Aaa authorization is confusing

hi...this command make me mess for many times :(. is it true aaa authorization can return acl and time for user? how aaa authorization know what user will be associated in case aaa authentication is aaa authentication login default local? for make it more complete...is aaa authorization only work with tacacs? tx a lot ;)

Hi,
If the tacacs server fails to respond, then local network authorization will be performed.
Assuming this command: aaa authorization network test tacacs local.
Keep in mind that only a limited set of functions can be controlled via the local database.
HTH
Regards,
Bjornarsb

Similar Messages

Command confusion - aaa authorization config-commands

I created a new Shell Command Authorization Set within ACS to only allow a port to be configured for a voice VLAN.
>> Shell Command Authorization Sets
      Name: Restricted_Voice
      Description: Configure port voice vlan only.
      Unmatched Commands: Deny
      Add: enable
      Add: configure / permit terminal <cr>
      Add: interface / permit Gi*
      Add: interface / permit Fa*
      Add: switchport / permit voice vlan *
My switch configuration has the following aaa authorization related lines:
     aaa authorization commands 1 default group tacacs+ if-authenticated
     aaa authorization commands 15 default group tacacs+ if-authenticated
When I tested the Shell Set, I noticed that all (config) mode commands were allowed (ie description, hostname). It was only after I added "aaa authorization config-commands" to the switch configuration did my Shell Set began working as I expected it to be.
I went and read up the command reference for "aaa authorization config-commands" in
http://www.cisco.com/en/US/docs/ios/11_3/security/command/reference/sr_auth.html#wp3587.
My comprehension of the command is that by just issuing ' aaa authorization commands 15 ....' this command encompasses the checking of config mode commands and that I did not need to add the stand-alone "aaa authorization config-commands" statement. But clearly, from my testing, I needed the extra statement.
It looks like I resolved my issue and need to add the new statement to all my switches, I'm wondering if someone can help clarify the usage guidelines for me. I'm I one of the few or only one that misinterpreted these "aaa authorization" commands?

Hi Axa,
I have a similar setup and have full Exec Level permissions using only aaa authorization commands level method
The below is taken from cisco.com and explains that you should not require the
aaa authorization config-commands unless you have at some point used the no aaa authorization config-commands command to prevent configuration commands from the Exec User
This in essense is a hidden configured default i.e.you switch on auth for config-commands automatically when you use the aaa authorization commands level method command!
From Cisco.com (I have underlined the key points)
aaa authorization config-commands
To disable AAA configuration command authorization in the EXEC mode, use the no form of the aaa authorization config-commands global configuration command. Use the standard form of this command to reestablish the default created when the aaa authorization commands level method1 command was issued.
aaa authorization config-commands
no aaa authorization config-commands
Syntax Description
This command has no arguments or keywords.
Defaults
After the aaa authorization commands level method has been issued, this command is enabled by default—meaning that all configuration commands in the EXEC mode will be authorized.
Usage Guidelines
If aaa authorization commands level method is enabled, all commands, including configuration commands, are authorized by AAA using the method specified. Because there are configuration commands that are identical to some EXEC-level commands, there can be some confusion in the authorization process. Using no aaa authorization config-commands stops the network access server from attempting configuration command authorization.
After the no form of this command has been entered, AAA authorization of configuration commands is completely disabled. Care should be taken before entering the no form of this command because it potentially reduces the amount of administrative control on configuration commands.
Use the aaa authorization config-commands command if, after using the no form of this command, you need to reestablish the default set by the aaa authorization commands level method command.
Examples
The following example specifies that TACACS+ authorization is run for level 15 commands and that AAA authorization of configuration commands is disabled:
aaa new-model
aaa authorization command 15 tacacs+ none
no aaa authorization config-commands

Aaa authorization config-commands

Hello,
Can anybody explain what is the purpose of this command. I studied the documentation (command reference) but unable to clearly understand the purpose of this command.
Thanks in advance,
Regards,
Mo

This was the best desciption of this command I could find on cisco's site. It sounds to me like if you use the no form of this command you will not be able to use any configuration commands.
Cisco:
Usage Guidelines
If the aaa authorization commands level method command is enabled, all commands, including configuration commands, are authorized by authentication, authorization, and accounting (AAA) using the method specified. Because there are configuration commands that are identical to some EXEC-level commands, there can be some confusion in the authorization process. Using the no aaa authorization config-commands command stops the network access server from attempting configuration command authorization.
After the no form of this command has been entered, AAA authorization of configuration commands is completely disabled. Care should be taken before entering the no form of this command because it potentially reduces the amount of administrative control on configuration commands.
Use the aaa authorization config-commands command if, after using the no form of this command, you need to reestablish the default set by the aaa authorization commands level method command.
Note You will get the same result if you (1) do not configure this command, or (2) configure no aaa authorization config-commands.
The following example specifies that TACACS+ authorization is run for level 15 commands and that AAA authorization of configuration commands is disabled:
aaa new-model
aaa authorization command 15 group tacacs+ none
no aaa authorization config-commands
http://www.cisco.com/en/US/customer/products/sw/iosswrel/ps5187/products_command_reference_chapter09186a008017cf16.html#wp1086510

Aaa authorization interpretation

Hi..
Is this a correct interpretation on aaa authorization?
If I want to authorize certain commands or a certain privilege I use the following example
aaa authorization command 7 group tacacs
no aaa authorization config-commands
if you want to authorize all commands you would use the following:
aaa authorization config-commands

Thanks Tariq, so if i issue the command:
aaa authorization commands 15 group tacacs
no aaa authorization config-commands
What commands are authorized? i'm quite confuse here because when issue the command "configure terminal" i get a "Command Authorization Failed" error will instead i'm in level 15, which is the highest level in which in my own understanding its the administrative level meaning I have a full access and why it's not..
Thanks in advance for all replies...

AAA authorization commands

Hi All
Probably i am going to ask a stupid question but i am really confused regarding the purpose of "aaa authorization commands x default local" command. I understand that if this command is configured, it authorizes each and every command of that level but in my experience, this command is not doing anything. The outcome is same whether it is configured or not.
Following is my aaa part config
username cisco privilege 15 secret cisco
aaa new-model
aaa authentication login default local enable
aaa authorization exec default local if-authenticated
aaa authorization commands 15 default local if-authenticated
Now whether i keep the last command or remove it, username "cisco" is able to use every level 15 command so my question is, why i bother configuring this command?
Would really appreciate your quick reply
Regards

Thanx a lot for your quick response. Really appreciate that.
So does this mean, can i safely assume that if i am using local database then i don't require "aaa authorization command level" command??
that is following should be the config
username cisco privilege 15 secret cisco
aaa new-model
aaa authentication login default local enable
aaa authorization exec default local if-authenticated
privilege exec level 15 show (just an example)
privilege exec level 15 debug
I have tested this and it worked fine without using "aaa authorization command level"
Moreover, regarding the use of AAA server, my eventual plan is to use TACACS+ but before that, i wanted to get a good grip of AAA functionality and therefore started off with local user database.
So u mean to say, if i am using TACACS+ for authentication and authorization purposes and in ACS Server, user "cisco" has been assigned level 15 but with authorization set of "show" and "debug" only then by using "aaa authorization commands level" in a router, i can successfully restrict user "cisco" to "debug" and "show" only? In my point of view, i can achieve this anyway (restricting "cisco" user to only use "show and debug) without using "aaa authorization command level" (like i tested with local database)??
will really appreciate your kind response

AAA Authorization with RADIUS and RSA SecurID Authentication Manager

Hi there.
I am in the process of implementing a new RSA SecurID deployment, and unfortunately the bulk of the IOS devices here do not support native SecurID (SDI) protocol. With the older RSA SecurID deployment version, it supported TACACS running on the system, now in 8.x it does not. Myself, along with RSA Support, are having problems getting TACACS working correctly with the new RSA Deployment, so the idea turned to possibly just using RADIUS
I have setup the RADIUS server-host, and configured the AAA authentication and authorization commands as follows:
#aaa new-model
#radius-server host 1.1.1.1 timeout 10 retransmit 3 key cisco123!
#aaa authentication login default group radius enable
#aaa authorization exec default group radius local
I have also tried
#aaa authorization exec default group radius if-authenticated local
I can successfully authenticate via SSH to User Mode using my SecurID passcode -- however, when I go to enter Priv Exec mode, it wont take the SecurID passcode - I just get an "access denied"
I've ran tcpdump on the RSA Primary Instance, looking for 1645/1646 traffic, and I dont get anything
I've turned on RADIUS debugging on the IOS device, and I dont get anything either
I did see this disclaimer in a Cisco doc: "The RADIUS method does not work on a per-username basis." -- not sure if this is related to my issue?
I'm beginning to wonder if IOS/AAA cant pass authorization-exec process to RSA SecurID

I don't have a solution, but can confirm I have the same problem and am also trying to find a solution.
I see no data sent to the RSA server when using the wireless AP. With other equipment on the same ACS, I do see the attempts going to the RSA server.
The first reply doesn't seem to apply to me, since it's not sending a request from the ACS machine to the RSA machine.

AAA Authorization named authorization list

Ladies and Gents,
Your help will be greatly appreciated – I am currently studying CCNP Switch AAA configuration and I work with a tacacs+ server at work butI having difficulty getting my head around the below
Cisco.com extract below
When you create a named method list, you are defining a particular list of authorization methods for the indicated authorization type.
Once defined, method lists must be applied to specific lines or interfaces before any of the defined methods will be performed. The only exception is the default method list (which is named "default"). If the aaa authorization command for a particular authorization type is issued without a named method list specified, the default method list is automatically applied to all interfaces or lines except those that have a named method list explicitly defined. (A defined method list overrides the default method list.) If no default method list is defined, local authorization takes place by default.
My question is how do you define the Named Method List i.e. the none-default method list?
I don't mean the cisco switch config but how the list is created, is this on the tacacs+ server and the referred to in the CLI?
Any help would be much appreciated as I have read over tons of documents and I can’t see how this is created
Thanks in advance
David

Hi David,
An example of a named AAA list might look something like this:
aaa authorization exec TacExec group AAASrv local
In the example above, I've created a AAA authorization list for controlling shell exec sessions called "TacExec", which will check the remote AAA servers in the group "AAASrv" first; if the device receives no response from the remote servers, it will then atempt to validate the credentials via the local user database. Please remember that a deny response from the AAA server is not the same as no reposonse, the device will only check the local user database if an only if it recieves nothing back from the TACACS query.
Of course, before you create this method list, you need to define the TACACS servers via the "tacacs-server" command, and then add those servers to the group via the "aaa group server" command.
Below is a cut and paste from the AAA section on one of my devices:
aaa new-model
ip tacacs source-interface
tacacs-server host 10.x.x.x key 7
tacacs-server host 10.x.x.y key 7
aaa group server tacacs+ TacSrvGrp
server 10.x.x.x
server 10.x.x.y
aaa authentication login default local
aaa authentication login TacLogin group TacSrvGrp local
aaa authorization console
aaa authorization config-commands
aaa authorization exec default local
aaa authorization exec TacAuth group TacSrvGrp local
aaa authorization commands 0 default local
aaa authorization commands 0 TacCommands0 group TacSrvGrp local
aaa authorization commands 1 default local
aaa authorization commands 1 TacCommands1 group TacSrvGrp local
aaa authorization commands 15 default local
aaa authorization commands 15 TacCommands15 group TacSrvGrp local
aaa accounting exec default start-stop group TacSrvGrp
aaa accounting commands 15 default start-stop group TacSrvGrp
aaa session-id common
Notice that for the various authentication and authorization parameters, there is a named method list as well as a default method list. As per Cisco's documentation, a aaa method list called default (that you explicitly define) will apply to all input methods (con, aux, vty, etc) unless you set a named method list on the particular input line (see below):
line con 0
exec-timeout 5 0
line aux 0
exec-timeout 5 0
line vty 0 4
exec-timeout 15 0
authorization commands 0 TacCommands0
authorization commands 1 TacCommands1
authorization commands 15 TacCommands15
authorization exec TacAuth
login authentication TacLogin
transport input ssh
For the console and aux inputs, I only ever want to use local credentials for AAA purposes (ie: If I have to connect on an out-of-band interface, something is potentially wrong with the network connectivity), however for the VTY lines (SSH sessions in this instance), I always want to use the TACACS servers first, with local user credentials as a fallback mechanism.
One thing you need to be VERY mindful of when configuring your devices for AAA is the order of the commands that are entered. It is a relatively simple matter to lock yourself out from the device management if you don't pay close attention to the specific order that the commands are entered. Typically, I will first do a "show user" just to find out which VTY line that I'm connected on, and when I assign the named AAA method lists to the VTY lines, I normally leave the line that I'm on at the default (local), then I open a second session to the device, authenticate using my TACACS credentials, and complete the config on the remaining VTY line.
Keep in mind that there are some other parameters that you can define at the tacacs-server level (timeout value is a good one to look at) which you can use to enhance the AAA performance somewhat.
Hope this helps!

AAA Authorization Using Local Database

Hi Guys,
I'm planning to use AAA authorization using local database. I have read already about it, I have configured the AAA new-model command and I have setup user's already. But I'm stuck at the part where I will already give certain user access to certain commands using local database. Hope you can help on this.
FYI: I know using ACS/TACACS+/RADIUS is much more easy and powerful but my company will most likely only use local database.

For allowing limited read only access , use this example,
We need these commands on the switch
Switch(config)#do sh run | in priv
username admin privilege 15 password 0 cisco123!
username test privilege 0 password 0 cisco
privilege exec level 0 show ip interface brief
privilege exec level 0 show ip interface
privilege exec level 0 show interface
privilege exec level 0 show switch
No need for user to login to enable mode. All priv 0 commands are now there in the user mode. See below
User Access Verification
Username: test
Password:
Switch>show ?
diagnostic Show command for diagnostic
flash1: display information about flash1: file system
flash: display information about flash: file system
interfaces Interface status and configuration
ip IP information
switch show information about the stack ring
Switch>show switch
Switch/Stack Mac Address : 0015.f9c1.ca80
H/W Current
Switch# Role Mac Address Priority Version State
*1 Master 0015.f9c1.ca80 1 0 Ready
Switch>show run
^
% Invalid input detected at '^' marker.
Switch>show aaa server
^
% Invalid input detected at '^' marker.
Switch>show inter
Switch>show interfaces
Vlan1 is up, line protocol is up
Hardware is EtherSVI, address is 0015.f9c1.cac0 (bia 0015.f9c1.cac0)
Internet address is 192.168.26.3/24
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Switch>
Please check this link,
http://www.cisco.com/en/US/tech/tk59/technologies_tech_note09186a00800949d5.shtml
Regards,
~JG
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Command execution get very slow when AAA Authorization enable on ASR 1006

Without Authorization , I am able work smoothly with just click on ASR ...., But Once I enable Authorization it takes many secs to move to other command exampe ( If i hit config t or int gi1/0/1 , it take time to move to next command level) ...
These Authorization issue I am facing only on ASR and for Other Cisco Switches and Router its working fine wiith just a click.
Did any one face such issue , and how it is fix ...
See the Show version for ASR
Cisco IOS Software, IOS-XE Software (PPC_LINUX_IOSD-ADVIPSERVICESK9-M), Version 15.1(2)S, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 24-Mar-11 23:32 by mcpre
Cisco IOS-XE software, Copyright (c) 2005-2011 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.
ROM: IOS-XE ROMMON
NOITDCRTRCORP01 uptime is 10 weeks, 6 days, 1 hour, 16 minutes
Uptime for this control processor is 10 weeks, 6 days, 1 hour, 19 minutes
System returned to ROM by reload
System restarted at 17:47:32 IST Thu Oct 4 2012
System image file is "bootflash:/asr1000rp1-advipservicesk9.03.03.00.S.151-2.S.bin"
Last reload reason: EHSA standby down
AAA Commands on ASR 1006
aaa new-model
aaa group server tacacs+ tacgroup
server 10.48.128.10
server 10.72.160.10
ip vrf forwarding Mgmt-intf
ip tacacs source-interface GigabitEthernet0
aaa authentication login default group tacgroup local
aaa authentication enable default group tacgroup enable
aaa accounting exec default start-stop group tacgroup
aaa accounting commands 1 default start-stop group tacgroup
aaa accounting commands 15 default start-stop group tacgroup
aaa accounting connection default start-stop group tacgroup
aaa accounting system default start-stop group tacgroup
aaa authorization commands 0 default group tacgroup none
aaa authorization commands 1 default group tacgroup none
aaa authorization commands 15 default group tacgroup none
aaa session-id common
tacacs-server host 10.48.128.10 key 7 13351601181B0B382F04796166
tacacs-server key 7 053B071C325B411B1D25464058

I think your issue maybe related to your tacacs server. If you re-order the two servers (typically a 5 second timer before failover occurs) and see if that improves your performance:
You can try to debug the issue by referring to the command reference guide....i.e. debug tacacs...you can also try to telnet to both ip address to port 49 to see if the connection opens, in order to rule out issues where a firewall or routing to one of the tacacs servers is failing. I also noticed you have the shared secret and tacacs server defined for one of the servers, is the sam present for the other server that is in the server group?
server 10.48.128.10
server 10.72.160.10
to
server 10.72.160.10
server 10.48.128.10
Thanks,
Tarik Admani
*Please rate helpful posts*

Aaa authorization ACA4.1

i configure aaa on my switch and cannog get telnet loggin. in the PAsst Athem ACS Server: Authentication is OK, but FailItem Unknown NAS
Thanks for any Help
-----------------------------------------aaa new-model
aaa authentication login default group radius local
aaa authentication login CONSOLE local
aaa authentication enable default group tacacs+ enable
aaa authentication dot1x default group radius
aaa authorization exec default group tacacs+
aaa authorization exec CON none
aaa authorization network default group radius
aaa accounting exec default start-stop group tacacs+
aaa accounting commands 15 default stop-only group tacacs+
aaa accounting network default start-stop group tacacs+
aaa accounting connection default start-stop group tacacs+
aaa accounting system default start-stop group tacacs+
Switch output:
Username: aessome-d
Password:
% Authorization failed.
Connection closed by foreign host.

You want to use radius or tacacs ? Make sure you have priv 15 configured in acs,
Bring users/groups in at level 15
1. Go to user or group setup in ACS
2. Drop down to "TACACS+ Settings"
3. Place a check in "Shell (Exec)"
4. Place a check in "Privilege level" and enter "15" in the adjacent field
Regards,
~JG
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Aaa authorization console

Hi,
i have the following config :
aaa new-model
aaa authentication login NO_LOGIN none
aaa authentication login ADMINS group radius local
aaa authentication login CONSOLE group radius local
aaa authorization exec NO_AUTHOR none
aaa authorization exec ADMINS group radius local
aaa authorization exec CONSOLE group radius local
enable secret cisco
username cisco privilage 15 secret cisco
line con 0
password 7 05080F1C2243
authorization exec CONSOLE
login authentication CONSOLE
line vty 0 4
password 7 045802150C2E0C
authorization exec ADMINS
logging synchronous
login authentication ADMINS
line vty 5 15
password 7 060506324F41
authorization exec ADMINS
logging synchronous
login authentication ADMINS
When i am tryin gto login to the switch from vty line i come directly to privillage mode, but when loging to console port i come to the exec mode (privilage 1) and i cant go further to the user privillage mode . each time i have to type a password (i type the enable one) and my access is denied.
when issuing the command # aaa authorization console (using telnet from other switch)
the problem is solved.
Can someone please explain why is this happening? i think after logging in with local account (with privillage 15) from console port i should get directly to privilage mode, or am i wrong ?

aaa authorization console is a hidden command. We have to execute this command to enable authorization for console line. If you create a method list "aaa authorization exec CONSOLE group radius local" for console and try to apply it on line console 0, it will throw an error that without "aaa authorization console" all authorization commands for console is useless. You have to first enable authorization for console with the help of aaa authorization console.
command refrence
http://www.cisco.com/en/US/docs/ios/12_2/security/command/reference/srfauth.html#wp1024046
Jatin Katyal
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FWSM - AAA Authorization

How to map this command from IOS to FWSM ?
I want user when login and authenticated, it right way go direct to exec mode. No problem at IOS but , not sure how to configure it on FWSM or PIX Firewall.
aaa authentication enable default enable none
aaa authorization exec default group tacacs+ if-authenticated

The configuration on the FWSM for AAA will be same as would be on a normal PIX. The documents have more details about the same.
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_62/config/mngacl.htm
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_61/cmdqref.htm
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_62/cmdref/ab.htm

AAA authorization and accounting

Hello everyone.
I am given a project to implement AAA on routers and switches in our environment. Can some one please help me out in understanding the difference between,
1) aaa authorization exec and aaa authorization command option.
2) aaa accounting exec and aaa accounting command option.
Many thanks.
Sent from Cisco Technical Support Android App

Hello,
1) aaa authorization exec and aaa authorization command option.
The first one authorizes if the user has the right privilege level to enter to one of the IOS priviliege levels (0,1,15) you can customize this.
The second one authorizes the different commands a user can type and send to the device
2) aaa accounting exec and aaa accounting command option.
The first one again accounts when a users enters a specific user-level (Privileged level 15 or Exec user-level 1)
Second one sends an accounting message per each command send to the box
Check my blog at http:laguiadelnetworking.com for further information.
Cheers,
Julio Carvajal Segura

Aaa authorization with Tacacs+

Hello All,
I am trying to figure out how aaa authorization with tacacs+ works.
I am totally comfortable with aaa authentication..But am not able to understand how it works...How diff priv levels are assigned to diff users?..
I am totally freaked out...

The device side side setup is pretty simple. You just use the aaa authorization command set. A good bit of the setup is on the ACS server end.
Cisco has a pretty thorough configuration example posted here.

AAA Authorization on PIX

I have set up authentication and Authorization on the PIX. Authentication works but Authorization fails. I try to debug but nothing shows up (on PIX or ACS), but it does if I debug Authentication

Make sure you have enable authentication ,
aaa authentication ssh console TACACS LOCAL
aaa authentication telnet console TACACS LOCAL
aaa authentication enable console TACACS LOCAL
aaa authorization command TACACS LOCAL
Incase it does not work pls get aaa config
Regards,
~JG
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Aaa authorization is confusing

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