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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Running ACS 5.1 appliance, and am seeing slow repsonse on TACACS authentications due to the ACS trying to reach overseas AD servers and failing. Is there any way to configure a /etc/host/ file locally on the ACS in order to force the appliance to use specific AD servers for authentication? As I understand the process currently, the ACS appliance will query the top-level domain and get a list of all the AD servers in DNS. In my case, this would include the AD servers overseas that we do not want to use.
View 1 Replies View RelatedI'm trying to configure an ASA firewall (FW2) for syslog and tacacs and am experiencing strange behavior. Both the syslog and ACS server are on the inside of another firewall (CoreFW). Whenever a log message is generated on FW2 the request is dropped by CoreFW and message '%ASA-4-313004: Denied ICMP type=0, from laddr FW2 on interface outside-b2b to syslog01: no matching session' is displayed. The same thing occurs for tacacs.
It appears that the syslog and ACS requests are generating ICMP echo replies, which the core firewall drops since no session exists on a lower security interface. I have access lists configured on CoreFW to allow the syslog and tacacs requests.
FW2 is running asa825-k8.bin, CoreFW is asa824-k8.bin
I have a problem implementing a NAR for a specific device group. I am running Cisco ACS 4.2 and it works fine for all the other stuff I do but this issue is perplexing me a bit.
I have a device group with Juniper devices in it and I authenticate using RADIUS (Juniper) as the radius setting. I have a Administration user group set up.
I placed a NAR into the group "Per Group Defined Network Access Restrictions" specific to the device group with * for port and address
I placed this group into both the Define IP-Based as well as the Define CLI/DNIS-based section.
No matter what I do I keep getting authenticated.
When I go to the passed authentications page I see my login and the group-name is identified correctly and the network device group is identified correctly too. The filter says "no filters activated". So how can I get this NAR to kick in? I would like to restrict one device group from a ACS user group.
We have customer with implementation ACS5.2 in Windows environment. Now they want to implement IP phones in the network.
View 0 Replies View RelatedI am having difficulties implementing Mac-auth on selected ports between an HP ProCurve 2510 and Cisco ACS 5.3.The 802.1x works just fine, but for selected ports I need to implement port-access with MAC-based authentication instead of regular 802.1X (yeah, I know, but this line of ProCurve switches only support one auth-mechanism per port!).The switch successfully forwards interesting MAC-auth requests for authentication to the ACS with CHAP/MD5, but the ACS reports this:
Logged At:
April 16,2012 1:20:48.080 PM
RADIUS Status:
Authentication failed : 22056 Subject not found in the applicable identity store(s). NAS Failure:
Username:
002655886b3d MAC/IP Address:
00-26-55-88-6b-3d Network Device:
[code].....
The ACS is configured to use the Internal Hosts database, where the client computer is configured like this;MAC-address: 00-26-55-88-6B-3D
I am managing a firewall over remotely in my LAN itself. I started a continous ping to the Firewall IP and the response is less than 1 ms.
While applying some access control list to the firewall via putty ...Suddenly the latency is going hing and it is hitting xxxx ms. And also the acl are getting pasted on the screen by word by word. Sometimes i used to get some RTO for the Firewall IP Address inth eping response.
find the Firewall Version:
Cisco ASA 5510
Version : 7.2
Having more than 600 ACL's.
Periodic Slow Response 2821 (300+ms, 1 minute) My solarwinds NPM reports very slow response times from my satellite clinic.Often times it is 300ms to 600ms when it should be 10-15ms. CPU does not seems to spike, the memmory does not seem to spike The bandwidth does not spike.It happens mostly during work hours about 10 times a day Solarwinds reports the delay and then 2 minutes later it reports normal activity
I have broadcast/multicast control on the switches? We have static route for our network meaning no routing protocols ?We have 12 other clinics with the same configs and they are fine?I have double checked the configs but I am not holding my breath on that item?I have rebooted the router without affect
I have not replaced the cable to the demarc on either side of the WAN connection?I have not reseated the service provider T1 cards?I have not reseated the T1 card on either router.
I'm using a cable connection with my router and most of the time I'm playing FIFA12 on PS3 i feel like the commands takes a second to respond, like if was a delay. I tried most of everything in firewall settings, port foward, internet settings...
View 4 Replies View RelatedI'm having issue with tacacs server(ACS 4.2), did the following test from the router:
Router1#test aaa group tacacs+ cisco cisco legacyAttempting authentication test to server-group tacacs+ using tacacs+No authoritative response from any server.I can ping the ACS server from this router though.
Inter-VLAN applications are slow and same VLAN it is working fine.(i.e.VLAN to VLAN applications and File transfer response was Slow).Switch Model number: WS-C3750G-24TS-S1U
View 3 Replies View RelatedHaving issues with HTTPS sites being very slow after applying KB2585542? Once you remove this Microsoft patch everything returns to normal. It appears that the CSS does not handle the split-ssl requests properly. I have opened a TAC case but am not really getting anywhere as we seem to be the only company that is having this issue.
View 2 Replies View RelatedEach time I'm rebooting my E3200 device my ping to my ISP is 20ms. Few hours later the ping goes up to 300-500ms.Than I reboot again and the ping is going down to 20ms again.
View 5 Replies View RelatedWe`re using a WLC 5508 with SW 7.2.103.0.The most things are working fine, but i have a problem with the web auth.
Setup:
- Max Concurrent Logins for a user name is set to 1
- Max-Login Ignore Identity Response is set to enable
- Web Authentication Type is set to customized
The Problem:
- the user "test" is logged in at device1 (working), the same user "test" try to login at device 2 (is not working, fine!) -> login is not accepted, WLC redirects to the INTERNAL Web Login Page.The problem is the redirect to the internal web login page after failed login. If i try to login with a not existing user, the redirect is working perfect to the customized web login.
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.
View 2 Replies View RelatedI 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.
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].....
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.
View 2 Replies View RelatedI 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.
View 6 Replies View RelatedI 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.
View 2 Replies View RelatedI 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.
View 10 Replies View RelatedACS 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?
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).
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.
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
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.
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]
View 1 Replies View RelatedI 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.
IS there a way to stop the Radius/Tacacs service in ACS 5.2 from the GUI ?
View 6 Replies View Relatedwe 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?
View 1 Replies View RelatedI'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?
View 1 Replies View RelatedHaving 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)
View 6 Replies View RelatedI 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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