Cisco AAA/Identity/Nac :: Acs Is Not Receiving Tacacs Requests From Juniper SSG140
Dec 11, 2011
I have configured ACS 5.1 and using Tacacs. I have two juniper SSG140 FW's in different subnet. Tacacs authentication is working on one SSG140 FW, but not on the other one. Tacacs configuration on both FW's are exactly the same. Both FW's have been added in the ACS server with the same shared secret key same profile etc. I don't even see the authentication requests from the FW. ACS can ping both FW's and vice versa. [code]
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Dec 20, 2009
Having an issue with authenticating Juniper J Series and SRX devices with ACS 5.1 The devices can authenticate using TACACS to ACS 5.1 via the CLI (telnet / ssh connections) but cannot using the JWEB management page.Doing packet captures between the Juniper devices and the ACS 5.1 box shows the Authenticate phase passing, but it does not progress onto the Authorisation phase. There is nothing of interest in the ACS Logs (Even with the debugging levels turned right up) The same Access service is in use for both the CLI and GUI (JWEB).Using ACS 4.1, both CLI and JWEB authentication works.[URL]I'm thinking the issue is with ACS 5.0 / 5.1 and it maybe not liking the response from the Juniper (even though it should be the same mechanism)
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Oct 21, 2011
I wants to inegrate Juniper netscreen firewall in Tacacs Cisco Acs 5.1.As I go through Juniper KB which mentioned that I need to enable Netscreen Service in Cisco ACS 5.1. how to enable Netscreen service in Cisco Acs 5.1 and how I got Further to integrate Juniper Netscreen Device in Cisco cs 5.1
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Aug 9, 2011
I am trying add custom attributes for Juniper Netscreen TACACS+ authentication to a v5.2 ACS. The advice is to add it to the group as follows:
ervice = netscreen {
vsys = root
privilege = read-write
} I know how to add this to a version v4.x ACS
However, I do not know how to apply this to the custom attribiutes to a v5.x ACS?do I add the vsys and privilege attribute seperately or together? What should be the attribute name? netscreen? Should it be mandatory?
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May 29, 2013
I have set up an ACS 5.4 box and have some test devices connected to it.Cisco and Juniper, both working fine using TACACS I can connect to both using SSH or Telnet but my problem is the J-Web Juniper GUI I can access the J-web no problem with the root account. i can not seem to get it to work, no matter what I try. Here is my shell from the ACS box And the following Juniper configuration. I have tried binding the local-user-name attribute to both the remote and remoteadmin with no luck.
version 9.6R1.13;
system {
host-name Juniper-Firewall;
authentication-order [ tacplus password ];
root-authentication {
encrypted-password "$1$1tRuy9o2$LwSPxNwe4XGNMOMIMo1pd1"; ## SECRET-DATA
[code].....
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May 24, 2011
I am trying to authenticate on Juniper NSM express using cisco ACS 5.2. The request is arriving at the cisco ACS but i am getting the following error.RADIUS requests can only be processed by Access Services that are of type Network Access.
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May 5, 2013
In the process of migrating from ACS 4.1 to ACS 5.3. Authentication works fine, but having issues with authorization on the Juniper WXC-3400 devices. In ACS 4.1 we were passing TACACS+Shell (exec) Custom attributes Privilege level=15, which allowed a user to login with read/write privileges. In ACS 5.3 tried setting the Shell Profiles common task to 15 for both Default and Maximum (one at a time, and together), as well as setting the Custom Attributes for priv-lvl=15 (with and without Common Tasks set).
A capture shows Auth Status: 0x11 (ERROR).
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Apr 10, 2013
i changed from ACS 4 to ACS 5.2. Everything works fine but i have authentication failed in the Radius accouting reports every time when users connect through ASA or Juniper into our network. Juniper amd ASA only send accounting informations to ACS. The users are not configured on the ACS, authentication is done via external LDAP. So my question is why do o see authentication error on ACS because Juniper and ASA only send accounting packets ?
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Jun 3, 2011
Several of my older netscreen devices only support radius authentication and I'm having trouble migrating them from ACS 4.2 to ACS 5.1. When I try to authenticate, the authentication passes in ACS but it doesn't log you into the Netscreen (you see a auth failure in the Netscreen logs). I believe that the custom attributes are not being passed from ACS to the Netscreen. The custom attribute we are trying to pass is "NS-Admin-Privilege" with type integer and a value of 2. The netscreen is setup so that the user privledges are obtained from the ACS server.
Any setup where they are using Cisco radius authentication to authenticate Netscreen devices?
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Mar 17, 2011
I am using ACS5.1 connected to WLC (v7.x) and frequently see host auth requests in the ACS logs. I am not interested in seeing host auth requests at all. Is there anyway just to ignore these.The issue is that these will always fail. If I enable the lock out facility within WLC and a host continually tries to auth the WLC will lock-out that mac address meaning that when the user is ready to connect with their own credentials they are unable to as the WLC is blocking that mac address from connecting to the wireless network.I tried disabling the 'process host lookup' option, but this apparently only changes the type of request to appear like a standard PAP auth request which again fails, filling up my RADIUS logs and stopping me from enabling the WLC lookout feature.So, as I say, I want to simply ignore host requests. I have no control over the end points so am unable to go and update config etc of these devices.
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Jul 19, 2012
We are using version 5.3 with patch 5. Incremental and full backup are configured but every day we receive an alarm notification.
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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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May 24, 2011
I think i've got everything set up to authenticate against AD for Tacacs+ device logins. When i check the logs, i see:"24408 User authentication against Active Directory failed since user has entered the wrong password". This leads me to believe that it is checking AD correctly, however if i enter the password correctly for the same AD user, there is no log at all...no pass, no fail.
If i look at the Tacacs debugs on the switch, i see the following:May 25 10:55:07.927 CDT: TAC+: ver=192 id=874699084 received AUTHEN status = ERRORMay 25 10:55:09.932 CDT: TAC+: send abort reason=Unknown
Obviously the switch is communicating to ACS, and ACS is passing info back to the switch. ACS also appears to be communicating effectively with AD since it knows when i put in an incorrect password for the specific user.
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May 9, 2013
We have a distributed ACS 5.3 set up - a PR and DR replicating successfully.I've set up 4 remote syslog targets. 2 of them are at the same site as the PR ACS and 2 are at the same site as the DR ACS.The logging collector is set on the PR ACS.
The problem is that it "appears" that PR ACS is only sending PR ACS syslog info to one of the remote syslog targets out of the four.
The syslog target which does receive from the PR ACS is at the same site as the PR ACS.
"appears" means that some one has looked on the syslog targets to see what's been received / or not received.
I've been told that the syslog traffic for syslog targets is being received from the DR ACS. Which is strange as the PR ACS is the actual log collector (and is not at the same site as the DR ACS).
I've also got Alarm Syslog targets set up on the PR ACS , (2 are the same ip addresses used in the 4 remote syslog targets). IP addresses of the remote syslog targets have been double checked and can be pinged from each ACS (PR and DR).
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Sep 13, 2011
I tried to configure TACACS+ authentication / authorization for NCS via ACS 4.2. For that I followed the configuration guide:
1. Configured the service for NCS with HTTP (see attachment)
2. Added the tasks to the user (see attachment)
When I try to login on the NCS it fails, in the logs on the NCS I see the following lines:
09/14/11 16:53:03.333 TRACE [system] [http-443-7] [TACACS+ AAAModule] Creating authorization socket - To Server: 192.168.49.14 - For User: netadmin
09/14/11 16:53:03.335 TRACE [system] [http-443-7] [TACACS+ AAAModule] Sending authorization request packet - To Server: 192.168.49.14 - For User: netadmin
09/14/11 16:53:03.336 TRACE [system] [http-443-7] [TACACS+ AAAModule] Receiving authorization response packet - From Server: 192.168.49.14 - For User: netadmin
[code].....
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Feb 27, 2011
I found that TACACS should be available for network access with ACS 5.2:(url) But when I'm trying to create Rule tu allow PPP authentication against TACACS server I get error.
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Sep 20, 2011
I am running ACS 4.1.1.23 on a Microsoft server and I am trying to get TACACS to work with two Linux servers. The servers are capable of TACACS, are using port 49 and have the correct shared secret. I believe I do not have the devices configured properly on the ACS side. These 2 servers currently are using RADIUS and we are getting bit by the bug where the ACS application will start rejecting RADIUS authentication requests but still accept TACACS requests.
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May 14, 2013
I am setting up reports for tacacs accounting on ACS 5.3. However, accounting only seems to work after entering enable mode on the switch. I would like to see all commands, even the enable command when in privlage 1 mode.
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Mar 4, 2012
I can get it to authenticate. But I've read some posts on ACS 4.2 and authorization, but I don't find anything similar.I want to control down to what commands the authenticated user can run. I want the defintion to come from the ACS server, or at least control it from the ACS server. I want to minimize the changes on the JunOS side,but if it can't be easily done, I'll change the JunOS side.
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Nov 14, 2012
ACS 5.3 configured with two rules, 1 rule for standard level 15 access for the Network Engineers and a 2nd rule to allow some limited access to switches: The limited access account has enough command set access to change the vlan on a switchport, so Configure Terminal, Interface FAx/x and switchport access vlan x.
Switch configuration:
aaa authentication login default group tacacs+ local
aaa authentication enable default group tacacs+ enable
aaa authorization console
aaa authorization config-commands
aaa authorization exec default group tacacs+ local
aaa authorization commands 0 default group tacacs+ local
aaa authorization commands 1 default group tacacs+ local
aaa authorization commands 15 default group tacacs+ local
aaa session-id common
Everything works well and the limited access users can only perform the commands i've setup.
Problem:The problem i've encountered is when one of the network engineers makes a change that would stop the device from being able to see the ACS server it stops allowing any commands to be typed in the router/switch. Additionally if you then connect to the device and login with the local username and password the device then waits for it to hit the TACACS server timeout for every command you enter. This is obviously very slow and painful for the engineer.
Question:Is there a way to set this up so the engineer logging in with full Level 15 access doesn't have to have each command authorized by the ACS server but still allow the limited access accounts to be able to make interface changes?
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Aug 14, 2011
So far i managed my switches with TACACS+, however now i've to deploy 802.1X, requiring RADIUS only. For what i know, ACS (i'm using 4.2) allows to define a device using only TACACS or RADIUS, but not both. Do i am right? Or there is a way to define an AAA client to communicate with the same ACS using both the protocols?
Supposing i am right, i was then considering the following options: - configure all of the switches to use radius for any service (authentication, authorization etc ec) This simplifies the task, but i lose the TACACS+ services for the switches. Is this a big loss?
- configure the L3 switches to use a second Loopback, just for RADIUS services. This would allow to still use the TACACS+ but would require a new network just for the RADIUS service; furthermore L2 switches doesn't support two IP addresses and would require anyway a migration to RADIUS.
A considerable administrative overhead, in other words. I'm not willing to deploy a second RADIUS (ACS, Windows, whatever), in this moment.
The key point is this: reading around i see Cisco documentation recommending always to use TACACS+ for management, but in this situation is not possibile. In general, every time the device has a role of network admission (switch or access-point) RADIUS seems to be the protocol of choice. Moving to RADIUS would have some major drawback or only a change in the communication protocol? (I know the difference between TACACS+ and RADIUS: tcp vs udp, encryption of the whole packet vs encryption of only the password).
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May 1, 2013
I want to setup two factor authentication via ACS 5.2 TACACS+ without having to use a token (such as that by RSA). Is there a way to do it?
More info:
Users from unconnected AD domains will be connecting to the routers and switches.There is a certificate server available to generate certificates.SSHv2 is the current login protocol.
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Jan 15, 2012
Noticed tacacs authorization logs when you change password for a user ?? in authorization logs I can see the new password but same I can not see in accounting logs ? is it a normal behaviour ?? or do we need to do something to hide the password in authorization logs ?
For example if i type command username xyz priv 15 secret cisco 123
I see this command in accounting logs as uername xyz oriv 15 secret *** where as in tacacs authorization logs it shows username xyz priv 15 secret cisco 123
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May 14, 2013
I am trying to access an ASA 5545 using TACACS+. I have the ASA configured as follows:
aaa-server tacacs+ protocol tacacs+
aaa-server tacacs+ (inside) host 10.x.x.x
[code]....
I have added the ASA in ACS with the correct IP and the correct key. When I try to test the authentication via test aaa-server authentication tacacs+ host 10.x.x.x username Cisco password Cisco, I get:
ERROR: Authentication Server not responding: No error.
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Mar 8, 2012
I have several 2950 switches that I cannot get to work with TACACS. I'm using the same config for these that I am using for other cisco switches. [code]
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Aug 6, 2012
I have ACS 5.2 and JUNOS 10.6.x I setup 2 classes eng-class and ops-class with read/write and read-only permission here is my configuration on JUNOS
set system login class eng-class idle-timeout 15
set system login class eng-class permissions all
set system login user engineer full-name “Regional-Engineering”
set system login user engineer uid 2001
set system login user engineer class eng-class
set system login user engineer authentication plain-text-password xxxxxxx
[code]....
I have 2 separate Authorization policies for engineer and operator group.Result,
1. engineering group is working fine.
2. the operator group its not working im unable to login to device under this group "authentication failed" but on the ACS logs its successfully authenticated.
3. Web authentication is not also working for bot group.
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Jul 11, 2011
IS there a way to stop the Radius/Tacacs service in ACS 5.2 from the GUI ?
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Jun 27, 2012
we have a ACS server V4 installed on W2003 server ,when we make a telnet to an equipement on the wan the authentication pass on the first connexion ,but when we telent to a switch on the lan the first connxion fails and we need to retry to login .when i check the field attempt log on the ACS i dont find the field attempt.i find this issue in ALL switch on the LAN ,from the switch i can ping the the ACS server .this problem appear frequently?
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Aug 30, 2011
I've set up my 5540 ASA to accounting commands on TACACS+.Every moviment done through ASDM is logged on TACACS+ by this form: cmd=perfmon interval 10.What does that mean?Why doesn't it record the exaclty command I'd issued?
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Sep 30, 2012
After implementing TACACS, one of our routers takes about 8 seconds to response to any CLI command. We have no problems with other devices in the same location with the same AAA configuration. The router is talking to the ACS server (ACS 5.3) and the logs on the ACS server look normal for the router as well.
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Feb 2, 2013
I am trying to configure ACS 5.2 to do all authentication against Microsoft AD, but use local identity groups to determine TACACS+ authorization.
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Jun 26, 2012
I'm currently evaluating a scenario where AAA request are load balanced across multiple ACS 5.3 instances. The application delivery controller runs in L3 mode, which naturally causes the original packet's source IP address to be replaced by a randomly selected proxy address.As far as RADIUS is concerned, I can perfectly determine the originating NAS by means of a 'Device Filter' condition. Unfortunately, ACS seems to lack the possibility of achieving the same for TACACS+. According to the user manual, only the actual IP address from the received packet is taken into account. I've also come across the 'NAS-Address' attribute in the protocol dictionary, but it can't be used in a custom condition either.how to retrieve the initial device IP address from a TACACS+ request in order to use it for further policing?
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Jan 3, 2012
I am having an issue with authorization on the Nexus 5548. Note: The tacacs configuration has and still works correctly with all non-Nexus gear.
Authentication succeeds, and initiatial authorization passes. However, all sh and config commands fail, though AAA Autho Config-Commands .... and Commands Default Group <Grp Name), are configured.
ACS generates the following error: 13025 Command failed to match a Permit rule. The Selected Command Set is DenyAllCommands. I created an AllowAll, but am unclear how to associate this with Access Policy.
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