Microsoft Nps Radius Portsmouth
Microsoft Nps Radius
Radius Accounting Port
Microsoft Nps Radius Ports

This is the encryption key used for the handshake between Controller and NPS, and should be of high complexity. The standard port for RADIUS is 1812, and this is what NPS uses out of the box. Notably, make sure the RADIUS assigned VLAN options are checked so that you can specify VLANs based on policy in the NPS server.
The following 3 steps are the most efficient way to deploying Network Device Management with RADIUS Authentication using Windows NPS Server. Download the eBook to get you started under 5 minutes. This simply works for Cisco and HP Network Devices.

Many times I came across one issue… how to grant access to CLI (Command Line Interface) on Cisco devices without creating separate username and password for each user on each device? In order to resolve that I did use AAA features of Cisco IOS and built-in Windows Server 2008 R2 component – NPS (Network Policy Server).

Those two mixed together can create very nice environment which allows flexible management who, when and how can access network devices. Same time, Active Directory will be central place to grant or deny access to devices as well as enforce specific privilege level.

Network Policy Server (NPS) is the Microsoft implementation of a Remote Authentication Dial-in User Service (RADIUS) server and proxy. As a RADIUS server, NPS performs centralized authentication and authorization for wireless devices, and it authorizes switch, remote access dial-up, and virtual private network (VPN) connections. Open NPS on the Server, right click on RADIUS Clients and Servers and Select New and fill in the information using your switch IP address as the Address (IP or DNS), and yourradiussecret which you stated earlier in the switch configuration. Configure the NPS Network Policy. Again in NPS, Right click on Network Policies and Select New.

Below is simple diagram of the whole process and steps which take place when accessing Cisco device integrated with NPS/RADIUS.

What happenes when accesing router integrated with RADIUS:

Operation initiates SSH or Telnet connection to device and enters credentials (username/password)
Cisco router checks local database for username and password
Once credentials found in local database operator has access to command line on router
If credentials not present in local database then request for authentication and authorization is forwarded to RADIUS
RADIUS checks credentials and group membership with Domain Controller
If user is member of Network-Admins or Network-Support group access to CLI is granted and Operator can access router, otherwise Operator can’t access Cisco router

Let’s see how to configure whole solution step-by-step…

NPS integration with Cisco will deliver solution which will allow to authenticate and authorize access to Cisco devices Command Line Interface (CLI) with Active Directory credentials. In addition to that, privilege level will be detemined and enforced based on Active Directory group membership.

Actions which will be taken:

Microsoft Nps Radius Portsmouth

Appropriate groups will be created in Active Directory
- Network-Admins – for users which will have privilege 15 access to Cisco devices
- Network-Support – for users which will have privilege 1 access to Cisco devices
Microsoft NPS Role will be added to Windows Server 2008 R2
Network Policies will be created on NPS/RADIUS
Cisco router will be added to NPS/RADIUS as client
Appropriate configuration will be applied to Cisco router

First step is to install NPS on Windows Server 2008 R2. in order to do that Server Manager has to be used. In Server Manager right-clik on Roles and choose Add Roles from context menu.

On Before You Begin screen click Next to proceed to Role selection screen.

On Roles list locate Network Policy and Access Services, make sure that checkbox on the left side of that role is checked and click Next to proceed to next installation screen.

Next screen is Introduction to Network Policy and Access Services. Click Next to proceed to Role Services selection screen.

On Select Role Service screen make sure that Network Policy Server checkbox is checked and click Next to proceed to installation summary screen.

On Confirm Installation Selections screen review if Network Policy Server is shown on the list of services for installation and if everythign is correct click Install to proceed with installation and add new Role to system.

Once all components for new role are installed in the system you will see Installation Results screen where you can find indication if whole process went well ot some errors occured. Once everything went well click Close button.

Now you can go to Start / Administrative Tools and find Network Policy Server icon which has been recently added to system as the effect of new role isntallation. Click that to start NPS management console.

Beckman biomek fx. Once you will start NPS management console you can see that one of the components of NPS is RADIUS. This is service we will need and use to provide authentication and authorization to Cisco devices basec on Active Directory credentials and group membership.

First we have to register Network Policy Server in Active Directory to allow authentication based on user accounts we created in domain.

To authorize NPS in AD:

Logon to server with NPS using account with domain admin credentials.
Go to Start / Administrative Tools and then click Network Policy Server.
Right-click on NPS (Local) and from context menu click Register server in Active Directory.

Confirm that you want to authorize this computer (server with NPS) to access users’ dial-in properties by clicking OK in Network Policy Server dialog window. Make sure that authorization will happen in correct domain as per indication in message from system.

When operation will be completed with success notification confirmation iwll show on the screen that this computer is now authorized to read users’ dial-in properties from domain.

For everyone who likes to reconfigure servers from Command Prompt here is how to add NPS to default AD domain:

Log on to the NPS server using account with domain admin credentials.
Open Command Prompt.
In CMD window type: netsh ras add registeredserver
Then press ENTER.

Now it’s time to inform NPS/RADIUS about our router and establish shared secred as form of identification when router will be requesting authentication and authorization from RADIUS and Active Directory.

To add router as RADIUS client:

Logon to server with NPS using account with admin credentials.
Go to Start / Administrative Tools and then click Network Policy Server.
Expand RADIUS Client and Servers.
Right-click on RADIUS Clients and click New from context menu.

In New RADIUS Client window Settings tab enter:

Friendly name of the router – name to recognize router, usually same as hostname.
Address (IP and DNS) – IP address of the router or hostname – if hostname used proper hostname needs to be registered in DNS prior to RADIUS configuration.
Shared secret – passphrase which was configured on router which will allow to identify router when requesting AAA from RADIUS.

In New RADIUS Client window Advanced tab enter:

Vendor name – Cisco – as in this example Cisco router will communicate with RADIUS.

Once confirmed with OK we will see that router has been added to RADIUS configuration as client.