Solved

Cisco DHCP & Microsoft DNS, what command tells DHCP clients to register with DNS

Posted on 2014-10-06
10
495 Views
Last Modified: 2014-10-19
Is there a command within the IOS that tells DHCP clients to register with DNS & reverse DNS?
Cisco IOS Software, 2800 Software Version 12.4(25f), RELEASE SOFTWARE (fc2)
Cisco DHCP is only being utilized for the connecting VPN clients (PTPP)
Thank you for your time in advance.

-KB
0
Comment
Question by:K B
10 Comments
 
LVL 45

Assisted Solution

by:Craig Beck
Craig Beck earned 500 total points
Comment Utility
No.  That is something the MS DHCP server does.
0
 
LVL 37

Expert Comment

by:Bing CISM / CISSP
Comment Utility
if the DHCP server service is done by MS DHCP server, just configure its DHCP options for the client side settings.
0
 
LVL 42

Expert Comment

by:kevinhsieh
Comment Utility
Windows clients should automatically try to register with DNS. Otherwise, use Windows DHCP instead of Cisco DHCP.
0
 
LVL 5

Author Comment

by:K B
Comment Utility
Thanks for the reply..Any documentation?
0
 
LVL 21

Expert Comment

by:eeRoot
Comment Utility
0
Control application downtime with dependency maps

Visualize the interdependencies between application components better with Applications Manager's automated application discovery and dependency mapping feature. Resolve performance issues faster by quickly isolating problematic components.

 
LVL 45

Assisted Solution

by:Craig Beck
Craig Beck earned 500 total points
Comment Utility
Windows clients only update their DNS records via DHCP and then that's only if the DHCP server supports the DNS update function.  If the client uses a a Cisco DHCP service on a switch or router this won't work.
0
 
LVL 5

Author Comment

by:K B
Comment Utility
Craigbeck
That's the information I am looking for!
Is there any way to update DNS when DHCP is done on the Cisco device? Any way at all?

Do you have any documentation on this?

Thank you very much for your reply!
0
 
LVL 45

Assisted Solution

by:Craig Beck
Craig Beck earned 500 total points
Comment Utility
'Some' versions of IOS have the DHCP update dns feature, which is really only meant to be used in two scenarios...

1] Where you are wanting to update DDNS records using a DDNS provider
2] Where you're using the local IOS device as a DNS server.

Look at this guide...
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_dns/configuration/15-sy/dns-15-sy-book/dns-dyn-dns-supp-ios.html#GUID-397E7B02-B413-4BD5-AB62-96D3A808BB5B

You 'might' be able to try this by pointing the DNS config at your MS DHCP server and usually updates PTR records with no issue, but isn't successful at creating or updating A records at all.  This may be down to security permissions, and I wouldn't advise you change those on your MS DNS server unless you want to risk killing your AD!
0
 
LVL 5

Accepted Solution

by:
K B earned 0 total points
Comment Utility
Thank you for the information.  You answered my question.  My problem was solved by the VPN setup (pictured)
VPN-DNS-ISSUE.png
0
 
LVL 5

Author Closing Comment

by:K B
Comment Utility
was asking about how Cisco handled it.. my solution about the VPN setup
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

This article is a step by step guide on how to create a basic PTP link using Ubiquiti airOS devices. This guide can be used on the following Ubiquiti AirMAX devices. Nanostation, Bullets, AirBridge, Nanobeam, NanoBridge to name a few. Please review …
Let’s list some of the technologies that enable smooth teleworking. 
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

763 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

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now