802.1X for wired environments using Radius/ACS for Dynamic Vlan Assignment

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802.1X for wired environments using Radius/ACS for Dynamic Vlan Assignment
Could someone please provide me with a simplest set of configuration steps to fire up Radius in ACS and 802.1X for dynamic vlan assignment. The objective is to roll out NAC L2 OOB using the 802.1X method for dymamic vlan assignments.
If possible show:
1. ACS/Radius Configurations.
2. End User Switch Configurations
Variables:
Switch A
MAC Address aaaa.bbbb.cccc Vlan 10
bbbb.cccc.dddd Vlan 20
Also, if someone posts the Pros and Cons of using Radius/ACS/802.1X for Dynamic Vlan Assignments.
Other technology sets that can be used for Dynamic Vlan assignment EXCEPT from deprecated/obsolete VMPS.
Thanks in advance. .

Hi Guys,
    Hmmm, well if your just looking for Mac based authentication the good news is that is very easy. Just set create your Radius server, ACS, FreeRadius, Steelbelted radius etc. Then create user with the name of the Mac address, in other words if the mac address is 0012.0021.1122 the the name would be 001200211122 and the password would be the mac address. Then you set the vlan and tunnel stuff, like so tunnel-Type would be vlan, Tunnel-medium would be 802 and Tunnel-Private-Group-ID is the name of the vlan(not the vlan number)
   So for the Cisco ACS 4.x you would create a user as specified above, fill in all the password boxes with MAC address, I believe the mac has to be all lower case in the name and the password. Then check the Separate(Chap/MS-Chap/ARAP) box. Then you pick the group the machine belongs to, the group is the part that defines what vlan it is on.
   Before you create the user, create the group with info I wrote above and in addition specify the Service-Type as Authenticate Only.
    Freeradius is a bit harder to configure the specifics and I am just now testing a freeradius server so I do not know the process for Machine authentication.
    If, however, you are trying to authenticate a user that gets a bit trickier and is not so straight forward.

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Acs and Dynamic vlan assignment problem

Hi all,
I'm unable to dinamically pass the Radius attribute , about assigned vlan, to 802.1x clients.
I'm sure that everything is well configured but the only way to do it is configuring these attributes directly on user or group properties.
When i try to pass these attributes by appliction of a Shared RAC (acs 4.2) or NAP (ACS 5.0) the only message that i can find on the switch, where the vlan has to be configured, is:
dot1x-ev:Received VLAN is No Vlan
dot1x-ev:Received VLAN Id -1
The user is still authenticated successfully ( and all the profiles correctly assigned) but remain in the vlan statically configured on the interface.
The logic is working, but transmission do not.
Is this a bug ?

test the authentication again.If is still fails, set the logging to full on the ACS server using:
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_tech_note09186a00800afec1.shtml#setting_acs
Also Check if you are running another RADIUS product on the same server as the ACS services and the same decryption was being used.Reset shared key on switch and radius server.

802.1x dynamic vlan assignment using ACS 4.2

Hi
we have 10 switches 2960 configured with 802.1x authentication against ACS server 4.2.
we have 2 vlans configured on the switches for administrator and endusers. the end user vlan id is 10 and the administartor vlan is is 100.
we need to apply the following scenario, if the enduser PC - that is connected to vlan 10 - has an issue and the administrator will login to the PC with the administrator account to fix that issue, the switch should dynamically reconfigure the port with the administrator vlan ( 100 ) .
is the above scenario doable using dot1x with the ACS server?
waiting your replies
Mohamed

Hi,
I have the following scenario
2 bulidings with multiple floor
Each floor should be in different VLAN.
The network should be authenticated with 802.1x and each switch port should be assigned with dynamic VLAN from ACS.
Each
user should be able to connect and roam around between any building.
when ever a user is connecting his laptop to any floor, he should be
made part of that respective vlan. It is not requred to have the same
IP rage to be allocated, but the dynamic VLAN should be based on the
switch port location.
Can
I configure ACS in such a way that, the ACS will allocate dynamic VLAN
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Please refer the attached diagram
Hi,
Check out the below link for your requirement for dynamic vlan assignement using ACS
http://www.ciscosystems.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008076317c.shtml
Hope to Help !!
Ganesh.H
Remember to rate the helpful post

802.1x Dynamic Vlan assignment using ACS

Hi,
I have the following scenario
2 bulidings with multiple floor
Each floor should be in different VLAN.
The network should be authenticated with 802.1x and each switch port should be assigned with dynamic VLAN from ACS.
Each user should be able to connect and roam around between any building. when ever a user is connecting his laptop to any floor, he should be made part of that respective vlan. It is not requred to have the same IP rage to be allocated, but the dynamic VLAN should be based on the switch port location.
Can I configure ACS in such a way that, the ACS will allocate dynamic VLAN for every 802.1x authentication based on the Network Device Group. Please refer the attached diagram

Hi,
I have the following scenario
2 bulidings with multiple floor
Each floor should be in different VLAN.
The network should be authenticated with 802.1x and each switch port should be assigned with dynamic VLAN from ACS.
Each
user should be able to connect and roam around between any building.
when ever a user is connecting his laptop to any floor, he should be
made part of that respective vlan. It is not requred to have the same
IP rage to be allocated, but the dynamic VLAN should be based on the
switch port location.
Can
I configure ACS in such a way that, the ACS will allocate dynamic VLAN
for every 802.1x authentication based on the Network Device Group.
Please refer the attached diagram
Hi,
Check out the below link for your requirement for dynamic vlan assignement using ACS
http://www.ciscosystems.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008076317c.shtml
Hope to Help !!
Ganesh.H
Remember to rate the helpful post

Dynamic VLAN assignment with WLC and ACS for

Currently, using our autonomous APs and ACS, our users get separate VLANs per building based on their security level (students or staff). Basically, the student VLAN in one building is different from that of the student VLANs in other buildings on campus. Currently, we do this by filling the Tunnel-Private-Group-ID IETF RADIUS attribute with the VLAN name. This all works because each individual AP can map VLAN names to different VLANs like this:
dot11 vlan-name STUDENT vlan 2903
dot11 vlan-name FACSTAF vlan 2905
As we are working on our WiSM deployment, we see that the document below shows how to do the dynamic VLAN assignment on our WLAN controllers:
http://www.cisco.com/en/US/customer/products/sw/secursw/ps2086/products_configuration_example09186a00808c9bd1.shtml
However, we haven't figured out if it's possible to still provide our users with different VLANs for each building they're in.
With the instructions above, it looks like ACS uses a Cisco RADIUS Attribute to indicate the Air-Interface-Name, mapping an ACS/AD group to a single WLC interface which can only have one VLAN/subnet associated with it.
Does anybody know if what we're trying to accomplish is possible, or if we're really stuck with only one VLAN/subnet per mapped ACS group?

We only have the one WiSM for all of campus, so it's handling everything. This Cisco docs do indicate how to put differnet users in different Vlans, but we don't currently see a way to also put them in different subnets per building.
This being the case, any suggestions on how best to handle more than a Class C subnet's worth of users? Should we just subnet larger than Class C, or is there a more elegant way of handling this?

802.1x dynamic VLAN assignment with Radius NPS Server

I can NOT get the NPS and Cisco 3550 switch to drop the authenticated user in a VLAN.
I have followed this documentation,
http://msdn.microsoft.com/en-us/library/dd314181(v=ws.10).aspx
that basically says to use these Radius attributes,
Tunnel-Medium-Type : 802
Tunnel-Pvt-Group-ID : My_VLAN_Number (also tried VLAN name)
Tunnel-Type : VLAN
There is some Cisco documentation that says to use Vendor Specific attributes Cisco-AV-Pair,
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12-1_19_ea1/configuration/guide/2950scg/swauthen.html#wpxref83693
and I have also tried that,
cisco-avpair= "tunnel-type(#64)=VLAN(13)"
cisco-avpair= "tunnel-medium-type(#65)=802 media(6)"
cisco-avpair= "tunnel-private-group-ID(#81)=vlanid"
My user authenticates on the port fine, but doesn't get put into a VLAN. If I add "sw acc vlan 110" then the user authenticates and then does get an IP address in that VLAN and all is well.
Anybody know how to get dynamic VLAN assignment working with NPS?
NPS on Win 2012 R2
Domain controller separate Win 2012 R2 server
Cisco 3550 switch

Hi All, Can any one guide me to
configure 802.1x with acs 5.0. Its totally new look and m not able to
find document related to 802.1x.Thanks
Hi,
Check out the below link on how to configure 802.1x and ACS administration hope to help !!
http://www.cisco.com/en/US/tech/tk389/tk814/technologies_configuration_example09186a00808abf2d.shtml#MDA
Ganesh.H

802.1x RADIUS with EAP-TLS/EAP-TTLS & Dynamic VLAN Assignment

Hello, My team is looking for switches supporting 802.1x authentication on either EAP-TTLS or EAP-TLS protocols with dynamic vlan assignment enabled for these. Looking at the data sheets of the Linksys desktop switches, I found only SLM224G4PS and SLM224G4S models to support EAP-TLS or EAP-TTLS. Am I right? Do they support Dynamic VLAN Assigment for either of those protocols? This is not explicitly mentioned in the data sheets, and I happen to find switches from other manufacturers that announce to support EAP-TLS/EAP-TTLS but no dynamic vlan assignment. Thank you for any help.

SLM switches do support 802.1x RADIUS with EAP-TLS/EAP-TTLS unlike the SRW switches which support MD5. But I don't think that they support Dynamic VLAN.

802.1x authetication with dynamic Vlan assignment by a radius server

Hi
At school I want to start using 802.1x authentication with dynamic Vlan assignment by a Windows Server 2012R2 Radius server.
When a student logs in, I want it to be placed in the "Students" Vlan, when a Administrative employee logs in, I want it to be placed in the "Administative" vlan and when the client is unknown I want to place it in the "Guest" Vlan.
I have several SG200 switches and I configured everything as mentioned in the administrative guide but I cannot get it to work as desired.
What does work:
- If the client is permitted, the switch changes to "authorized" state. (before anyone logs on to the domain with that client)
- When a User logs on that is part of the Administrative employees, the switch changes to "authorized" and when a student logs on, it changes to "unauthorized".
So far so good.
But what doesn't work:
- it does not put the administrative employee in the Vlan "Administrative", it just enables the port on the switch but leaves it in the default vlan 1.
- I can not find the Guest VLAN.
Any help would be appriciated.

Hi Wouter,
Can you see in the packet capture Radius accept message VLAN attribute? Also please ensure you have the latest firmware and boot code:
http://www.cisco.com/c/en/us/support/switches/sg200-26-26-port-gigabit-smart-switch/model.html#~rdtab1
I would recommend you to open ticket with Small Business team so they can go with you through packet capture and configuration steps:
http://www.cisco.com/c/en/us/support/web/tsd-cisco-small-business-support-center-contacts.html
Regards,
Aleksandra

I am setting up a Numbers table for gas milage using one column for gallons divided by the next column of miles and having the answer in the third column in miles per gallon.

I am setting up a Numbers table for gas milage using one column for miles and the next column for gallons, the two to be divided to produce the third column of miles per gallon and am unable to find out how to do that. Add and/or subtract, yes, but not to divide.

...and results in yield signs indicating an error:
Hi Wayne,
Yield signs must be different in Texas. Here (and in much of the rest of the world) they're white with a red border, and installed with an apex pointing down:
Some still include the word "Yield" (or in Quebec, "Cedez"in black letters.
Maybe you're thinking of the "Warning triangle", which is similar, but installed base down, and often including a symbol in the white space:
These are more common in Europe, with the exception of the portable version, which I've seen used at road construction sites or as 'flares' to warn of a disabled vehicle on the road.
Or maybe you were thinking of this
(Most of these 'slow moving vehicle' triangles have an orange center. This one looked a bit more 'Texas,' though.)
Cheers,
Barry

Dynamic VLAN Assignment with RADIUS Server and Aironet Access Points

Hi Guys,
I would like to go for "Dynamic VLAN Assignment with RADIUS Server and Aironet Access Points 1300". I want the AP to broadcast only 1 SSID. The client find the SSID ->put in his user credential->Raudius athentication->assign him to an specific vlan based on his groupship.
The problem here is that I don't have a AP controller but only configurable Aironet Access Points 1300. I can connect to the radius server, but I am not sure how to confirgure the AP's port, radio port, vlan and SSID.
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008076317c.shtml#switch
I go through some references:
3.5 RADIUS-Based VLAN Access Control
As discussed earlier, each SSID is mapped to a default VLAN-ID on the wired side. The IT administrator may wish to impose back end (such as RADIUS)-based VLAN access control using 802.1X or MAC address authentication mechanisms. For example, if the WLAN is set up such that all VLANs use 802.1X and similar encryption mechanisms for WLAN user access, then a user can "hop" from one VLAN to another by simply changing the SSID and successfully authenticating to the access point (using 802.1X). This may not be preferred if the WLAN user is confined to a particular VLAN.
There are two different ways to implement RADIUS-based VLAN access control features:
1. RADIUS-based SSID access control: Upon successful 802.1X or MAC address authentication, the RADIUS server passes back the allowed SSID list for the WLAN user to the access point or bridge. If the user used an SSID on the allowed SSID list, then the user is allowed to associate to the WLAN. Otherwise, the user is disassociated from the access point or bridge.
2. RADIUS-based VLAN assignment: Upon successful 802.1X or MAC address authentication, the RADIUS server assigns the user to a predetermined VLAN-ID on the wired side. The SSID used for WLAN access doesn't matter because the user is always assigned to this predetermined VLAN-ID.
extract from: Wireless Virtual LAN Deployment Guide
http://www.cisco.com/en/US/products/hw/wireless/ps430/prod_technical_reference09186a00801444a1.html
==============================================================
Dynamic VLAN Assignment with RADIUS Server and Wireless LAN Controller Configuration Example
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008076317c.shtml#switch
==============================================================
Controller: Wireless Domain Services Configuration
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_example09186a00801c951f.shtml
Any help on this issue is appreicated.
Thanks.

I'm not sure if the Autonomous APs have the option for AAA Override. On the WLC, I can go into the BSSID, Security, Advanced, and there's a checkbox that I would check to allow a Radius server to send back the VLAN.
I did a little research and it looks like the 1300 may give this option but instead is defined as "VLAN Override". I've found the release notes for 12.3(7)JA5 (not sure what version you're running) that give mention and a link to configuring EAP on page 4: http://www.ciscosystems.ch/en/US/docs/wireless/access_point/1300/release/notes/o37ja5rn.pdf
Hope this helps

WLC- dynamic Vlan assignment with Radius

Hello, we would like to use this feature in our company and because of that I am now testing it. But I found one problem.
I created one testing SSID and two Vlans on WLC. On ACS I use an IETF atributes (064,065,081) for my account and I am changing Vlan ID (081) during testing.
It works with LEAP but when I use PEAP-GTC (which we use commonly in our company) the ip address is not assigned properly (ip which was assigned before remains).
Could you please help me?

There is good document which explains how to configure Dynamic VLAN Assignment with RADIUS Server and Wireless LAN Controller. This will help you. You will find the document at http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008076317c.shtml

Time-based access to WLAN/building for specific users using WCS/ACS

Here's our situation:
WCS: 7.0.172.0
ACS: 4.2(1)
MSE: 6.0.75.0
For an hour or two each day during an event, we're trying to figure out how to prevent students from connecting to the wireless in a particular building.
All students are in the same WLAN. Everybody on campus uses the same SSID. We dynamically assign users to WLANs based on who they are through ACS. In addition to 802.1x authentication, MAC address authentication is performed by way of ACS to our in-house NAC system, where all students have registered their computers with us. This currently uses the External ODBC Database option in ACS.
Our contraints:
- We want them to be able to access wireless at other campus areas during this time, just not in this one building.
- Faculty/Staff needs to use the wireless in that building during that time. This prevents me from simply shutting down the radios temporarily.
Has anybody attempted anything similar? Anybody have any thoughts or ideas?
Ethan A. Cooper
Network Administrator
LeTourneau University

Currently, IP and IPX extended access lists are the only functions that can use time ranges. The time range allows the network administrator to define when the permit or deny statements in the access list are in effect. Prior to this feature, access list statements were always in effect once they were applied. Both named or numbered access lists can reference a time range.
For the further description following URL for the Time-Based Access Lists will help you.
http://www.cisco.com/en/US/docs/ios/12_0t/12_0t1/feature/guide/timerang.html#wp10236
I hope it may help you.

Use same ACS for multiple forests

Is it posible to use one ACS appliance to authenticate users in different Windows forests ?
It may be only possible when a trust relationship exists between the forests ?
Gr.
Remco

Remco,
Yes,trust is reqd. Other way is to set up proxy
Cross-Forest Authentication
http://www.microsoft.com/technet/prodtechnol/winxppro/deploy/ed80211.mspx#EE
VAG
In this set up we would need one more radius server and also need to set up proxy in it.
Regards,
~JG
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ACS with Dynamic VLAN which protocol to use ??

Hello,
Which Protocol do I need to use, for providing dynamic VLAN to my desktop machines?
As in ACS 4.0 if I use local database of ACS then users successfully get the dynamic VLAN & as soon I use AD database while integration it with ACS ,the authentication fails!!
Please help.

Hi,
Thanks for the reply. I am using EAP-MD5.
However, the problem is if I am using ACS solution Engine local database, users are getting dynamic VLAN after authentication.
But when I use AD as user database, the authentication fails. Even strange thing is that if I use AD database to log in to any Cisco Router then the authentication is working fine.
Even I am struggling with TAC also from last week in two different cases! However, they are unable to help! I found TAC has limited resource for ACS.
So please suggest what to do as on Cisco site, I found lots of stuff for Wireless but I have only the desktops (no wireless).
So will the mention below URL be of any help?
http://www.cisco.com/en/US/products/sw/secursw/ps2086/products_configuration_example09186a00805e7a18.shtml
Thanks in advance
Vijay

Dynamic VLAN Assignment for wired campus network

Hi,
I`m working on Dynamic Vlan Assigmenton the basis of end user authenticatedwhoc are part of specific AD Group in c ampus enviorment.
Objective: Need to assign the vlan on switch port on the basis of authenticated users OU Group in Active Directory.
Eg: There are 2 OU groups in AD, Sales and Administration. Authenticated user in Sales group should get Vlan 10 and user in Admininstration Group shoudl get Vlan 20.
Components:
Cisco 3750x/Cisco 4500
ACS Version 5.2
Microsoft AD
Would request you to share same tutorials/documents which can be reffered to have this operational.
Thanks in advance.

Search for cvd designs at cisco. You wil find many examples for dot1x ( AAA )
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802.1X for wired environments using Radius/ACS for Dynamic Vlan Assignment

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