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Re: DHCP on router or server

 
 
James Hurrell
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      12-14-2009

On 14/12/2009 17:28, Pabs wrote:
> Hi, typically the SBS server would be handing out DHCP addresses.
> However I'm wondering if the router should be the one handing out DHCP
> addresses. For example, a colleague of mine had their SBS 2003 server
> go down due to a hardware issue. Now no one in the office can access
> the Internet. If the router was the DHCP server, I believe they'd
> have Internet access right now from their workstations. Any thoughts
> or experiences on this? Thanks.


The other replies all make very valid points and you should definitely
use the SBS DHCP server. However, as you suggest, when SBS is down, no
body can access the internet at all due to the fact that when using the
SBS DHCP server, it will hand out itself as the DNS server (as it
rightly should). Thus, no DNS server, no internet. This is my real-world
experience when I had a main board fail on me.

In that situation, I temporarily enabled our edge router's DHCP server
configured to hand out the OpenDNS DNS server IP addresses and internet
was back on (after a workstation reboot to get new IP address and
lease). I also temporarily set up a NAS drive to hold the various shared
data (from the SBS backup) so that at least some work could be done
while the server was repaired.
 
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