DHCP on Router relay Leases to Windows Server 2008 R2 DNS


I have a Sonicwall TZ 100 configured as a DHCP server and a Windows Server 2008 R2 configured to be a DNS server.  I would like to keep the DHCP server on the router instead of configuring it on the Windows Server.

Currently, the leases on the TZ 100 router are not being relayed to the Windows Server 2008 R2 DNS server and therefore the DNS server is not able to resolve computers on the LAN.  How do I configure the DHCP on the router and DNS on the Windows Server to work together?

Thank you for your help!
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

provided your windows clients are aware that the win2k8R2 server is the dns server, they should be registering themselves via dns.

ensure that you dont have your DHCP server handing out your router's ip address as the DNS server, and then it has its own dns server set to your windows 2k8R2 server.

you can test this by checking to see where the DNS server is on one of your client computers. start > cmd > nslookup on one of your workstations provide you with the default server name.

if it is the windows2k8R2 server try running "ipconfig /registerdns" from the commandline. it will register your DNS records into the DNS server, and print out errors into your event log.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Krzysztof PytkoSenior Active Directory EngineerCommented:
Make sure that you have configured DNS servers list option on your router's DHCP configuration (this should be option no 006). Put there IP address of your W2K8R2 DNS server. After that you need to configure Forwarders on your 2008R2 DNS server to be able to access the Internet resources. On Forwarders list put IP address of DNS servers of your ISP or any publicly available like Google ( and/or then everything should work fine

It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.