ASA 5585-X TACACS+/RADIUS Server

All,
Can the ASA 5585-X's act as a AAA TACACS+ and/or RADIUS server for network infrastructure devices?
I've used Cisco Secure ACS for TACACS and RADIUS AAA..
My client has ordered a bunch of them. They don't have an AAA solution and were just told they will need to implement AAA on network infrastructure devices.
Thanks for any information.
Stephanie

Adding to Jan's correct answer.
The current Cisco RADIUS offerings are either the ACS product (RADIUS and TACACS+) or Identity Services Engine (ISE - RADIUS only). Both are offered in both appliance and VM formats.
Beside NPS on Windows server, there are also open source projects of both RADIUS and TACACS servers available.

Similar Messages

Programming tacacs &radius server-keys ?

I'm having an issue programming the tacacs & radius server-keys. I'm not sure if I missed a step or my use of the syntax. I appreciate any help you can provide. It's a first time for me and I'm attempting to duplicate an existing switch which states server-key 7 <removed>.
Thanks
Roy

Roy
I can appreciate that the first time doing this can seem daunting. But it really is not so difficult when you get right down to it.
The first thing to understand is that in the existing config the key has already been encrypted for storage on the switch. So what you see in the running config is crypto text and not really the exact key.
You have two options in how to configure your new switch:
- you could cut and paste the server key from the existing config to the new switch. So you would be inputting the type 7 encrypted key directly to the new switch.
- you could manually configure the key on the new switch. In this case you would configure
server-key <key_value>
where <key_value> is the clear text key to use. If you do this, and assuming that you have configured service password-encryption, then the switch will take the clear text key and will encrypt it for storage on the new switch.
HTH
Rick

Leap, tacacs+/radius fixed ip (pool)

dear,
Is there a way while using leap & mobile ip technology to make it happen when a users becomes associated to an ap (proxy mobile) he always obtains an ip adres from a predefined pool or just one personal ip-adress which we define on our tacacs+/radius server without it having configured statically on the user's computer.
Purpose is for some external consultants browsing around our wireless network, to home them in a segment behind our firewall using mobile ip, but giving the person an ip-adres based on his credentials (tacacs+/radius server) so based on that we can buld a rulebase on our firewall and allow only restricted access to intra or internet. So what we want is actually a user-to-ip mapping without need to configure it on computer or authenticate multiple times. We have something similar with dial-in routers, but I don't find any documentation if we could do something similar with our wireless infrastructure.
Any hints or info would be helpfull.
H.

No, this can't work - you can't use RADIUS to tell an AP which IP address to give to which client, because the AP is not directly involved in assigning layer 3 addresses to clients. It is (basically) only a layer 2 device.

Default Privilege Level for ASA users authenticated by Radius or TACACS when using ASDM

Hello,
I'm trying to figure out what the default privilege level is for users that are authenticated to the ASA via a remote authentication server when using the ASDM.
the command "aaa authentication http console TACACS+ LOCAL" is used in the ASA config.
The remote server is NOT setting any privilege levels for users. There are also no aaa authorization commands present in the config.
So what privilege level do the users receive when they login with the ASDM? I'm being told that the users receive admin access which includes config write, reboot, and debug. But I cannot find any documentation stating hte default level.
Please advise. And providing links to cisco documentation would be great too.
Thanks,
Brendan

Hi Berendan,
Hope the below exerpt from document clarifies your query. also i have provided the link to refer.
About Authorization
Authorization controls access per user after users authenticate. You can configure the security appliance to authorize the following items:
•Management commands
•Network access
•VPN access
Authorization controls the services and commands available to each authenticated user. Were you not to enable authorization, authentication alone would provide the same access to services for all authenticated users.
If you need the control that authorization provides, you can configure a broad authentication rule, and then have a detailed authorization configuration. For example, you authenticate inside users who attempt to access any server on the outside network and then limit the outside servers that a particular user can access using authorization.
The security appliance caches the first 16 authorization requests per user, so if the user accesses the same services during the current authentication session, the security appliance does not resend the request to the authorization server.
http://www.cisco.com/c/en/us/td/docs/security/asa/asa80/asdm60/user/guide/usrguide/aaasetup.html
Regards
Karthik

Integrating AAA Radius-server with Micro-soft IAS for SSH

Hi,
I am configuring aaa-server on ASA-5505(Radius) and i am Using microsoft IAS for authentication for SSH connections on ASA, so during " test aaa-server authentication " i getting this message
ERROR: Authentication Server not responding: AAA decode failure.. server secret mismatch
All users are there on active directory And below are the debug radius and debug aaa authentication.
ASA# test aaa-server authentication SSH-TULIP-ASA host 172.16.1.10 usern$
INFO: Attempting Authentication test to IP address <172.16.1.10> (timeout: 12 seconds)
radius mkreq: 0xd4
alloc_rip 0xd83bb99c
    new request 0xd4 --> 124 (0xd83bb99c)
got user 'praveeny'
got password
add_req 0xd83bb99c session 0xd4 id 124
RADIUS_REQUEST
radius.c: rad_mkpkt
RADIUS packet decode (authentication request)
Raw packet data (length = 66).....
01 7c 00 42 37 a4 0d c2 d3 10 09 0e 2f 3c c5 1a    | .|.B7......./<..
4b 28 41 e6 01 0a 70 72 61 76 65 65 6e 79 02 12    | K(A...praveeny..
a1 8f e1 ae 58 dd c2 52 d6 37 f7 32 13 3a 1c 71    | ....X..R.7.2.:.q
04 06 ac 1e 1e 06 05 06 00 00 00 0e 3d 06 00 00    | ............=...
00 05                                              | ..
Parsed packet data.....
Radius: Code = 1 (0x01)
Radius: Identifier = 124 (0x7C)
Radius: Length = 66 (0x0042)
Radius: Vector: 37A40DC2D310090E2F3CC51A4B2841E6
Radius: Type = 1 (0x01) User-Name
Radius: Length = 10 (0x0A)
Radius: Value (String) =
70 72 61 76 65 65 6e 79                            | praveeny
Radius: Type = 2 (0x02) User-Password
Radius: Length = 18 (0x12)
Radius: Value (String) =
a1 8f ERROR: Authentication Server not responding: AAA decode failure.. server secret mismatch
Tulip-ASA# e1 ae 58 dd c2 52 d6 37 f7 32 13 3a 1c 71    | ....X..R.7.2.:.q
Radius: Type = 4 (0x04) NAS-IP-Address
Radius: Length = 6 (0x06)
Radius: Value (IP Address) = 172.30.30.6 (0xAC1E1E06)
Radius: Type = 5 (0x05) NAS-Port
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0xE
Radius: Type = 61 (0x3D) NAS-Port-Type
Radius: Length = 6 (0x06)
Radius: Value (Hex) = 0x5
send pkt 172.16.1.10/1645
rip 0xd83bb99c state 7 id 124
rad_vrfy() : bad req auth
rad_procpkt: radvrfy fail
RADIUS_DELETE
remove_req 0xd83bb99c session 0xd4 id 124
free_rip 0xd83bb99c
radius: send queue empty
Thanks in advance all comments and suggestion are welcome
Regards,
Praveen

Hi,
RADIUS as a protocol does not support command accounting, ie., logging of commands that a users enters once authenticated to a router/switch. You will need to use TACACS+ for this purpose. The aaa command accounting commands that you used has been removed from IOS since 12.2T. Please take a look at this for details: http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCdp57020.
Thanks,
Wen

Can't authenticate Mac VPN client from RADIUS server

Hello,
I'm a real noob here so please bear with me.
I have been able to configure my PIX 515E to allow VPN connections onto my network, but what I need to do is set up some sort of user authentication to control access at a user level. From what I've read here and in the Configuration Guide I should be able to do this authentication with a RADIUS server. I'm running a Corriente Networks Elektron Security server which has RADIUS server capabilities. It is running on my (inside) interface at IP 192.168.10.26.
I thought that I had everything configured properly but it never seems to authenticate. I connect, the XAUTH window pops up, I add my username and password as it's configured on my RADIUS server, but when I click OK it just cycles the progress bar at the bottom and eventually times out. The client log doesn't show me anything and the log on the RADIUS server shows me nothing. Any ideas? this seems like it should be simple because I can connect until I attempt to authenticate to the RADIUS server.
TIA for any direction you can provide me.
Christine

If it helps, here is my config with a some of the non-related bits deleted:
interface ethernet0 auto
interface ethernet1 auto
interface ethernet2 auto
nameif ethernet0 outside security0
nameif ethernet1 inside security100
nameif ethernet2 DMZ security50
enable password ********* encrypted
passwd ******* encrypted
hostname pixfirewall
domain-name acme.com
fixup protocol dns maximum-length 512
fixup protocol ftp 21
fixup protocol http 80
fixup protocol http 82
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol sip 5060
fixup protocol sip udp 5060
fixup protocol skinny 2000
fixup protocol smtp 25
access-list inside_outbound_nat0_acl permit ip any 192.168.10.0 255.255.255.0
access-list inside_outbound_nat0_acl permit ip host 192.168.10.26 192.168.10.192 255.255.255.224
access-list inside_outbound_nat0_acl permit ip host 192.168.10.69 192.168.10.192 255.255.255.224
access-list outside_cryptomap_dyn_20 permit ip any 192.168.10.0 255.255.255.0
access-list outside_cryptomap_dyn_40 permit ip any 192.168.10.192 255.255.255.224
mtu outside 1500
mtu inside 1500
mtu DMZ 1500
ip address outside 207.XXX.XXX.130 255.255.255.0
ip address inside 192.168.10.1 255.255.255.0
ip address DMZ 192.168.100.1 255.255.255.0
multicast interface inside
ip audit info action alarm
ip audit attack action alarm
ip local pool CBI_VPN_Pool 192.168.10.201-192.168.10.220
pdm location 192.168.10.50 255.255.255.255 inside
pdm group CBI_Servers inside
pdm logging warnings 100
pdm history enable
arp timeout 14400
global (outside) 200 interface
global (DMZ) 200 interface
nat (inside) 0 access-list inside_outbound_nat0_acl
nat (inside) 200 192.168.10.0 255.255.255.0 0 0
static (inside,outside) 207.XXX.XXX.150 192.168.10.27 netmask 255.255.255.255 0 0
static (inside,outside) 207.XXX.XXX.132 192.168.10.26 dns netmask 255.255.255.255 0 0
access-group 100 in interface outside
route outside 0.0.0.0 0.0.0.0 207.XXX.XXX.129 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h225 1:00:00
timeout h323 0:05:00 mgcp 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server radius-authport 1812
aaa-server radius-acctport 1812
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server RADIUS (inside) host 192.168.10.26 ************* timeout 10
aaa-server LOCAL protocol local
http server enable
http 192.168.10.3 255.255.255.255 inside
no floodguard enable
sysopt connection permit-ipsec
crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac
crypto dynamic-map outside_dyn_map 20 match address outside_cryptomap_dyn_20
crypto dynamic-map outside_dyn_map 20 set transform-set ESP-DES-MD5
crypto dynamic-map outside_dyn_map 40 match address outside_cryptomap_dyn_40
crypto dynamic-map outside_dyn_map 40 set transform-set ESP-DES-MD5
crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map
crypto map outside_map client authentication RADIUS
crypto map outside_map interface outside
crypto map inside_map interface inside
isakmp enable outside
isakmp nat-traversal 3600
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup Test_VPN address-pool CBI_VPN_Pool
vpngroup Test_VPN dns-server 142.77.2.101 142.77.2.36
vpngroup Test_VPN default-domain acme.com
vpngroup Test_VPN idle-time 1800
vpngroup Test_VPN authentication-server RADIUS
vpngroup Test_VPN user-authentication
vpngroup Test_VPN user-idle-timeout 1200
vpngroup Test_VPN password ********
ssh timeout 5
console timeout 0
dhcpd address 192.168.10.100-192.168.10.254 inside
dhcpd dns 142.77.2.101 142.77.2.36
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
dhcpd enable inside

Radius server issue

Hello all,
I have configured a radius server on my sbs2008 server. I am able to test it from the ASA successfully, however when I try to login with the Anyconnect client I get a login failed. When I check the logs I see that the VPN is trying to authenitcate against the Local database and not my RADIUS server evern though I have authentication-server-group set. I have also restarted the asa thinking that was the issue.
Here is my config:
webvpn
port 444
enable outside
svc image disk0:/anyconnect-win-3.1.03103-k9.pkg 1
svc enable
group-policy DfltGrpPolicy attributes
vpn-tunnel-protocol IPSec l2tp-ipsec
group-policy OAC internal
group-policy OAC attributes
wins-server value 192.168.2.2
dns-server value 192.168.2.2
vpn-tunnel-protocol svc webvpn
group-lock value OAC
split-tunnel-policy tunnelspecified
split-tunnel-network-list value OAC
default-domain value OAC.LOCAL
tunnel-group OAC type remote-access
tunnel-group OAC general-attributes
address-pool vpnpool
authentication-server-group OAC
default-group-policy OAC
Thank you for any help,
Leon

Leon,
Looks like your connection is falling on DefaultWebvpn tunnel group. You need to define group list so as to choose
OAC as tunnel group for connection. Here is what needs to be configured:
webvpn
tunnel-group-list enable
tunnel-group OAC webvpn-attributes
group-alias OAC enable
Users will connect to correct OAC tunnel group to get authentocated from radius server.
Regards,
Varinder
P.S. Please mark this post as 'Answered' if you find the above information helpful so that it brings goodness to other community users

VPN Tunnel w/ 802.1X port authentication against remote RADIUS server

I have a Cisco 892 setup as a VPN client connecting to an ASA 5515-X. The tunnel works fine and comes up if theirs correct traffic. I have two RADIUS servers I want to use certificate based authentication to, that are located behind the ASA 5515-X.
If I connect a computer that has the correct certificates to ports FA0 through 3, authentication won't work. I'll see the following. This happens even if the VPN tunnel is established already by doing something such as connecting a VOIP phone. No entrys are located in the RADIUS logs, and I also cannot ping the RADIUS servers from VLAN10.
*Jan 30 19:46:01.435: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.1.100:1812,1813 is not responding.
*Jan 30 19:46:01.435: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.1.100:1812,1813 is being marked alive.
*Jan 30 19:46:21.659: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.26.10:1812,1813 is not responding.
*Jan 30 19:46:21.659: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.26.10:1812,1813 is being marked alive.
If I connect a second PC to an interface with 802.1X disabled, such as FA6, the VPN tunnel will establish itself correctly. In this situation, I can ping the RADIUS servers from VLAN10. If I go ahead and connect another PC with correct certificates to a port with 802.1X enabled such as port FA0 through 3, then 802.1X will suceed.
Current configuration : 6199 bytes
! Last configuration change at 15:40:11 EST Mon Feb 3 2014 by
version 15.2
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname router1
boot-start-marker
boot-end-marker
aaa new-model
aaa local authentication default authorization default
aaa authentication login default local
aaa authentication dot1x default group radius
aaa authorization network default group radius
aaa session-id common
clock timezone EST -5 0
clock summer-time EDT recurring
ip cef
ip dhcp pool pool
import all
network 192.168.28.0 255.255.255.248
bootfile PXEboot.com
default-router 192.168.28.1
dns-server 192.168.26.10 192.168.1.100 8.8.8.8 4.2.2.2
domain-name domain.local
option 66 ip 192.168.23.10
option 67 ascii PXEboot.com
option 150 ip 192.168.23.10
lease 0 2
ip dhcp pool phonepool
network 192.168.28.128 255.255.255.248
default-router 192.168.28.129
dns-server 192.168.26.10 192.168.1.100
option 150 ip 192.168.1.132
domain-name domain.local
lease 0 2
ip dhcp pool guestpool
network 10.254.0.0 255.255.255.0
dns-server 8.8.8.8 4.2.2.2
domain-name local
default-router 10.254.0.1
lease 0 2
no ip domain lookup
ip domain name remote.domain.local
no ipv6 cef
multilink bundle-name authenticated
license udi pid CISCO892-K9
dot1x system-auth-control
username somebody privilege 15 password 0 password
redundancy
crypto isakmp policy 1
encr aes 256
authentication pre-share
group 5
crypto isakmp key secretpassword address 123.123.123.123
crypto ipsec transform-set pix-set esp-aes 256 esp-sha-hmac
mode tunnel
crypto map pix 10 ipsec-isakmp
set peer 123.123.123.123
set transform-set pix-set
match address 110
interface BRI0
no ip address
encapsulation hdlc
shutdown
isdn termination multidrop
interface FastEthernet0
switchport access vlan 10
switchport voice vlan 11
no ip address
authentication port-control auto
dot1x pae authenticator
spanning-tree portfast
interface FastEthernet1
switchport access vlan 10
switchport voice vlan 11
no ip address
authentication port-control auto
dot1x pae authenticator
spanning-tree portfast
interface FastEthernet2
switchport access vlan 10
switchport voice vlan 11
no ip address
authentication port-control auto
dot1x pae authenticator
spanning-tree portfast
interface FastEthernet3
switchport access vlan 10
switchport voice vlan 11
no ip address
authentication port-control auto
dot1x pae authenticator
spanning-tree portfast
interface FastEthernet4
switchport access vlan 10
switchport voice vlan 11
no ip address
spanning-tree portfast
interface FastEthernet5
switchport access vlan 12
switchport voice vlan 11
no ip address
spanning-tree portfast
interface FastEthernet6
switchport access vlan 10
switchport voice vlan 11
no ip address
spanning-tree portfast
interface FastEthernet7
switchport access vlan 10
switchport voice vlan 11
no ip address
authentication port-control auto
dot1x pae authenticator
spanning-tree portfast
interface FastEthernet8
no ip address
shutdown
duplex auto
speed auto
interface GigabitEthernet0
ip address dhcp
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
crypto map pix
interface Vlan1
no ip address
interface Vlan10
ip address 192.168.28.1 255.255.255.248
ip nat inside
ip virtual-reassembly in
interface Vlan11
ip address 192.168.28.129 255.255.255.248
interface Vlan12
ip address 10.254.0.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
ip forward-protocol nd
ip http server
ip http authentication local
ip http secure-server
ip nat inside source list 101 interface GigabitEthernet0 overload
ip route 0.0.0.0 0.0.0.0 dhcp
ip radius source-interface Vlan10
ip sla auto discovery
access-list 101 deny ip 192.168.28.0 0.0.0.255 192.168.0.0 0.0.255.255
access-list 101 permit ip 192.168.28.0 0.0.0.255 any
access-list 101 permit ip 10.254.0.0 0.0.0.255 any
access-list 110 permit ip 192.168.28.0 0.0.0.255 192.168.0.0 0.0.255.255
access-list 110 permit ip 192.168.29.0 0.0.0.255 192.168.0.0 0.0.255.255
radius-server host 192.168.1.100 auth-port 1812 acct-port 1813 key secretkey
radius-server host 192.168.26.10 auth-port 1812 acct-port 1813 key secretkey
control-plane
mgcp profile default
line con 0
line aux 0
line vty 0 4
transport input all
ntp source FastEthernet0
ntp server 192.168.26.10
ntp server 192.168.1.100
end

I have 802.1X certificate authentication enabled on the computers. As described in my post above, authentication will work if theirs another device on the same VLAN that is connected to a port that bypasses authentication. It seems like I have a chicken and egg scenario, a device needs to be sucessfully connected to VLAN10 before the router will use it's VLAN10 interface to communicate with my remote RADIUS server.

Radius server for 802.1x port authentication

Does anybody know if CiscoSecure for Unix version 2.3.6.2 can be used as a Radius server for 802.1x port authentication? I know the Windows version will do this and can be configured to assign a user to a specific VLAN, but can the UNIX software do the same?
Thanks

Check connectivity between the PIX and the server.
If the server is outside the PIX, verify that it is specified in the (if_name) parameter of the aaa-server command. In the example below, the (if_name) parameter represents outside.
aaa-server group_tag (if_name) host server_ip key timeout 5
If you are using TACACS+, verify that the PIX and server are communicating on the same port (Transmission Control Protocol (TCP)/49).
If you are using RADIUS, verify that the PIX and server are communicating on User Datagram Protocol (UDP) port 1645. Or, if the RADIUS server is using port 1812, verify that the PIX is using software version 6.0 or later, and then issue the aaa-server radius-authport 1812 command to specify port 1812.
Ensure that the secret key is correct.
Check the server logs for failed attempts. All servers have some kind of logging function.

WPA2-Enterprise + EAP (PEAP) and 802.1x to authenticate to RADIUS server NPS

I need to connect my iPhone and my iPad to the corporate wireless network using WPA2-Enterprise and 802.1x to authenticate against a RADIUS server with my corporate user. What is the procedure to configure the clients? Certificates is not necessary on the client. Radius server is a NPS of Microsoft and the WLC is a 5508 of Cisco.
thanks !!!

WPA and WPA2 are all actually interim protocols that are used until the standardization of IEEE 802.11i standard. Wi-fi appliance decided that ratification and standardization of 802.11i standards will take more time. So, they came up with WPA.
Now, WPA2 is advanced version of WPA. WPA2 uses AES as encryption algorithm. Whereas, WPA use TKIP as encryption mode which in turn uses RC4 encryption algorithm.
WPA and WPA2 are actually are of 2 types respectively.
WPA/WPA2-PSK - This is mainly for small offices. This uses Pre-Shared Key for authentication.
WPA/WPA2 -Enterprise - This uses a RADIUS Server for authentication. This is an extension to 802.1x authentication. But this uses stronger encryption scheme(WPA uses RC4 and WPA2 uses AES).
Any authentication mechanism that involves a separation authentication server for authentication like ACS server is called 802.1x authentication.
EAP stands for Extensible Authentication Protocol. It refers to the type or method of 802.1x Authentication by the RADIUS/Tacacs server. A RADIUS server can authenticate a wireless client with various EAP methods.
LEAP is one type of EAP. It uses username and password for authenticating wireless clients. LEAP is cisco proprietory.
There are also EAP types which uses other user credentials like Certificates, SIM etc for authentcation.
The following document might clarify your doubts.
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_q_and_a_item09186a00805e8297.shtml

New command for radius-server source-ports

I am trying to find the new command fro radius-server source-ports 1645-1646 since it appears to be depricated. We use tacacs so we do not have the radius server specified but we do need to put in the ports. Can someone please tell me the new command for radius-server source-ports?
Thanks

Both of the links that Peter posted are interesting and helpful. I would like to take a slightly different approach in answering your question.
In every version of IOS there are certain commands that get inserted into running-config when a particular feature is activated. It looks like in your version the radius-server source-ports is one of those commands. I do not think it is anything that you should be concerned about.
And I do not believe that having the radius-server source-ports command would prevent TACACS from working. I believe that there is likely to be some fault in your configuration. If you would post the aaa parts of the config then maybe we could see what the problem is.
In my experience configuring aaa some of the common problems include not correctly identifying the TACACS server, not having exactly the same key configured on the Cisco device and the TACACS server, not having connectivity to the TACACS server (can the Cisco device ping the server, and can the server ping the device), or errors in the authentication or authorization prameters specified.
Post some information and we will see what we can do.
HTH
Rick

RADIUS Server High Availability?

Hi,
I have two RADIUS servers in my network (one to be the failover serv) and one of them has been having problems, the server is not getting down but the radius service is getting crashed. Don't know why the failover server doesn't respond the authentication for the users if the books said that this is something automatic.
Is there one command to allow the switch to recognize if the service is down in one of the radius servers and automatically use the other one to authenticate the users?.
tks

Hi,
In switches you need to configure two radius server with secret key along with,so as per the sequence in the IOS the request will directed to radius servers.
Below will the command to configure tacas/radius server in switches
tacacs-server host 10.1.x.x
tacacs-server host 10.2.x.x
Hope that help out your query !!
Regards
Ganesh.H

1602i standalone AP cannot ping RADIUS server

I have a new 1602i standalone AP trying to use RADIUS authentication. For some reason the 1602 cannot ping the RADIUS server, but will get a response from other devices. Both are on the same subnet, the new one at .213 and the RADIUS at .209.
AP6#ping xxx.xx.120.209
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to xxx.xx..120.209, timeout is 2 seconds:
Success rate is 0 percent (0/5)
AP6#ping xxx.xx.120.217
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to xxx.xx..120.217, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/3/4 ms
The RADUIS server is able to ping the new AP successfully.
AP1#ping xxx.xx.120.213
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to xxx.xx.120.213, timeout is 2 seconds:
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms
Any thoughts to why that AP is unable to ping that one particular client? Other APs are successfully contacting it for RADIUS authentication.

version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname AP6
logging rate-limit console 9
enable secret 5 xxxxxxxxxxxx
aaa new-model
aaa group server radius rad_eap
server xxx.xx.120.209 auth-port 1812 acct-port 1813
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
clock timezone -0500 -5 0
clock summer-time -0400 recurring
no ip routing
no ip cef
dot11 syslog
dot11 ssid xxx.xx
   authentication open eap eap_methods
   authentication network-eap eap_methods
   authentication key-management wpa
crypto pki token default removal timeout 0
username Cisco privilege 15 password 7 xxxxx
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption mode ciphers tkip
ssid MANH
antenna gain 0
stbc
beamform ofdm
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio1
no ip address
no ip route-cache
shutdown
antenna gain 0
dfs band 3 block
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
interface BVI1
ip address dhcp client-id GigabitEthernet0
no ip route-cache
ip forward-protocol nd
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip radius source-interface BVI1
snmp-server view dot11view ieee802dot11 included
snmp-server community RW
snmp-server chassis-id AP6
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps entity
snmp-server enable traps disassociate
snmp-server enable traps deauthenticate
snmp-server enable traps authenticate-fail
snmp-server enable traps dot11-qos
snmp-server enable traps switch-over
snmp-server enable traps rogue-ap
snmp-server enable traps wlan-wep
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps syslog
snmp-server enable traps cpu threshold
snmp-server enable traps aaa_server
snmp-server host .0.39 public
radius-server local
user user1 nthash 7
radius-server attribute 32 include-in-access-req format %h
radius-server host xxx.xx.120.209 auth-port 1812 acct-port 1813 key 7
radius-server vsa send accounting
bridge 1 route ip
line con 0
line vty 0 4
transport input all
sntp server xxx.xx.0.11
sntp broadcast client
end

WIndows Radius Server

Hi,
We are using windows 2000 IAS server radius server.
We have Catalyst 4500 in our network.
Requirement is to enable command level accounting using windows radius server (IAS).
Pls suggest with sample config.
Regards

Hi,
I believe command level accounting is supported in tacacs only however i am not sure about IAS server. you can check on this webpage
Happy New Year To ALL

Changing RADIUS Server

We have an AS5300 and a Radius server. We are changing the Radius server. Besides changing the IP address of the Radius server on the AS5300, is there anything else that we need to do? Thanks.

I dont think so, just specify the new IP and you are good to go.
check the following example:
aaa authentication login default group radius local
aaa authorization exec default group radius local
aaa authorization command 2 default group tacacs+ if-authenticated
radius-server host 172.16.71.146 auth-port 1645 acct-port 1646
radius-server attribute 44 include-in-access-req
radius-server attribute 8 include-in-access-req
So, unless you are changing port or other parameters, changing the IP will do the job.
HTH,
please rate all posts.
Vlad

ASA 5585-X TACACS+/RADIUS Server

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