-spam.vet.co.uk> schreef in bericht
> news:d5d3p7$j3c$1$8302bc10@news.demon.co.uk...
>> The only gotcha that can occur with SBS doing DHCP is if an external
> device
>> is connected that has it's own DHCP.
>> This then kills the SBS DHCP and the workstations will loose their IP's
> when
>> they fail to renew.
>> I've had a couple of laptops do that on my network. Didn't get a chance
>> to
>> see what they where running that caused it but it clearly happened. (had
> an
>> event message indicating a second DHCP seen on the network so SBS DHCP
>> had
>> stopped)
>>
>> "Kevin Weilbacher [SBS-MVP]" <kweilbacMVP@gte.net> wrote in message
>> news:O%23gtJNQUFHA.2892@TK2MSFTNGP14.phx.gbl...
>> > there is no advantage gained by assigning static IP addresses to
>> > computers. SBS comes with DHCP enabled, and allowing workstations to
>> > obtain their ip address dynamically is the way I believe most people
>> > set
>> > up their SBS servers.
>> >
>> > However, for network devices, like networked printers, I do assign them
>> > fixed IP addresses.
>> >
>> > By default, SBS will reserve x.x.x.1 thru x.x.x.9 from DHCP services. I
>> > then also reserve x.x.x.100 and above for printers and other devices.
>> >
>> > --
>> > Kevin Weilbacher [SBS-MVP]
>> > "The days pass by so quickly now, the nights are seldom long"
>> >
>> >
>> > "Smith" <smith@notarealaddress.org> wrote in message
>> > news:I3dee.9411$tQ.6648@fed1read06...
>> >> Hello,
>> >> A small company, 10 pcs, XP Pro Service Pack 2 pcs. SBS2000 server.
>> >> Should I permanently assign ip numbers to each pc? Is there an
> advantage
>> >> to letting the XP Pro pc get it's ip address resassigned? The setup
>> >> involves the 2 network card setup in the server.
>> >> Thank you,
>> >> Smith
>> >>
>> >
>> >
>>
>>
>
>

Steve
Wed May 18 12:39:58 CDT 2005

Pat Horridge wrote:

> I only have a single NIC SBS ( I use an external Firebox and have no need
> for web access reports etc)
> The 2 times my SBS DHCP was killed where both with laptops connected.
> They seemd to be running some sort of software on their ethernet
connector
> that acted as a DHCP server.
> Both time the connecting of the laptop caused my SBS DHCP to stop and
then
> workstations to start falling over as their IPs expired.
> The laptop had left site by then and there was no DHCP running on the
> network at all.
> Managed to prove it the second time it happened as the laptop was still
here
> (a clients unit) and I was able to see it happen.
> It would be nice if the DHCP server tried to restart every hour or once a
> day.
>

Probably XP ICS (Internet Connection Sharing). So that they can dial-up to
the internet, or plug in a USB ADSL device, and share it with another PC
via the laptop's network port.

You could use the service failure options to force SBS to restart the DHCP
service automatically (look at the Recovery tab in the service Properties
dialog from the Services MMC), but if a laptop is on for several hours,
this is going to be slightly messy. You could configure a Monitoring Alert
if the DHCP Service fails, so that you're emailed when it happens - giving
you the opportunity to diagnose at the time (rather than post-mortem
style). You could combine the two, so that DHCP keeps restarting *and* you
get notified.

It'd be nice if the SBS team just removed this stupid "feature", or at
least made it optional.

--
Steve Foster [SBS MVP]
---------------------------------------
MVPs do not work for Microsoft. Please reply only to the newsgroups.

Pat
Tue May 24 07:58:27 CDT 2005

Thanks Steve I'll look into that when I get a chance.
As you know our SBS prety much runs it's self most of the time.

"Steve Foster [SBS MVP]" <steve.foster@picamar.co.uk> wrote in message
news:xn0e2ejnh2v2gdp00p@msnews.microsoft.com...
> Pat Horridge wrote:
>
>> I only have a single NIC SBS ( I use an external Firebox and have no need
>> for web access reports etc)
>> The 2 times my SBS DHCP was killed where both with laptops connected.
>> They seemd to be running some sort of software on their ethernet
> connector
>> that acted as a DHCP server.
>> Both time the connecting of the laptop caused my SBS DHCP to stop and
> then
>> workstations to start falling over as their IPs expired.
>> The laptop had left site by then and there was no DHCP running on the
>> network at all.
>> Managed to prove it the second time it happened as the laptop was still
> here
>> (a clients unit) and I was able to see it happen.
>> It would be nice if the DHCP server tried to restart every hour or once a
>> day.
>>
>
> Probably XP ICS (Internet Connection Sharing). So that they can dial-up to
> the internet, or plug in a USB ADSL device, and share it with another PC
> via the laptop's network port.
>
> You could use the service failure options to force SBS to restart the DHCP
> service automatically (look at the Recovery tab in the service Properties
> dialog from the Services MMC), but if a laptop is on for several hours,
> this is going to be slightly messy. You could configure a Monitoring Alert
> if the DHCP Service fails, so that you're emailed when it happens - giving
> you the opportunity to diagnose at the time (rather than post-mortem
> style). You could combine the two, so that DHCP keeps restarting *and* you
> get notified.
>
> It'd be nice if the SBS team just removed this stupid "feature", or at
> least made it optional.
>
> --
> Steve Foster [SBS MVP]
> ---------------------------------------
> MVPs do not work for Microsoft. Please reply only to the newsgroups.

Steve
Tue May 24 08:32:08 CDT 2005

Pat Horridge wrote:

> Thanks Steve I'll look into that when I get a chance.
> As you know our SBS prety much runs it's self most of the time.
>

Most properly installed SBS servers *should* run themselves most of the
time. At least that's the case with mine... <g>

--
Steve Foster [SBS MVP]
---------------------------------------
MVPs do not work for Microsoft. Please reply only to the newsgroups.