ACS 4.0 and Win2k3 AD

I have downloaded and installed ACS 4.0 Trial Version. I was wondering if there is specific documentation available for integrating ACS with an external database - namely Active Directory?
I have a 3560 and an ACS 4.0 box configured and I cannot get any of my "test" PCs (all XP w/ SP2) to autheticate via dot1x to my AD DB. I am new to this so it is most likely my ignorance that is causing the problem.
Thx.

refer this link to configure windows as external DB .
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_soft/csacs4nt/csnt26/usergd26/ch3.htm#368606
regards,
Jasjeet

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Looking for successful auth debug between cisco 1113 acs 4.2 and Active Directory

Hello,
Does anyone have a successful authentication debug using cisco 1113 acs 4.2 and Active Directory? I'm not having success in setting this up and would like to see what a successful authentication debug looks. Below is my current situation:
Oct 6 13:52:23: TPLUS: Queuing AAA Authentication request 444 for processing
Oct 6 13:52:23: TPLUS: processing authentication start request id 444
Oct 6 13:52:23: TPLUS: Authentication start packet created for 444()
Oct 6 13:52:23: TPLUS: Using server 110.34.5.143
Oct 6 13:52:23: TPLUS(000001BC)/0/NB_WAIT/46130160: Started 5 sec timeout
Oct 6 13:52:23: TPLUS(000001BC)/0/NB_WAIT: socket event 2
Oct 6 13:52:23: T+: Version 192 (0xC0), type 1, seq 1, encryption 1
Oct 6 13:52:23: T+: session_id 763084134 (0x2D7BBD66), dlen 26 (0x1A)
Oct 6 13:52:23: T+: type:AUTHEN/START, priv_lvl:15 action:LOGIN ascii
Oct 6 13:52:23: T+: svc:LOGIN user_len:0 port_len:6 (0x6) raddr_len:12 (0xC) data_len:0
Oct 6 13:52:23: T+: user:
Oct 6 13:52:23: T+: port: tty515
Oct 6 13:52:23: T+: rem_addr: 10.10.10.10
Oct 6 13:52:23: T+: data:
Oct 6 13:52:23: T+: End Packet
Oct 6 13:52:23: TPLUS(000001BC)/0/NB_WAIT: wrote entire 38 bytes request
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: Would block while reading
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: read entire 12 header bytes (expect 16bytes data)
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:23: TPLUS(000001BC)/0/READ: read entire 28 bytes response
Oct 6 13:52:23: T+: Version 192 (0xC0), type 1, seq 2, encryption 1
Oct 6 13:52:23: T+: session_id 763084134 (0x2D7BBD66), dlen 16 (0x10)
Oct 6 13:52:23: T+: AUTHEN/REPLY status:4 flags:0x0 msg_len:10, data_len:0
Oct 6 13:52:23: T+: msg: Username:
Oct 6 13:52:23: T+: data:
Oct 6 13:52:23: T+: End Packet
Oct 6 13:52:23: TPLUS(000001BC)/0/46130160: Processing the reply packet
Oct 6 13:52:23: TPLUS: Received authen response status GET_USER (7)
Oct 6 13:52:30: TPLUS: Queuing AAA Authentication request 444 for processing
Oct 6 13:52:30: TPLUS: processing authentication continue request id 444
Oct 6 13:52:30: TPLUS: Authentication continue packet generated for 444
Oct 6 13:52:30: TPLUS(000001BC)/0/WRITE/46130160: Started 5 sec timeout
Oct 6 13:52:30: T+: Version 192 (0xC0), type 1, seq 3, encryption 1
Oct 6 13:52:30: T+: session_id 763084134 (0x2D7BBD66), dlen 15 (0xF)
Oct 6 13:52:30: T+: AUTHEN/CONT msg_len:10 (0xA), data_len:0 (0x0) flags:0x0
Oct 6 13:52:30: T+: User msg: <elided>
Oct 6 13:52:30: T+: User data:
Oct 6 13:52:30: T+: End Packet
Oct 6 13:52:30: TPLUS(000001BC)/0/WRITE: wrote entire 27 bytes request
Oct 6 13:52:30: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:30: TPLUS(000001BC)/0/READ: read entire 12 header bytes (expect 16bytes data)
Oct 6 13:52:30: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:30: TPLUS(000001BC)/0/READ: read entire 28 bytes response
Oct 6 13:52:30: T+: Version 192 (0xC0), type 1, seq 4, encryption 1
Oct 6 13:52:30: T+: session_id 763084134 (0x2D7BBD66), dlen 16 (0x10)
Oct 6 13:52:30: T+: AUTHEN/REPLY status:5 flags:0x1 msg_len:10, data_len:0
Oct 6 13:52:30: T+: msg: Password:
Oct 6 13:52:30: T+: data:
Oct 6 13:52:30: T+: End Packet
Oct 6 13:52:30: TPLUS(000001BC)/0/46130160: Processing the reply packet
Oct 6 13:52:30: TPLUS: Received authen response status GET_PASSWORD (8)
Oct 6 13:52:37: TPLUS: Queuing AAA Authentication request 444 for processing
Oct 6 13:52:37: TPLUS: processing authentication continue request id 444
Oct 6 13:52:37: TPLUS: Authentication continue packet generated for 444
Oct 6 13:52:37: TPLUS(000001BC)/0/WRITE/46130160: Started 5 sec timeout
Oct 6 13:52:37: T+: Version 192 (0xC0), type 1, seq 5, encryption 1
Oct 6 13:52:37: T+: session_id 763084134 (0x2D7BBD66), dlen 16 (0x10)
Oct 6 13:52:37: T+: AUTHEN/CONT msg_len:11 (0xB), data_len:0 (0x0) flags:0x0
Oct 6 13:52:37: T+: User msg: <elided>
Oct 6 13:52:37: T+: User data:
Oct 6 13:52:37: T+: End Packet
Oct 6 13:52:37: TPLUS(000001BC)/0/WRITE: wrote entire 28 bytes request
Oct 6 13:52:37: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:37: TPLUS(000001BC)/0/READ: read entire 12 header bytes (expect 33bytes data)
Oct 6 13:52:37: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:37: TPLUS(000001BC)/0/READ: read entire 45 bytes response
Oct 6 13:52:37: T+: Version 192 (0xC0), type 1, seq 6, encryption 1
Oct 6 13:52:37: T+: session_id 763084134 (0x2D7BBD66), dlen 33 (0x21)
Oct 6 13:52:37: T+: AUTHEN/REPLY status:7 flags:0x0 msg_len:27, data_len:0
Oct 6 13:52:37: T+: msg: Error during authentication
Oct 6 13:52:37: T+: data:
Oct 6 13:52:37: T+: End Packet
Oct 6 13:52:37: TPLUS(000001BC)/0/46130160: Processing the reply packet
Oct 6 13:52:37: TPLUS: Received Authen status error
Oct 6 13:52:37: TPLUS(000001BC)/0/REQ_WAIT/46130160: timed out
Oct 6 13:52:37: TPLUS(000001BC)/0/REQ_WAIT/46130160: No sock_ctx found while handling request timeout
Oct 6 13:52:37: TPLUS: Choosing next server 101.34.5.143
Oct 6 13:52:37: TPLUS(000001BC)/1/NB_WAIT/46130160: Started 5 sec timeout
Oct 6 13:52:37: TPLUS(000001BC)/46130160: releasing old socket 0
Oct 6 13:52:37: TPLUS(000001BC)/1/46130160: Processing the reply packet
Oct 6 13:52:49: TPLUS: Queuing AAA Authentication request 444 for processing
Oct 6 13:52:49: TPLUS: processing authentication start request id 444
Oct 6 13:52:49: TPLUS: Authentication start packet created for 444()
Oct 6 13:52:49: TPLUS: Using server 172.24.5.143
Oct 6 13:52:49: TPLUS(000001BC)/0/NB_WAIT/46130160: Started 5 sec timeout
Oct 6 13:52:49: TPLUS(000001BC)/0/NB_WAIT: socket event 2
Oct 6 13:52:49: T+: Version 192 (0xC0), type 1, seq 1, encryption 1
Oct 6 13:52:49: T+: session_id 1523308383 (0x5ACBD75F), dlen 26 (0x1A)
Oct 6 13:52:49: T+: type:AUTHEN/START, priv_lvl:15 action:LOGIN ascii
Oct 6 13:52:49: T+: svc:LOGIN user_len:0 port_len:6 (0x6) raddr_len:12 (0xC) data_len:0
Oct 6 13:52:49: T+: user:
Oct 6 13:52:49: T+: port: tty515
Oct 6 13:52:49: T+: rem_addr: 10.10.10.10
Oct 6 13:52:49: T+: data:
Oct 6 13:52:49: T+: End Packet
Oct 6 13:52:49: TPLUS(000001BC)/0/NB_WAIT: wrote entire 38 bytes request
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: Would block while reading
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: read entire 12 header bytes (expect 43bytes data)
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: socket event 1
Oct 6 13:52:49: TPLUS(000001BC)/0/READ: read entire 55 bytes response
Oct 6 13:52:49: T+: Version 192 (0xC0), type 1, seq 2, encryption 1
Oct 6 13:52:49: T+: session_id 1523308383 (0x5ACBD75F), dlen 43 (0x2B)
Oct 6 13:52:49: T+: AUTHEN/REPLY status:4 flags:0x0 msg_len:37, data_len:0
Oct 6 13:52:49: T+: msg: 0x0A User Access Verification 0x0A 0x0A Username:
Oct 6 13:52:49: T+: data:
Oct 6 13:52:49: T+: End Packet
Oct 6 13:52:49: TPLUS(000001BC)/0/46130160: Processing the reply packet
Oct 6 13:52:49: TPLUS: Received authen response status GET_USER (7)
The 1113 acs failed reports shows:
External DB is not operational
thanks,
james

Hi James,
We get External DB is not operational. Could you confirm if under External Databases > Unknown User Policy, and verify you have the AD/ Windows database at the top?
this error means the external server might not correctly configured on ACS external database section.
Another point is to make sure we have remote agent installed on supported windows server.
http://www.cisco.com/en/US/docs/net_mgmt/cisco_secure_access_control_server_for_solution_engine/4.2/installation/guide/remote_agent/rawi.html#wp289013
Also provide the Auth logs from the server running remote agent, e.g.:-
AUTH 10/25/2007 15:21:31 I 0376 1276 External DB [NTAuthenDLL.dll]:
Attempting Windows authentication for user v-michal
AUTH 10/25/2007 15:21:31 E 0376 1276 External DB [NTAuthenDLL.dll]: Windows
authentication FAILED (error 1783L)
thanks,
Vinay

ACS 5.5 and Windows 2012 AD support

Hi All,
previously I had two AD domains based on 2008 and had machines in one domain and users in another domain
and the condition statement "Was machine authenticated=True" worked fine when doing EAP-TLS machine then user
authentication.
I have now upgraded the machine's domain to 2012 and machine authentication works fine and user authentication
also works, but when you put the two together, and enable "Was machine authenticated=True" the ACS errors
out when doing user authentication with the message "ACS unable to find previous successful machine authentication"
even though machine authentication was successful. I have tried with with ACS being a member of both 2008 and 2012 domains at each stage.
The clients are all windows 8.1
Has anyone encountered this scenario before ?
TIA

I would like to share a good troubleshooting guide for ACS 5.X and later, Please have a look:
http://www.cisco.com/c/en/us/support/docs/security/secure-access-control-system/113485-acs5x-tshoot.html

Dacl on ACS 5.1 and Catalyst switch 3560

Dear all
I have ACS 5.1 and Catalyst switch 3560 with version 12.2(53)SE. I configure a dacl on the ACS and I use it on authorization profile.
This authrization profile is used on access policy.
I tried the authentication but it doesn't work. I checked the ACS logs and I found that the user is authenicated successfuly but the dacl gives this error (The Access-Request for the requested dACL is missing a cisco-av-pair attribute with the value aaa:event=acl-download. The request is rejected)
Steps:
11001 Received RADIUS Access-Request
11017 RADIUS created a new session
11025 The Access-Request for the requested dACL is missing a cisco-av-pair attribute with the value aaa:event=acl-download. The request is rejected
11003 Returned RADIUS Access-Reject
DACL:
deny ip host 1.2.3.4 1.2.3.0 0.0.0.255 log
permit ip any any log
Thanks on advance,

Dear Tiago
I applied the command "radius-server vsa send". Now I can see the dacl is applied but I can't see it on the switch and even the authentication is succueeded ont the ACS logs but it give me unauthoized on the switchport. You can see the logs( started with the username acstest and the access-list is applied but it doesn't work and you can see theat it goes for mab after eap timed out). I hope you can help on this issue.
Dec 13,10 10:29:00.513 AM
00-23-AE-7A-58-A6
00-23-AE-7A-58-A6
Default Network Access
Lookup
Dot1x-3560-Switch
1.2.3.4
FastEthernet0/5
TESTACS
22056 Subject not found in the applicable identity store(s).
Dec 13,10 10:28:29.186 AM
#ACSACL#-IP-Guest-4cfcc14d
Dot1x-3560-Switch
1.2.3.4
TESTACS
Dec 13,10 10:28:28.726 AM
acstest
00-23-AE-7A-58-A6
Default Network Access
PEAP (EAP-MSCHAPv2)
Dot1x-3560-Switch
1.2.3.4
FastEthernet0/5
TESTACS
Thanks,

ACS 4.0 and RSA Token Server problem

Hi,
We are having a problem trying to get ACS 4.0 for Windows to authenticate wireless users on an RSA Token server.
Our Cisco 1200 series AP is configured for WPA2 and LEAP authentication. It points at the ACS server for RADIUS authentication. Now this works fine for users with a static password defined on the ACS internal database. However, for obvious security reasons, we?d like the authentication passed to our internal RSA server.
I have installed the RSA Agent on the same server as the ACS along (after adding the generated sdconf.rec file to the System32 folder). The RSA server has been added to the ACS external databases and a user configured to use the RSA Token server for password.
When we try to authenticate, the ACS fails the attempt with reason ?External DB password invalid?. The same user can successfully authenticate when using the RSA test authentication tool which is installed on the ACS server as part of the RSA Agent software.
After running some debugs on a PIX in front of the servers, I can see traffic to/from the servers when using the test tool (which works), however it looks like ACS doesn?t even send traffic to the RSA server when authenticating.
Any help or advice appreciated.
Thanks

Hi,
The token servers only support PAP. Please make sure that the request are going to the RSA in PAP.
Following link talks about the same.
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_soft/csacs4nt/acs40/user/o.htm#wp824733
Regards,
~JG

ACS database users and passwords.

Hi, i need to get all users and passwords from a acs 3.3 database unencrypted.
How can i do it?
Could you help me ?

To get a list of the USers in the ACS database use the CSUTIL tool on Windows platform.
go to bin directory under the ACS install folder and do
CSUtil.exe -u
this will generate a file "users.txt" in the same folder.
But I dont think you can get the password in unencrypted form.

ACS, Access Service and Authorization

I am running ACS 5.2 and I am trying to set up 3 new SSIDs, 2 of which are unsecured and 1 that is secured. I am trying to figure out the best way to authorize them based on which network they are coming from. All the authentication requests are coming from the same devices, the Wireless LAN Controllers, so NDG cannot be used as criteria. I have been looking at either creating 3 Access Services and using Service Selection Rules, or creating 1 Access Service and using Authorization to choose. Regardless, I cannot find an attribute to use that can determine which network they came from.
Does anyone have a suggestion for the best way to do this? I

Go to in Policy Elements -> Network Conditions -> End Station Filters, and create a CLI/DNIS rule that includes the name of the SSID, then use it as a condition in any rule you create for authentication. The SSID will be preceded by the MAC address, so enter *ssidname (ie, match anything before the SSID name, then match the SSID name). For example, if the SSID is called lab then you would enter *lab.
Then go to Access Policies -> Service Selection and create a service selection rule that has End Station Filter as the criteria.

ACS Group mapping and restrictions

hi,
I would appreciate to receive some configuration steps on ACS to fulfill the following requirement and hope you can help me.
ACS Groups
Netadmin - need telnet/ssh/vpn/wireless
wireless - only wireless authentication
vpn - only vpn authenticaiton
I need to map the above ACS groups to one/or many AD groups and restric access as stated above.
Also please note that one user can be belongs to all three groups in ACS/AD.
thanks in advance.

In ACS user can only belong to one group. But in AD we can have one user a part of multiple group.
In this scenario, it is very important to understand how ACS group mapping works.
Lets say that you have three different groups on AD for NetworkAdmin, RouterAdmin, Wireless. Go to external user database ==Database Group Mappings==Windows NT/2000==select the domain to which you are authenticating==Add mapping.
Select the AD group NetworkAdmin and map it to ciscosecure group 1
select the AD group RouterAdmin and map it to ciscosecure group 2
select the AD group Wireless and map it to ciscosecure group 3
Group mappings work in the order in which they are defined, first configured mapping is looked upon first then second, third and so on. If a user is in AD group NetworkAdmin and that is mapped to ACS group 1 and it is first configured mapping it will be looked for FIRST (If a user exists in NetworkAdmin group it will always be mapped to ciscosecure group 1 and NO further Mappings for this user is checked and user is authenticated or rejected)
Scenario: if you have a user called cisco, in NetworkAdmin group, cisco1 in RouterAdmin group, and cisco2 in Wireless. They will always be dynamically mapped to ACS group 1, 2 and 3 respectively as per above mappings.
You can check the mappings on the passed authentications for users as to what group are they getting mapped to.
SCENARIO:
Now if you want a NetworkAdmin user to authenticate to NetworkAdmin devices and not wireless or RouterAdmin devices you would need to apply NARs to group 1 because NetworkAdmin users are connecting to that group. Which you will permit Access on group basis to a particular NetworkAdmin NDG or individual NetworkAdmin NAS device.
NOTE:
If you are applying NARs for Wireless or VPN devices.. you would need to configure both IP based AND CLI/DNIS based together because NARs were originally designed for cisco IOS for
routers and switches.
IMPORTANT: If a user successfully authenticates to AD database once, its username is cached on the ACS database (NOT password) the only way to remove the previously cached
username is to go to usersetup find that user and delete it manually.
ACS will not support the following configuration:
*An active directory user that is a member of 3 AD groups (group A, B and C) *Those 3 groups are mapped within ACS as follows Group1->A,Group2->B and Group3->C.
*The user is in all 3 groups however he will always be authenticated by group 1 because that is the first group he appears in, even if there is a NAR configured assigning specific AAA clients to the group.
However there if your mappings are in below order...
NT Groups ACS groups
A,B,C =============> Group 1
A =============> Group 2
B =============> Group 3
C =============> Group 4.
You can create a DIFFERENT rule for the users in A,B,C by configuring the NARs in group1.
This rule WILL apply for the use ONLY if he is present in ALL three groups (A,B and C).
You can create a rule for users in group A (Group 2)
You can create a rule for users in group B (Group 3)
You can create a rule for users in group C (Group 4)
Regards,
~JG
Do rate helpful posts

Question in ACS radius ports and how test connectivity between router

hi all
im asking here about default ports used in cisco acs for radius protocol
is it 1812 and 1813 ???
or there is another ports ??
Q2-
how to test connectivity between ACS "server aaa" and the router "client aaa " ??????
Q3-
can anyone give me simple config on router for radius protocol to connect acs based on radius protocol ?
regards

The default authentictaion port is 1812 and the default accounting port is 1813.
Here's an example config-
aaa new-model
aaa group server radius ACME-RADIUS
server-private 192.168.1.5 auth-port 1812 acct-port 1813 key SeCrEtPaSsWoRd
aaa authentication login default local
aaa authentication login ACME-AAA group ACME-RADIUS local
aaa accounting send stop-record authentication failure
aaa accounting exec default start-stop group ACME-RADIUS
line vty 0 4
login authentication ACME-AAA
You can test with-
test aaa group radius server 192.168.1.5 mmessier St@nleyCup
where mmessier is your username and the password is St@nleyCup

ACS 5.1 and 5.2 logs issue

Hi All,
I am having a lab set up with 2 ACS 5.1 and other with ACS 5.2. I am unable to see the logs for more than 2 days.The degault pathe is ... monitoring and reports > catalog AAA protocol > RADIUS Accounting. The problem is, if i need the logs for 7 days or more i can see only for last 2 days. Even on the CLI i tried to download, the format which i am getting is not readable and moreover i am able to see only for last 2 days. I raised a tac with cisco and their update to upgrade the s/w form 5.1 to 5.2.
Also the ACS which is having 5.1 is in production so i cant upgrade now . But i upgrade the other ACS from 5.1 to 5.2 and i ahve restored all the files from the production to lab ACS.
Now i am facing challenege in restoring the logs from 5.1 production to 5.2 lab setp.
Kindly help us to reslove the issue.
regards,
krishna

Hi Qobi,
In the RSA identity store properties you have the following option :
This Identity Store does not differentiate between 'authentication failed' and 'user not found' when an authentication attempt is rejected. From the options below, select how such an authentication reject from the Identity Store should be interpreted by ACS for Identity Policy processing and reporting .
Treat Rejects as 'authentication failed'
Treat Rejects as 'user not found'
And also, under your access service policy, if you click on "identity" you will be able to select "continue if user not found". Screenshot attached.
Hope this helps.
Nicolas
===
Don't forget to rate answers that you find useful

WLC / ACS / AD - Domain and non-Domain Laptops (802.1X / PEAP)

Hi All,
I'm implementing a solution based around 4404 WLC, 1113 ACS and Microsoft AD. What I want to achieve is have two WLAN (SSID), one that can only be used by domain users on domain laptops, the other can be used by domain users on personal laptops. The domain laptops will have full connectivity but the personal laptops will be restricted.
I've created the two SSID using 802.1X via ACS / Remote Agent and can authenticate and logon OK.
I thought that I should have user auth and machine auth for the domain laptops but just user auth for personal laptops.
I can have non authenticated machines go to a specific ACS group or blocked but I need to allow them if they're on the restricted SSID. I can't quite figure out how to have two SSIDs authenticating to the same ACS / AD - allow one and block the other.
Am I on the right path?
Anyone done this before or have any bright ideas?
Cheers,
John

With the use of SSID-based WLAN access, the users can be authenticated based on the SSID they use in order to connect to the WLAN. The Cisco Secure ACS server is used to authenticate the users. Authentication happens in two stages on the Cisco Secure ACS:
1. EAP authentication
2. SSID authentication based on Network Access Restrictions (NARs) on Cisco Secure ACS
For the further description and configuraiton following URL may help you :
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00807669af.shtml

Difference between ACS Administrator account and ACS user account?

Does an ACS administrator by default have full rights to every device it manages?
I thought ACS administator accounts and user accounts were different.
I have an acs admin account called admin_1. then i created another user account called admin_1 (for switch/router access)
when i set the password for admin_1(user accounts), when i tried to login into the switch it wouldn't take. It would only take the password set for the ACS admin account.
Is this by design?

My understanding was that this is not the case, Ive just tested my installation again to make double sure and the user accounts and the admin accounts are clearly seperated
The RADIUS server does not make use of the Admin user database.

ACS 5.3 and Windows AD account lockout

Currently on 5.3.0.40.2 when a invalid password is attempted via TACACS or RADIUS to the AD identity store is locks the account out on the first failed attempt. The AD policy is lockout after three attempts. Is there a way to fix this issue so the account is not locked out with only one failed attempt? I see options for local password policys in ACS but nothing for the identity store. For what its worth this happened also with ACS 4.X deployment before we moved to ACS 5.3.
Just wanted to see if this is the expected behavior or if I should open a TAC case to see what is causing this.
Thanks.

Hi;
Well, we got it working. Not sure of the exact fix, but allow me to ramble, perhaps it will help someone else.
We think that a combinationof factors caused the problem. First, we had clock drift, and that resulted in clock skew messages in the logs like these:
Sep 20 18:06:03 ecb-acs1 adclient[8322]: INFO base.adagent start: Problem connecting to domain controller (KDC refused skey: Clock skew too great), will try again later.
and
ecb-acs1 adclient[1163]: WARN base.bind.cache LDAP fetch CN=bubba,OU=staff,OU=edcenter,OU=edcenterarea,OU=episd,DC=episd,DC=org threw unexpected exception: SASL bind to ldap/[email protected] - GSSAPI Mechanism with Kerberos error ": Clock skew too great"
Somehow the ACS lost the ntp config, very disturbing, because I know that one of the first things I did was setup NTP. So I re-did the ntp config, confirmed the time was accurate. Still failed. Then, because I was annoyed by the log entries comning out in UTC, I did a clock timezone to set it to local. That made the logs come out in local time, but might have caused other problems (I saw another forum entry for that) so I set it back to UTC.
This begs the question - how to leave the timezone at UTC but fix the timestamps for the logs? This is easy on Cisco switches.
Various reboots of the ACS after deleting the object in AD did not fix the problem. During these reboots I continued to use the original userid and password to authenticate. At all times, the "test connection" button showed that the credentials were OK.
Because we had recently added our first Win2008 domain controller to our world (all ther other DCs are Win2k3), we started worrying about this:
http://support.microsoft.com/kb/978055/en-us
But, after some checking, it seems as if we already had the fix applied.
Next, we created a dedicated user in AD for the ACS to use when authenticating. Deleted the ACS object, restarted the ACS, applied those new credentials. Still broken.
Our AD admin looked in various logs and found some things, here is his summary:
----------- from Danny --------
Checked the domain controller log under system. Found the following:
While processing an AS request for target service krbtgt, the account ecb-acs1$ did not have a suitable key for generating a Kerberos ticket (the missing key has an ID of 1). The requested etypes : 17. The accounts available etypes : 23 -133 -128 3 1. Changing or resetting the password of ecb-acs1$ will generate a proper key.
and
While processing an AS request for target service krbtgt, the account stcrye did not have a suitable key for generating a Kerberos ticket (the missing key has an ID of 2). The requested etypes : 18. The accounts available etypes : 23 -133 -128 3 1. Changing or resetting the password of stcrye will generate a proper key.
This may be related to either clock scew between acs and the domain or introducing server 2008 domain controllers into an existing server 2003 domain.
On a desperate hunch, after yet again deleting the ACS object in AD and reloading the ACS, I used the new dedicated ACS user account, but gave it a wrong password. Hit save, watched it fail. Then I put in the correct password, hit save, and it worked! Finall we have re-joined and are connected to the domain.
BUT ... I have now lost all confidence in ACS 5.3 . We are in the middle of a major rollout of WiFi clients using 802.1x authentitcation, replacing our previous pre-shared WPA setup. We are talking > 20,000 WiFi clients. If ACS <--> AD is not rock-solid, I need to try something else. Should we consider using LDAPS instead?
Steve

Acs 5.3 and wlc 2504 config with restricted network access

Hello,
i submit you the following issue that i'm actually facing:
i must configure a secured wireless network with access restriction based on SSID. the equipements are : cisco wlc 2504 (soft 7.3) cisco secure acs aplliance 1121 (soft 5.4) .
the users that will connect to the network are regrouped by identity groups, each identity group having it's own SSID. Clearly each group of users must access only one SSID.
i followed the procedure below to configure it:
-- creating user identity groups;
-- creating users and assigning them to the groups;
--- creating authorization profiles for each SSID under policy element/ authorization and permission/network access/authorization profiles and putting the Airespace-Wlan-Id(the SSID number) in the radius tab.
--- assigning the authorization profiles to the identity groups under access policies.
after all these config the users can access the network using there userid/password configured. But the problem is Every user can access every SSID, seems like the restriction is so not very well configured.
i found some documentation on this kind of config but the version of ACS used seems older than the one that i use, so menu are very different.
Please can someone provide with the right steps to follow to achieve this kind of config.
tkx in advance

Yes.. you only have to add the end filter like what I posted... as far as the calling station id in the WLC security tab, it doesn't matter because that is not used when using 802.1x. I would also try to not enable everything that you have just to start from the basic and make sure it works first. The WAP Authentication Method might or might not work for you. Uncheck that for now and when you have a successful authentication, look at the monitor log and see what radius attributes are being sent, because those attributes is what you can use to build your policies.
Thanks,
Scott
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ACS 5.3 and Command Auth

I am rolling out the Latest 5.3.0.40.6 patched ACS 1121 in a redundant pair mode.   I have build user based auth without issue but am having an issue with Command auth. once I add command auth to the test router and modify the shell profile and command set for privilege 1 nd 15, none of the commands are authenticated and the report indicates the "DenyCommand" default. I have followed the user guide and the step by step from Security Solutions. ( link below)
I still get no joy.   Also Cisco changed the GUI and the way command sets are built
(http://www.security-solutions.co.za/Cisco-ACS-5.2-Role-Based-Authentication-Authorization-For-Different-Privilege-Levels-Configuration-Example.html )
Any help would be appreciated
Patrick Connor

Tarik, thanks for the response. I cannot get screen shots but can define the options sets.
I created 2 command sets
Pri-15 has only the permit all command not in the table below check box checked
Pri-1 has a single permit "show" with no arguments
the Auth rule has 2 rules
rule 1 identity group "network Admin" any any any pri-15
rule 2 identity group "network monitor" any any any pri-1
service selection rule    rule 1 condition ( match system: protocol match TACACS) result Default Device Admin   hit count 98
the report indicated the a FAIL "13025 command failed to match a Permit rule) and the Selected Command Set = (DentAllCommands)
So it looks like the command set is not being recognized. but I cannot see why?
Thanks,
Pat

ACS 4.0 and Win2k3 AD

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