?
Solved

NPS as DHCP

Posted on 2014-11-07
9
Medium Priority
?
293 Views
Last Modified: 2014-11-11
I am small ISP and I have a working NPS Radius server who is controlling my DSL subscribers. Can I make the NPS server to relay ip addresses to my subscribers DSL modem ?
0
Comment
Question by:soffcec
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 4
9 Comments
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40430097
Yes, just install the DHCP role and configure.  If you have routers between your clients and the NPS you'll need to configure a relay agent on the router that clients connect to.
0
 

Author Comment

by:soffcec
ID: 40430160
I have many routers between and they are not all mine. How do i configure ?
0
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40430169
Your DSLAM can probably do it.  Configure a DHCP relay (or IP helper as it may be called) on the DSLAM which points to the IP of your NPS server.
0
Office 365 Training for IT Pros

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.

 

Author Comment

by:soffcec
ID: 40430180
Well, I have no access to the Dslam, I only hire access thru them. I own the backbone router and the DSL modems but the dslams are owned and runned by another company who also own the copper wire.

But as NPS can manually assign an ip address to the modem thru Dial In tab in AD, is it not possible to assign DNS ip addresses ?
0
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40430371
You can assign DNS via RADIUS (NPS) but it's not that easy.  Perhaps a bit of an overview of how the client's traffic gets from their router to your NPS would help.

Is the DSLAM pointing at your NPS when a client attempts to connect their DSL router?  If so, do you know the manufacturer?
0
 

Author Comment

by:soffcec
ID: 40430408
How can I assign DNS via NPS ?
0
 
LVL 46

Expert Comment

by:Craig Beck
ID: 40430431
Using vendor attributes... hence asking...

Is the DSLAM pointing at your NPS when a client attempts to connect their DSL router?  If so, do you know the manufacturer?
0
 

Author Comment

by:soffcec
ID: 40430454
I don´t know the manufacture of the Dslam.

What I do now is:
I connect router and get DSL sync. Then I enter my username@domain.dot and my password for PPPoE dial in.
After that BBRAS (owned by the other company) ask RADIUS(owned by the other company) which ISP is the owner of this @domain.dot
Next the LNS(owned by the other company) asks my RADIUS(NPS) if the user is allowed. My RADIUS answers with ip address who has been set in the Dial Up tab on the AD and then my router can talk to my backbone router and go to the internet but without DNS.
0
 
LVL 46

Accepted Solution

by:
Craig Beck earned 2000 total points
ID: 40431509
Ok, so let's assume the LNS is a Cisco box.

In the NPS access policy you need to add a Cisco AV-Pair in the settings tab so that the DNS servers are passed to the LNS, which will then tell the client.

cisco-avpair = "ip:dns-servers=8.8.8.8 4.2.2.2"

NPS Cisco AV-Pair
0

Featured Post

Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

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

Here's a look at newsworthy articles and community happenings during the last month.
Microsoft Office 365 is a subscriptions based service which includes services like Exchange Online and Skype for business Online. These services integrate with Microsoft's online version of Active Directory called Azure Active Directory.
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…
In this Micro Tutorial viewers will learn how to restore their server from Bare Metal Backup image created with Windows Server Backup feature. As an example Windows 2012R2 is used.
Suggested Courses

770 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