Cisco AAA/Identity/Nac :: ACS 5.2 Authentication With Local And Global ADs?
Jan 6, 2012
I am facing authentication issue with ACS 5.2. Below is AAA flow (EAP-TLS),
- Wireless Users >> Cisco WLC >> ADs <-- everything OK
- Wireless Users >> Cisco WLC >> ACS 5.2 >> ADs <-- problem
Last time I tested with ACS, it worked but didn't do migration as there'll be changes from ADs. Now my customer wants ACS migration by creating new Group in AD, I also update ACS config. For the user from the old group, authentication is ok.For the user from the new group, authentication fails. With subject not found error, showing the user is from the old group.
Seems like ACS is querying from old records (own cache or database). Already restared the ACS but still the same error.
Note: My customer can only access their local ADs (trusted by Global ADs). Local ADs & ACS are in the same network, ACS should go to local AD first.How can we check or make sure it?
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Sep 13, 2011
is it possible to validate the ACS Application Accounts against an external repository like LDAP? I have found that LDAP can be used only as Identity store to authenticate users on AAA clients and Network devices.
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Nov 12, 2012
I want to have a local user in ACS that is permitted to login to routers. I have TACACS with AD already working but cannot get a local user to work. I used to do this in ACS 4.x.I created a user in the internal identity store.I tried configuring a policy to allow this users TACACS authentication multiple ways to no avail. I cannot find a config example doc and cannot figure it out from the user guide as the documention is sorely lacking.
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Jun 6, 2011
I am experiencing an issue where NX-OS on our 5010s is allowing both Local AND TACACS authentication concurrently. If I don't configure any aaa authorization commands, the locally logged in user has unmitigated access to the device. Once I enable aaa authroization, all commands issued by the locally logged in user are denied by ACS, but they can still log in to the device. When I comb through the logs on the ACS server, I see successful logins when TACACS credentials are used, and also the failed attempts when the locally configured credentials are used. On the switch, however, I receive "%TACACS-3-TACACS_ERROR_MESSAGE: All servers failed to respond" when using locally configured credentials on the switch itself. We are running ACS v4.2.
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Jan 5, 2012
I have a cisco 1841 and I am hooking up some cameras onto my network. My global IP is 64.190.170.2 and my internal IP which is going to my cameras DVR is 192.168.1.15. I need to be able to forward port 8080 from my global IP to my local IP so i can view my DVR remotely. What is the command i need to put in my Cisco 1841 to forward this port?
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Jan 16, 2012
I configured before ACS v4.2 to authenticate network devices using internal users at first, and if the user is not found use AD list users. But with v5.3 I have some problems doing this, on identity policies I use rule based result selection option, I configured 2 polices for Identity source, one for Internal Users and other policy for AD user, but it only works with the first policy, internal users or AD, but works only for the first policy identity. how to do that, if the user is not found on first policy, continue to the next policy.
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Jul 3, 2011
I need a specify users to allow access to particular devices and give privilege only for show command or show run. Here is how I tried to configured.
1. Configured two seperate Shell Profile and Command set with privilege level 4-5 and allowing only show run command
2. create seperate service selection rule with adding the require NDG and protocol TACACS and maching service "RestrictAccess"
3. In the RestrictAccess Service I have following configured; Identity: internal users, Group Mapping to a particular group where the user exists, authorization: matching the above created identity group, NDG, shell profile, command sets
All the steps are attached in the .doc file. However when I tried with the particular user he is able to access everything and he is not hitting the correct access rule.
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May 5, 2013
Is it possible to use both LDAP (to Active Directory) authentication for a WLAN defined on a 5500 series controller, and use the local user account database (AAA) for the guest vlan?
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Aug 5, 2012
I am working on a new install where the customer is using local RADIUS servers at each of their many campuses (for local dynamic VLAN assignment), while using a single set of controllers at the core of their network. For the record, we have set up a pair of 5508s (v 7.2.103.0) in their central data center with 3602i APs around the various campuses. We are using FlexConnect groups to locally authenticate and switch the users.
Right now, the config is working great as far as authentication and local switching goes. The problem we are experiencing is that none of the authenticated usernames are being passed back to the controller (and ultimately NCS). This makes the tracking and troubleshooting of users difficult. Is there something I am missing here? I can't seem to find any fixes relevant to this issue in the 7.2.110.0 release notes.
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May 2, 2012
I have a new 2911 that I am trying to bring up but local authentication is failing. I know I have typed the username and password correctly but no go. When I try to http in it is failing as well. I even create a "Cisco, Cisco" account. I have a console connection and even that is failing.
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Mar 27, 2012
Should I trunk the port to the AP or not. I have a WLC 5508 in the head office and have AP in the remote office. I do not want traffic in the remote office to traverse the wan back to the WLC. I want the users at the remote office to use the local sub net at the remote site.
Should I then trunk the AP port on the switch to the AP as I have multiple ssid's with different sub nets?
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Oct 11, 2009
I'm having a problem configuring local EAP Authentication using CA (Windows Server) and LDAP server. I followed the URL:
[URL]
but it seems that CA has no effect. Any wireless client who has his own LDAP account can access to the network.What I want is just allow some wireless clients to access if they have approved CA before.
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Mar 14, 2011
How i can use both LDAP Authentication and local user database to authenticate the remote vpn clinet in asa 5505?
when i try to do the things either only one method is working both are not working at a time.
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Feb 5, 2011
There is no "authentication" and "advance" tab in my local area connection properties. Do I need to do something to get that options?
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Apr 4, 2013
I have several 2602 AP's that I want to operate in FlexConnect mode. The WLC is at a central HQ and the Ap's are remote. There are central radius servers at the HQ for the wlans. At the remote lcoation, there is a local radius server we want to use for the primary radius server for these AP's. This radius server has been added to the WLC. I have setup a FlexConnect Group, designated the the primary and secondary servers, and then added the AP's to the group. It does not look like radius requests are being sent to the local controller.
For this to work, do we have to check the box under the wlan for FlexConnect Local Auth? Currently, we only have FlexConnect local switching selected.
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Feb 2, 2012
In order to restrict access to websites on our internal network, would we be able to put an ASA in front of the web server and force users to authenticate through the ASA and, once authenticated, allow only port 80 or 443 traffic for that use? The ASA would query the ACS 5.1 server for authentication/authorization using AD as the identity store. Is this even possible with TACACS?
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Apr 1, 2012
My customer has a large installed base of MACs, all connected via controller-based (5508) WLAN. He wants to grant access to the network based on the device's mac addresses and move the WLAN-clients to a specific VLAN.I added all devices with their mac addresses to the ACS internal identity store for hosts.According to the following message the client sends the user-login credentials (chegger) within the RADIUS-request instead of the clients mac address and of course it has to fail. After many configuration changes, I ended up always with the same result.
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Jun 13, 2012
I have question on EAP-TLS with ACS 5.2. If I would like to implement the EAP-TLS with Microsoft CA, how will the machine and user authentication take place? Understand that the cert are required on both client and server end, but is this certificate ties to the machine or ties to individual user?
If ties to user, and I have a shared PC which login by few users, is that mean every user account will have their own certificates?
And every individual user will have to manually get the cert from CA? is there any other method as my environment has more than 3000 PCs.
And also if it ties to user, all user can get their cert from CA with their AD login name and password, if they bring in their own device and try to get the cert from CA, they will be able to successfully install the cert into their device right?
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Jan 22, 2012
I have a new ACS 5.3 installation which I have joined to our AD Domain and added the directory groups into. I have also added all our devices into ACS and their groups etc but I am still only able to authenticate on the our switches with an internal ACS account, when I try with an external AD account the log shows the following error "Subject not found in the applicable identity Store (s)"
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Mar 3, 2011
I'm trying to synch time in an ACS 5.1 but after configuring with the ntp server command the show ntp command displays that time is synchronised to local net at stratum 11.The ntp source is a Windows 2003 server and the show ntp command shows that it has an external refid with at stratum 2, but still the ACS won't synchronize with this source, only local.
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Feb 18, 2013
i configured pix 525 for easy vpn. About 100 to 200 people will use this service. i dont have much knowledge about radius and tacacas servers. Is local data base enough for extended authentication or should i configure the server for it ?
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Apr 18, 2010
We got recently a Cisco Secure ACS 1120 and i upgraded the Appliance to 5.1 from 5.0 with all your support
Now I need to integrate Cisco ACS 5.1 with RSA Authentication Manager 6.1 . I Successfully Downloaded config file from RSA ACE Server and exported into ACS 1120.
I also Added ACS as a NetOS Agent in the RSA Server , during the process i found few warnings . The ACE Server is not able to Resolve the IP Address to NAme ( DOes it Necessary ?? ).
I havent created any secret Key file for communication between ACS and RSA and encryption i used is DES.
Now when I log into ACS and search for Devices in the Identity Store Sequences i am not able to Look for RSA Token Sever .
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Nov 22, 2011
I have been trying to get our IPS (ASA-SSM-10 and 4260) to authenticate with Cisco Radius ACS 5.2 and they are not working. However, I was able to get them working with Microsoft Radius. Below is the logs from the IPS:
evStatus: eventId=1321566464942057375 vendor=Cisco originator: hostId: NACAIRVIDLAB1 appName: authentication appInstanceId: 350 time: 2011/11/23 17:50:38 2011/11/23 09:50:38 GMT-08:00 controlTransaction:
[Code].....
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Dec 13, 2012
If laptop/desktop goes on sleep mode or keep connected with interface configured for 802.1X for more than 12 hours it does not work or not connect to Exchange server, Cisco ISE console, office communicator..for re authentication i need to restart PC/ Laptop or unplug and replug lan cable from it!but before restarting i am able to ping all DNS, DHCP, OCS, everything..[code]
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Mar 9, 2011
I would like to konw does Cisco ACS 4.x / 5.x natively support Two factor authenication, but not act as a Radius Proxy?
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Feb 23, 2012
I need to limit to some AD groups, authentication with ACS 5.3.For example, i need that only users os somedomain.com/users/test1 are authenticatet via ACS --> ADS.
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Mar 4, 2012
I have a Cisco ASA (8.2) setup with remote access for my users using Cisco VPN client. The authentication is passed off to my ACS 5.3 which then checks with AD. What I've done so far is create Access Policy rule where I define specifically the Location and NDG where the ASA is and then a DenyAllCommands command set. This should pass authentications just fine but this also gives those users the ability to remote connect directly into the ASA and login successfully. Even though there is a Deny Commands there I still would prefer they get Access Denied as a message. If I do a Deny Access on the ShellProfile then this stops the login authentication altogether.
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Jun 14, 2011
We would like to enable ACS authentication to login to different routers (Cisco 881s) we got that are interconnecting with our WAN via VPN tunnels. We would like to avoid using public IP for the router to communicate and relay user/password info with the ACS server and rely on the server's private IP instead. The problem is that all the router's outside interfaces connect to the Internet using public IPs and when the router wants to communicate with the ACS server it will use its public-facing interface IP and that'll fail. We can ping the server obviously when we set the source to the internal LAN IP.
The question is is there a way to have the router communicate with ACS across the VPN tunnel using its private IP?
config being used and tested succesfully on local devices:
aaa new-model
tacacs-server host 10.x.x.x single-connection key xxxxxx
aaa authentication login tacacs-local group tacacs local
[Code].....
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Aug 17, 2011
I have a dot1x client with client certificate working well with my ACS 5.2 and EAP-TLS. Now I would like to configure the Re-Auth periode on the ACS 5.2, I did the following:
1. Configure a Access Profile with Reauthentication Timer = static and 30 seconds (see attachment ACS1.png and ACS2.png)
2. Enabled authentication periodic and authentication timer reauthenticate server on switchport
interface GigabitEthernet1/0/x
description to dot1x clients
switchport access vlan 5
switchport mode access
authentication event fail action authorize vlan 998
[code]....
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Aug 8, 2012
i am evaluating ACS 5.3 with an ASA5505, by using password management in the IPSec tunnel config i am able to authenticate the VPN clients using mschapv2, however, the SSH sessions are authenticated using PAP
I have looked for days and days for an answer without success, is this by design?
Cisco documents state that SSH can be authenticated via TACACS with PAP,CHAP or MSCHAPv1, however, It seems to be default to PAP
From Cisco Doc: TACACS+ Server Support # The security appliance supports TACACS+ authentication with ASCII, PAP, CHAP, and MS-CHAPv1
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May 13, 2011
I am getting ready to install a new ACS 5.1 server to replace my current 4.1 acs box. I wanted to start off with a fresh install rather than upgrading all of my 4.1 data.
Can I have devices (ASA for VPN authentication, routers & switches for user authentication) use both for authentication while I get all the users configured in the new box?
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Mar 10, 2011
I have a questión about radius authenticaction with AD, when I log in into the network with user in AD and I make a mistake in password my radius authenticaction event in ACS 5.2 dont show me this logg. only show the authentication succeeded but dont show me the authentication failed. Maybe i must to enable same service to show the authentiaction failed. The Voice authetication works fine..
This is the confg in the port of the switch:
interface FastEthernet0/12 switchport mode access switchport access vlan 2 switchport voice vlan 10 authentication port-control auto authentication host-mode multi-domain authentication violation protect authentication event fail action authorize vlan 11 authentication event fail retry 2 action authorize vlan 11 authentication event no-response action authorize vlan 11 authentication periodic authentication timer reauthenticate 60 mab dot1x pae authenticator dot1x timeout tx-period 10 dot1x max-reauth-req 3 spanning-tree portfast end
Vlan 2: DATA
Vlan 10: VOICE
Vlan 11: GUEST
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Sep 7, 2012
I configured ACS 5.3 and added AAA clients with TACACS+ server and shared secret key as cisco123. i did the below config on switch also. when i try to authenticate login with ACS it does not respond. Find the configuration and debug output.nd
In debug output it gives ruser and rem_addr is null. i did not understand why .
I am able to ping to ACS server and i used telnet 192.x.x.10 49 and it gives the proper output.
aaa new-model
aaa authentication login default group tacacs+ local
!
tacacs-server host 192.168.60.10 key cisco123
tacacs-server directed-request
ip tacacs source-interface Vlan172
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