Cisco AAA/Identity/Nac :: ASA 5520 - VPN Access Control Using LDAP
Mar 13, 2011
I am configuring an ASA 5520 for VPN access. Authorization & Authentication use an LDAP server. I have the tunneling configured successfully, and I can access internal resources. What I want to do now is to restrict access to a specific AD Group membership. In the absence of that group membership, a user should not be allowed access to the VPN.
My test VPN client software is Cisco Systems VPN Client Version 5.0.05.0290. The group authentication is configured into a Connection Entry that identifies the Tunnel Group. I think I worded that correctly.
The Software Version on the ASA is 8.3(1).
My current challenge is getting the VPN to stop letting every access request through regardless of group membership.
[URL]
The configuration (AAA LDAP, group policy, and tunnel group) is below.
aaa-server LDAP protocol ldapaaa-server LDAP (inside) host x.x.y.12 server-port 636 ldap-base-dn dc=domain,dc=com ldap-scope subtree ldap-naming-attribute sAMAccountName ldap-login-password ******** ldap-login-dn
[Code].....
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Sep 1, 2011
I have 2 ASA 5520 (v. 8.21) in a active/standby fail over configuration.
VPN users are autenticated against the MS-AD through LDAP. For the most part this works well. Occasionally I'm having problems with new users in the AD. If I run a test I keep getting "User was not found". This can happen days after the account was created still. In some cases it never seems to work. The accounts I create exists on the same OU level as all the other accounts that are working.
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Dec 11, 2011
I have setup clientless SSL VPN on my ASA. User authentication is done by RADIUS using ACS 5.2, I have created two portal one for IT department and the other for auditing department but the user in auditing if the select IT group from the drop down list they can login to it, my question is how can I make them login to their group only and prevent them from accessing other groups ?
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Feb 16, 2013
We recently deployed ACS 5.3 on a VM, while the main purpose of implementation was to control access (authentication/authorization) on network devices; Can we use the same user to authenticate users' access to our wired network? So only users with a valid credentials on our Windows AD can have access to the network?
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Aug 6, 2012
is there any method to control an access to the different WLAN(PEAP) on the same ACS 5.2 and WLC?That is, there is two AD groups the one have access to domain network only the other group have access to internet only and may be third group that have access to both networks.Currently if i add new authorization policy the user will have access to both networks.
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Jun 5, 2013
Configuration: VM with ACS 5.4 with patch 3. (upgraded from 5.2.0.26 patch 10)When I go on "System Administration" - "Administrators" - "Administrative Access Control" - "Authorization", I got this error:
What I tried:
"acs backup" on this server and shutdown
Install an ACS 5.4 with patch 3 on new VM --> I don't have the problem on GUI
"acs restore" to restore my configuration on new server --> I got this problem again...
I want to use this feature...After this error, others pages generate this error: I have to reload server or restart management service to get him back...How could I solve this? (I don't want to reconfigure manually the server )
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May 18, 2011
I have a new Cisco Secure ACS 5.2 on a VM. We want to use it to for administrative access to our Cisco equipment with TACACS+. I am trying to map user permissions to different groups of devices based on active directory group membership, however it is not working.
I am using an LDAP (configured for secure authentication) external identity store. On the directory organization tab, I have confirmed the accuracy of the subject and group search base and the test configuration button shows that it's finding > 100 users and >100 groups.
On the directory groups page I have entered the groups according to the required format. cn=groupname1,ou=groups,dc=abc,dc=com
I have a rule based result selection under group mapping. I have two rules in the format below.
Conditon
LDAP:Externalgroups groupname1
Result
Identitygroup1
I have the default group set to a identity group named other. My problem is, no matter what user attempts to authenticate, the Default rule is applied, and the user is put into the other identity group.This occurs when I log on as a groupname1 user, groupname2 user, or as user that is not a member of either of those groups. LDAP authentication works and the user is able to logon to the device.
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Jun 8, 2011
ASA 5520 to get it to authenticate VPN users against and Active Directory environment plus allow management access as well. I created a Dynamic Access Policy on the ASA stating that if you are a member of the Active Directory group "Managment" the continue. I chagned the DefaultAccessPolicy to "Terminate". So with that, VPN users cannot connect because they are not a member of that group, but the access to manage the ASA is allowed because of that policy.Is there a way through using Dynamic Access Policies that I can allow management access (SSH, ASDM, etc) by matching to a group membership and will allow normal users to VPN in successfully but not allow them access to managing the ASA?
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Oct 4, 2012
I have an ASA 5520 in my company which does all our NAT and Firewall access control. Currently there is a rule in place to allow an incoming connection on port 2222 from a specific ip address to allow access to a web app our developers created. This is a test before the web app is released live. Now the web app can communicate with the specific address and port but the incoming connection on port 2222 isn't getting through. Everything looks great in the firewall but how can I log any hits this ACL takes to identify any potential problems?
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Jun 21, 2012
I'm running VPN SSL on an asa 5520 (V8.2.5) with LDAP authentication and everything works fine but now the AD people changed name in the groups and they added a " " "blank" in one of the fields so when I configured the group I get an error.
for example:
map-value memberOf CN=VPN_SSL_ABC,OU=External,OU=XXX,DC=ext,DC=local ABCPolicy
but this does not:
map-value memberOf CN=VPN_SSL_ABC,OU=External Group,OU=XXX,DC=ext,DC=local ABCPolicy
Is there any way to insert a space in the OU field?
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Oct 27, 2012
I am trying to implement Microsoft LDAP server with our ASA 5520. The client is using Cisco VPN client and when I am trying to connect I am receiving the following error message:
"Secure VPN connection terminated locally by the client. Reason 413:User authentication failed"
I triggered the debug on the ASA 5520 and everything looks fine .The LDAP server is sending the right information without any error message.
Googled this error message and I found that I need to enable the simultaneous logins to enable. I enabled it but I got the same error message. This configuration is under remote access vpn>group-policies>General>more options.
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Oct 16, 2012
I've gotten to the point where I can test against active directory and get in, also I can get AD groups from my server on the ASA. My problem, I can't connect in via my AnyConnect client on my Android. I immediately get a "log in failed" and I know I'm using the right username/pass. Doing a little troubleshooting, I have attached my AnyConnect debug log and the results of the "debug ldap 255" command on the ASA. Also, I've used ldp.exe to determine I can connect in with the username/password combo I'm using.Combing through the AnyConnect logs I see a few instances of "global error unexpected" but no Google searches have brought up anything useful.
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Jan 30, 2012
I am new to v5.3, and I am not good at VPN.I just have my consultant to configure this correctly just today. Currently, there is only one rule for the access policy (Single Result Selection). That rule is to use Active Directory as the source for the authentication. And by default will deny any other access which is not found in the rule.Now... I just got an order that I need to setup a new user who will need to access to our network by using Cisco IPSec VPN (the software one). But that user is not setup in our Active Directory, and we do not want him to access our domain anyway. He only needs to access non-domain resourse...such as airconditioning controller by IP. So I am thinking to setup his account by using "internal identtity". If I do this way, what do I need to do to setup another access policy? May you give me some steps with little more details? OR... if it is not the way I should do...what else can I do to achieve this goal? Also, he said he could provide his static IP trying to access from. I have a ASA 5520.
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Jun 22, 2011
provide me Step by Step procedure for integrating LDAP with ACS 5.2 .
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May 16, 2011
I am having a problem getting an ASA running 8.3 to authenticate an SSL VPN directly against an LDAP on Windows Server 2003. I have changed the read access on the Active Directory to allow Annonymous to read it. I think I am missing something on the ASA config. I have the Server Group specified with the address of the correct server but nothing else really configured.
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Oct 23, 2012
know about Domino LDAP ? I would like to integrate this LDAP with Cisco ISE.I try to bind this LDAP but it does not show me anything in "Naming Context". So I cannot choose group to map into ISE.I test this on WLC. It is success to do but cannot make the same thing with Cisco ISE.Is this LDAP supports with Cisco ISE 1.1.1 ?
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Jul 31, 2012
I have 2 SSIDs on WLCs.I would like to have 1 SSID point to the acs radius using LDAP store and the 2nd SSID point to the acs radius using the host identity store for mac filtering.both scenarios are working, but not together.if I adjust the rule order I can get one SSID, but then the other fails. [code] It seems to me that there should be a simple process to make this happens. I thought if the rule is not matched it would move on to the next rule etc.I might be able to live with first checking ldap and if that fails move on to the local host db, but that seems ineficient. url...
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May 8, 2011
I have an CS-ACS appliance with 5.2.0.0.26.3 version. There is not any direct solution for connect ldap client to server. I have 3 servers that have only ldap and for authentication I can not use radius or Tacacs+. I need a solution for this problem. How can LDAP Client connect to ACS when it has only ldap protocol?
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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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Mar 2, 2011
I have a problem with LDAP authentication. i have an Cisco Asa5510 and windows 2008 R2 server. i create LDAP authentication.
aaa-server LDAPGROUP protocol ldapaaa-server LDAPGROUP (inside) host 10.0.1.30 server-port 389 ldap-base-dn dc=reseaux,dc=local ldap-naming-attribute sAMAccountName ldap-login-password ***** ldap-login-dn CN=user,OU=Utilisateurs,DC=reseau,DC=local server-type microsoft
but when i test, i have an error (user account work directly in server)
test aaa-server authentication LDAPGROUP host 10.0.1.30 username user password *****
INFO: Attempting Authentication test to IP address <10.0.1.30> (timeout: 12 seconds)ERROR: Authentication Rejected: Unspecified
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Feb 9, 2012
i have a wireless deplyoment with WLC 5508, ACS 5.2 and several AD connected by LDAP. It is required that users are authenticated by certificates additional the user should only get access to the wireless environment when the user is found in a certain security group in the Microsoft AD forrest. The certificate based authentication is working without any problems, except the lookup into the AD isn't working. Here are the Details of the "Evaluting Identity Policy"
Evaluating Identity Policy
15004 Matched rule
22037 Authentication Passed
22023 Proceed to attribute retrieval
24031 Sending request to primary LDAP server
24016 Looking up user in LDAP Server - Alex Dersch
24008 User not found in LDAP Server
22015 Identity sequence continues to the next IDStore
24209 Looking up Host in Internal Hosts IDStore - Alex Dersch
24217 The host is not found in the internal hosts identity store.
22016 Identity sequence completed iterating the IDStores
but the user can access the WLAN just without verifying the user in the AD.
i tried the to enable Binary Comparisation but then the Authentication is not working any more. I get the same Identity Policy result as above.
i configured the Binary Comparisation as below:
I though with the binary comparisation i'll be able to verify the existance and the status of an user in the Active Directory.
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Jan 24, 2012
Does Cisco Secure ACS 5.3 support LDAP authentication with Apple Mac OS X server? One of our clients require an access control system. The major portion of the network consists of Apple Mac OS X 10.7 (Lion) Server and clients. They were using MAC-address based authentication along with LDAP through Cisco Wireless LAN Controller. But now the number of users has exceeded the maximum number of MAC addresses supported by WLC (2048). Hence we suggested ACS appliance to overcome the limit. My doubt is whether ACS 5.3 appliance can communicate with the Mac server and perform LDAP authentication.
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Jan 14, 2010
I've set up a ACS 5.1 Server an want to use it with our LDAP System. Therefor, I'm trying to login to a Cisco 1841 by using my LDAP Account, but it dosent work. The ACS seems not to know that it should use LDAP, because I get,"22056 Subject not found in applicable identity stores"LDAP is configured as Identitiy Store, the bind test works successfully and I created a sequence, where LDAP is at first position. What goes wron?? (TATACS for loal ACS Users works)
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Mar 15, 2012
I am setting up an LDAP identity store over ldaps in ACS 5.1. I specify that the connection uses secure authentication and provide the Root CA certificate. When I hit "Test Bind to Server", I get this error message in a popup window: "Connection test bind Failed :server certificate not found"Is this saying that ACS can't find the CA certificate uploaded, or does it mean the actual certificate presented by my LDAPS server during the bind test?
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Mar 22, 2011
i'm trying to configure acs 5.2 to LDAP external idenity store, when LDAP failes ACS 5.2 should use internal indenity store. I configured A sequence to use LDAP 1st then Internal and i shut off the link to the LDAP but ACS will not use internal, AAA Diagnostics keeps telling me that Cannot establish connection with LDAP server and will not use the internal store.
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Sep 27, 2012
I am working on project with Secure ACS 5.2. I am trying to determine the proper External Database to use. LDAP or direct to AD?
Additionally, the Domain that I am connecting to has Multiple sub domains. All of the users are currently in the Sub domains, but will be moving to root domain later. How should I configure the connection, do I need to connec to each sub domain or can I just connect to the root?
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Aug 28, 2012
I'm authenticating users against Active Directory and want to also check additionals attributes from LDAP. In ACS 5.3. it was possible to set this up via External Identity Sequence, but in ISE I don't see this possibility. I can set sequence only for authentication, but not for additional attribute retrieval.
When I set a condition in a policy that an LDAP attribute must match with some value, the attribute is not retrieved and autorization ends on default Deny Access.
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May 9, 2012
I have a problem where occasionally a user will attempt to login and the LDAP search will find the user but then fail when it does the group search. The error I get is below
22037 Authentication Passed
22023 Proceed to attribute retrieval
24032 Sending request to secondary LDAP server
24016 Looking up user in LDAP Server - testuser
24004 User search finished successfully
24027 Groups search ended with an error
24034 Secondary server failover. Switching to primary server
24031 Sending request to primary LDAP server
24016 Looking up user in LDAP Server - testuser
24004 User search finished successfully
24027 Groups search ended with an error
22059 The advanced option that is configured for process failure is used.
22062 The 'Drop' advanced option is configured in case of a failed authentication request.
Some users never get this error, others will get it once in a while and I have one user that gets it every time they try and login.
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Aug 19, 2012
Cisco 5508 wireless controllerCisco ACS 5.1LDAP connection I have setup the wireless controller to do RADUIS authentication with the ACS 5.1 using LDAP. The setup is currently working, Brief info below on setup.
I setup the PC client to use WPA2-Enterprise AES and authentication method CISCO PEAP. When I connect to the SSID this will prompt for a username and password. I will enter in my AD details and the ACS with the LDAP connection will authenicate and on the network I go.
Now I want to add machine authentication with CERTIFICATES, each laptop and pc in our network has CA certificates installed.
way that I can add these certificates into the ACS 5.1 so I pretty much want to import them into the ACS. Once they are imported inside I want the ACS to check that the certificates are on the PC and then prompt for the AD username and password, and only once it meets these two conditions it allows the workstation onto the network.So it will be a two form authentication one with certificates and the other ldap.
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Aug 2, 2011
I'd like to configure wireless access from winXP to authenticate with our corporate Novell LDAP through ACS
Setup:
WinXP SP3 --> WLC 4402 --> ACS 5.2 --> Novell LDAP
1. Our Novell LDAP server uses secure LDAP (port 636) to authentication user.On ACS 5.2, when we configure this option we need to select Root CA. Should the Root CA in ACS must be the same as the LDAP server's? (the LDAP's certificate issuer)
2. What kind of authentication that this setup supports? Does it support PEAP/MSCHAPv2 as in Windows Zero Configuration or it only supports PEAP-GTC, EAP-FAST, EAP-TLS (which means I have to use Intel Proset/Wireless software to configure).
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Dec 17, 2011
While configuring LDAP , I got struck in “Step 3 - Directory Organization”. How to make this work? My aim is to make users authenticated from their windows domain usernames and passwords while they log in to AAA clients.
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Feb 28, 2013
I've configure Ldap authentication on ASA 5545 to allow only a certain user group. I mapped the the memberOf group but this seems not to be working as it allows all AD users. [code]
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Sep 1, 2011
I have a ACS 4.2 under windows, I setuped it to authenticate routers by RADIUS and TACACS+ protocols. now I have some devices whitch know only LDAP protocol. How can setup ACS as a ldap server to authenticate those devices?>
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