Solved

Will Disabling DHCP Server on 2 Wire Router disable firewall protection?

Posted on 2006-10-21
3
626 Views
Last Modified: 2008-01-09
We just switched to a new carrier for our DSL internet service and they are suggesting that we change the way we have our DHCP setup.  Before switching, we had the following setup: the DHCP server was disabled on NetGear router and DHCP was enabled on Small Business Server 2003.  

Now, we have an 2 Wire integrated modem and router.  Tech support at 2 Wire is now telling me that I need to enable the DHCP server function on the 2 Wire Router otherwise I will disable the firewall and other protection functions of the router.  All the logs that I have read on this site tell me the best way to good is disable DHCP server on the router and have it only enabled on our SBS server.  What should I do?

Currently, both the 2 wire router and SBS server are setup as the DHCP server, so any new computer which I put on the network is not able to access the internet until I unplug the server from the network and allow the router to serve up the IP address.  In reading some of the logs it sounds like if SBS 2003 detects another DHCP server it will disable its own service, however, that does not appear to be the case for me.

Thanks for your help.
0
Comment
Question by:r_may
3 Comments
 
LVL 8

Accepted Solution

by:
nitadmin earned 500 total points
ID: 17781222
"Tech support at 2 Wire is now telling me that I need to enable the DHCP server function on the 2 Wire Router otherwise I will disable the firewall and other protection functions of the router."

This statement is ---------. You can fill in the blank youself!

You can not have two DHCP servers on the same subnet. This will create problems which you describe above.

I would keep the DHCP service running on your Windows 2003 Small Business Server and I would disable the DHCP server on the Router. Turning off the DHCP server on the router will has no effect on the "firewall and other protection functions of the router." The only function of DHCP is to lease out IP addresses. The tech support person at 2 wire does not know what he talking about.

Cheers,
NITADMIN
0
 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 17781481
I totally agree here... although I really don't care much for the 2Wire routers.  They are generally used for residential installs only.

But if that's what you have to work with, then just turn off DHCP and you'll be fine.

Jeff
TechSoEasy
0
 

Author Comment

by:r_may
ID: 17785642
Thanks for your help.
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In the event you manage a Small Business Server 2003, and you are audited for PCI compliance, there are several changes you must make in order to pass the audit. I can take no credit for discovering any of these fixes or workarounds, but there is no…
The articles for turning off the Client firewall policy on the internet are for SBS 2008 and don't really help for SBS 2011. They actually moved the Client firewall policy. In 2011, the client firewall policy has moved to the SBS computers conta…
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…
How to Install VMware Tools in Red Hat Enterprise Linux 6.4 (RHEL 6.4) Step-by-Step Tutorial

680 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question