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Aruba controller authentication on Windows 2012 R2 RADIUS server fails

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Aruba support says the configuration of Aruba controller and the Windows server is correct. Yet authentication fails when using MS CHAPv2. I am out of ideas, below is the security log entrees from an authentication attempt.

An account failed to log on.

Subject:

               Security ID:                           SYSTEM

               Account Name:                    KALE$

               Account Domain:                 DOMAIN

               Logon ID:                              0x3E7

Logon Type:                                         3

Account For Which Logon Failed:

               Security ID:                           NULL SID

               Account Name:                    username

               Account Domain:                 DOMAIN

Failure Information:

               Failure Reason:                     Unknown user name or bad password.

               Status:                                   0xC000006D

               Sub Status:                           0xC000006A

Process Information:

               Caller Process ID:  0x3ac

               Caller Process Name:          C:\Windows\System32\svchost.exe

Network Information:

               Workstation Name:             

               Source Network Address:    -

               Source Port:                         -

Detailed Authentication Information:

               Logon Process:                    IAS

               Authentication Package:     MICROSOFT_AUTHENTICATION_PACKAGE_V1_0

               Transited Services:               -

               Package Name (NTLM only):             -

               Key Length:                          0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.

               - Transited services indicate which intermediate services have participated in this logon request.

               - Package name indicates which sub-protocol was used among the NTLM protocols.

               - Key length indicates the length of the generated session key. This will be 0 if no session key was requested.

Network Policy Server denied access to a user.

Contact the Network Policy Server administrator for more information.

User:

               Security ID:                                           NULL SID

               Account Name:                                    username

               Account Domain:                                 DOMAIN

               Fully Qualified Account Name:          DOMAIN \ username

Client Machine:

               Security ID:                                           NULL SID

               Account Name:                                    -

               Fully Qualified Account Name:          -

               OS-Version:                                          -

               Called Station Identifier:                     001A1E00F390

               Calling Station Identifier:                    0.0.0.0

NAS:

               NAS IPv4 Address:                               172.19.1.48

               NAS IPv6 Address:                               -

               NAS Identifier:                                      Blizzard

               NAS Port-Type:                                    Wireless - IEEE 802.11

               NAS Port:                                              0

RADIUS Client:

               Client Friendly Name:                         Blizzard

               Client IP Address:                                172.19.1.48

Authentication Details:

               Connection Request Policy Name:     Secure Wireless Connections new

               Network Policy Name:                        -

               Authentication Provider:                    Windows

               Authentication Server:                        kale.ad. DOMAIN.edu

               Authentication Type:                           MS-CHAPv2

               EAP Type:                                              -

               Account Session Identifier:                -

               Logging Results:                                  Accounting information was written to the SQL data store and the local log file.

               Reason Code:                                       16

               Reason:                                                 Authentication failed due to a user credentials mismatch. Either the user name provided does not map to an existing user account or the password was incorrect.


Questions on Trust between Windows 2003 and Windows 2012 R2

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Hi Experts,

One of our customer raised the below question:

Environment:

Forest A - Forest functional level - Windows 2003

Forest B - Forest functional level - Windows 2003

Two way trust in place.

Requirement:

Customer wants to upgrade both the forests to Windows 2012 R2 forest functional level.

Question:

1. What are the best practices?

2. Is it good to keep the trust until both the forests are upgraded to Windows 2012 R2?

Please help.  Many thanks.



ISP

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Hi guys

I have a project in my university about Internet Service provider :

1-what is the routing protocol I have to use?

2-how ISP authenticating client?

3-how ISP accounting client?

4-what kind of authentication I have to make(radius server for DHCP or radius server for wired connection or IPsec)

Thanks

NPS not working after migrating from 2008R2 to 2012R2

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     We have a 2008R2 domain that is being upgraded to 2012R2. We use NPS as a RADIUS server for our wireless, and it runs on a few of our domain controllers. I know that might not be best practice, and we will probably change that next summer, but it has always worked fine.  I have migrated the NPS database before from 2008R2 to 2008R2 DCs and not had any problems. 

     I migrated the NPS database from a 2008R2 DC to a new 2012 DC and it looks like everything came across fine.  I can see my policies, certificates, and radius clients there, but it is failing.  The NPS server role filter on the event logs shows event ID 6272 showing it is granting access, but I am not getting the 6278 event ID that I normally also get.  I am not seeing any errors.  I look through the IAs log and hard to decipher. Does anyone have any ideas or can point me to a good troubleshooting site for this?

     <Event><Timestamp data_type="4">07/29/2016 10:52:45.101</Timestamp><Computer-Name data_type="1">DC-ALPHA</Computer-Name><Event-Source data_type="1">IAS</Event-Source><NAS-IP-Address data_type="3">10.124.30.50</NAS-IP-Address><NAS-Port data_type="0">0</NAS-Port><NAS-Identifier data_type="1">10.122.50.50</NAS-Identifier><NAS-Port-Type data_type="0">19</NAS-Port-Type><Calling-Station-Id data_type="1">34028684D672</Calling-Station-Id><Called-Station-Id data_type="1">000B86B7354F</Called-Station-Id><Service-Type data_type="0">2</Service-Type><Framed-MTU data_type="0">1100</Framed-MTU><Vendor-Specific data_type="2">000039E70507475245454E</Vendor-Specific><Vendor-Specific data_type="2">000039E706104141412D477265656E2D54657374</Vendor-Specific><Vendor-Specific data_type="2">000039E70A0C41646D696E2D54657374</Vendor-Specific><Vendor-Specific data_type="2">000039E70C0957696E646F7773</Vendor-Specific><Client-IP-Address data_type="3">10.122.50.50</Client-IP-Address><Client-Vendor data_type="0">0</Client-Vendor><Client-Friendly-Name data_type="1">Dallas-7205</Client-Friendly-Name><User-Name data_type="1">host/LT-150431.contoso.com</User-Name><Proxy-Policy-Name data_type="1">Use Windows authentication for all users</Proxy-Policy-Name><Provider-Type data_type="0">1</Provider-Type><SAM-Account-Name data_type="1">CONTOSO_DOMAIN\LT-150431$</SAM-Account-Name><Class data_type="1">311 1 10.124.66.4 07/26/2016 02:22:19 23644</Class><NP-Policy-Name data_type="1">Authenticate Computers (computer role)</NP-Policy-Name><Authentication-Type data_type="0">11</Authentication-Type><Class data_type="1">computer</Class><Fully-Qualifed-User-Name data_type="1">contoso.com/Workstations/Wireless Laptops/LT-150431</Fully-Qualifed-User-Name><Packet-Type data_type="0">1</Packet-Type><Reason-Code data_type="0">0</Reason-Code></Event>

Thanks,


Dave






DirectAccess broken after P2V

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We broke DA by V2V'ing our computer. Now we're getting an Event 20282 when trying to start DirectAccess. I see that the previous NIC is ghosted and still there. Is there some way to swing IPv4 forwarding to our new NIC? The new NIC ID is {43DACD72-28CB-4851-8AC1-D35C89469A5A}.

Log Name:      System
Source:        RemoteAccess
Date:          8/23/2016 11:26:54 AM
Event ID:      20282
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      DirectAccess.[redacted]
Description:
Failed to enable IPv4 forwarding on interface 053B8876-60D5-407D-99BB-D346638B8392 with error: Element not found.
.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="RemoteAccess" />
    <EventID Qualifiers="0">20282</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2016-08-23T15:26:54.000000000Z" />
    <EventRecordID>228914</EventRecordID>
    <Channel>System</Channel>
    <Computer>DirectAccess.ffyi.int</Computer>
    <Security />
  </System>
  <EventData>
    <Data>053B8876-60D5-407D-99BB-D346638B8392</Data>
    <Data>Element not found.
</Data>
  </EventData>
</Event>

Policies in NPS

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Can a NPS actually hold two different policies?

Like for 802.1x for wireless and 802.1x for wired network. Or a NPS can only hold one policy, so i need to install the NPS feature in different server?

Thank you.

Can NPS force computer AND user authentication?

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Hi,

I have a fully functional 802.1X using Cisco WLAN with Microsoft NPS.  It currently is capable of domain authentication against security groups on AD.  

On NPS I have two separate network policies, one for computer and the other for user.  This is fine, but the policy works sequentially as an OR statement rather than an AND statement.

So at the moment, a device with a valid user certificate logon can be from an invalid computer. I'm looking to ensure that the user is on a domain computer in the correct security group.

Anyone implemented this in a way that machine authentication is a prerequisite to user authentication?

Regards
Rob

p.s. I have setup this previously with Cisco ACS using the 'Machine Access Restrictions' feature.

strange IP addresses in tcpview

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I just installed a new server (2012r2) with SQL Server 2012 and endpoint protection antivirus.  I was trying to install the first app to a client machine and it kept telling me that the server wasn't responding.  netstat told me the port was listening.  I loaded TCPView.  Here I saw the same IP address (169.254.50.125) connected to several different PIDs in the local and remote column.  On several it said the connection had been established.  Does anyone know this weird address.  I did a whois and it told me it was a reserved IANA address.  It seems my app is being shipped out to this address.  anyone know if this is some form of malware.  Most of the port information looks correct, but other point outside.  this is the same IP address that I am getting in my error message on my app

Doesn't working Windows firewall rule and the snup-in "Allow an app through Windows firewall"

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Hello all.
I have the problem. And I want to ask you 2 questions, please.
On a remote server with Windows Server 2012R2 EventLog began to appear "Failure Audit". IP addresses are different every day, but in a lot of matches throughout the day.
I wrote a ps script that collects the data for the day and adds "bad" IP addresses to the scope of inboung firewall rule named as "BAD_Guys". 

This rule has block action.
The default behavior for any inbound profile is "Block".

But in spite of this rule - I continue to observe the appearance of failure audit from bad IP addresses that are listed in the rule "BAD_guys."
This is the first question - Why it can continue occure? Why inbound connections from blocked IP addresses still continues?

Then, I accidentally wandered into a snap-in Control Panel \ System and Security \ Allow an app through Windows firewall. As I understood this list shows allowed applications for remote accessing. In this list there is a mine rule (BAD_Guys) and it is marked ON.

The second question - creating blocking rule in Windows firewall makes the allow rule in snup-in "Allow an app through Windows firewall". Why? Is this a conflict?





Radius and revocked certificate

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Hi all,

I come to you with a strange issue:

Environment

2012 R2 with NPS installed.

  • I have created a Connection request policy for NAS port type with 802.1X wireless - IEEE 802.11 and others Wireless other.
  • One network policy with grant access, conditions:

         - NAS port type similar with Connections Request

         - Windows Groups where a OU is pointed

      Constrains:

         - Authentication method I have Microsoft smart card or other certificate

Now the with this configurations all computers wit certificates can connect using a Cisco Access Point who is client to this Radius server.

My problem, I was revoked the certificate but the computer still can connct to the wireless. A new CRL was released and the revoked certificate is there. I delete all the disk crl cache from RADIUS, I have reconfigured ServerCacheTime in SCHANEL two minutes, nothing work. Computer with the revoked certificate still connect. I have read about TLS cache in SCHANEL that has a cache of 10 hour but we hae shrink that to two minutes. In our test the certificate was revoked 3 hours before our test. 

Any suggestions :) ?

 in logs:

Network Policy Server granted access to a user.

Network Policy Server granted full access to a user because the host met the defined health policy.

802.1x SmartCard and Password on the same NIC

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First little background:

We have been using NPS server and 802.1x for some time now, requiring computer and user authentication.

Now, we are considering implementing Smart Cards and we are stuck at this:

- if we enable Smart Card authentication on NIC and create appropriate rule on NPS server everything works OK

- if we enable username/password authentication on NIC and create appropriate rule on NPS server everything works OK

But what if user loses it's Smart Card or forgets it at home? We considered an option where we in AD temporarily enable username/password authentication but the problem is that NIC settings are set to Smart Card authentication. Is there any way to enable both Smart Card and username/password authentication on NIC?

Thanks for all the answers in advance.

Regards, 

Regards, 

User-based Certificate Authentication

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I have applied 802.1x in wired connections and it worked well. Now, I want to change the authentication to user-based, because right now as the NPS log showed, it checked the machine certificate. Any setup I need to modify so that the NPS checks the user certificate?

Thanks!

Radius Accounting to External Server

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Hello,

I have a radius server on an external server that is listening for Radius Accounting messages.

How do I configure Windows Server 2008 R2 to send Radius Accounting information to this server?

Can I configure Windows Server 2008 R2 to send login and logout AD event information via Radius Accounting?  

For example, with Cisco and Meraki switches we are able to send login and logout (not just Radius-based login/logout) information via Radius Accounting to our firewalls including Sonicwall.

Thanks for your time!

high availability of NPS server and DR

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Availability of NPS is critical because it's absence would cause all machines to remain in quarantine zone. So for that what are the best practices for high availability ? for 802.1X approach.

NLB of two servers and backups sent to DR ?

Supplying IP address of two NPS servers on all switches so that in case of unavailability of one NPS another is taken up automatically ?

Setup on Clustered HyperV with NPS as high available virtual machine ?

What would be the best DR for this ?


Shahid Roofi

Controlling Logon based on User and Conneciton Attributes

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Guys, have a large Windows 2008 R2/2012 R2 estate. Question came up recently about granularly controlling logon to servers based on more than just authentication. Basically, we would like to be able to control all logons to servers (console/remote desktop etc.) based on various parameters of the users such as IP address, time of logon, etc. This would be similar to what RRAS provides for remote connections. is there a way of configuring windows to authorize a logon using TACACs/RADIUS or would we need a 3rd party application with a client running on the server to handle such things? 

NPS Proxy - Prevent Single Point of Failure using 3rd party load balancing

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I'm trying to architect an NPS solution that has no single point of failure.  Based on the reading i've done thus far it seems NPS back end with NPS proxy servers (at least two) in front is the way to go.   I would like to be able to provide one single FQDN or IP address for access to NPS services but not via DNS round-robin. 

It seems the optimal solution would be to use a third-party HW load balancing solution in front of the NPS back-end servers directly but my research seems to indicate this won't work.  In lieu of that, what about HW load balancing to the proxy servers first and then configuring the proxies as per the TechNet article?   Has anyone done this successfully?


2008 - 2012 migration - now audit failures

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Hello,

I just migrated an NPS server from a 2008 R2 to 2012 r2 server. I exported and imported all settings, verified everything was correct.

Now am unable to authenticate, I am getting event ID 6273 "Network Policy Server denied access to a user."

Reason: "Authentication failed due to a user credentials mismatch. Either the user name provided does not map to an existing user account or the password was incorrect."

I have verified correct user credentials. This is now happening for all users since it was migrated.

Does anyone know what is different in NPS on 2012R2 vs 2008R2 that would cause this? Or how I can troubleshoot this?

Thank you.

Windows Server 2012 NPS not forwarding accounting messages

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Hi,

We have a setup with a cisco controller connected to 2 cisco APs that use Windows Server 2012 NPS for 802.1x authentication. This works 100%, users can connect and can get to local resourses, DC, printers, Gateway etc...

However we use a fortigate 60D as our firewall and when setting user based access polices on the fortigate, wireless machines and devices (cellphones, ipads) do not get access to the internet. What I have discovered is the fortigate requires the NPS server to forwards accounting messages to it on UDP 1813. I have added the fortigate to the "Remote RADIUS server groups" on the NPS and set the "Connection request policy" to forward accounting messages to said "Radius group"

However when monitoring with wireshark, when a user joins the wireless the server does not send any packets destined for UDP 1813, i can only see messages being sent to the cisco kit on UDP 1812.

The only way i have gotten this to work is by setting the cisco controller to send the accounting messages instead. Any help as to why the NPS server is not sending these messages would be greatly appreciated?

Regards

issue certificate authority

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Hi, can someone help me for this issue.

In my site using wireless connection, and radius server for authentication.

i have issue like this : The server “<Authentication server>” presented a valid certificate issued by “<CA name>”, but “<CA name>” is not configured as a valid trust anchor for this profile.

i try to folow this link : https://support.microsoft.com/id-id/kb/2518158 , but i don't know step by step for do that. can someone help me for clear this issue.

Thanks


Pattern match for 2 possible ip addresses

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I am attempting to setup some conditions on our nps server and I need to know how to pattern match the following addresses:

10.0.1.250 and 10.0.2.250. I originally thought 10.0.1|2.250 would do it, but I do not think this is correct. Would it be something like this? 10\.0\.1|2\.250

Any help would be greatly appreciated. Thank you in advance.

Jose

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