Este documento describe una configuración de muestra de un punto de acceso basado en programas del ® del Cisco IOS para la autenticación del Protocolo de Autenticación Extensible (EAP) de los usuarios de red inalámbrica contra una base de datos alcanzada por un servidor de RADIUS.
El AP puentea los paquetes inalámbricos del cliente en los paquetes atados con alambre destinados al servidor de la autenticación y vice versa. Porque el AP juega esto rol pasivo en EAP, esta configuración se utiliza con virtualmente todos los métodos EAP. Estos métodos incluyen, pero no se limitan a, EAP ligero (SALTO), EAP protegido (PEAP) - versión 2 del protocolo microsoft challenge handshake authentication (MSCHAP), la placa Token PEAP-genérica (GTC), autenticación adaptable de EAP vía el Tunelización seguro (RÁPIDO), Seguridad de la capa del EAP-transporte (TLS), y TLS EAP-hecho un túnel (TTL). Usted debe configurar apropiadamente el servidor de la autenticación para cada uno de estos métodos EAP.
Este documento describe cómo configurar el AP y al servidor de RADIUS, que es Cisco Secure Access Control Server (ACS) 5.3 en esta configuración de muestra.
Cisco recomienda que tenga conocimiento sobre estos temas:
La información que contiene este documento se basa en las siguientes versiones de software y hardware.
Este ejemplo de la configuración asume que hay solamente un VLA N en la red.
La información que contiene este documento se creó a partir de los dispositivos en un ambiente de laboratorio específico. Todos los dispositivos que se utilizan en este documento se pusieron en funcionamiento con una configuración verificada (predeterminada). Si la red está funcionando, asegúrese de haber comprendido el impacto que puede tener cualquier comando.
Este documento utiliza esta configuración para el GUI y el CLI:
Este procedimiento describe cómo definir el servidor de la autenticación y establecer una relación con él.
Si usted envía a los usuarios a un servidor de RADIUS externo, el AP necesita ser un cliente del Authentication, Authorization, and Accounting (AAA) para este servidor de RADIUS externo. Este procedimiento describe cómo configurar el ACS.
Este procedimiento describe cómo configurar el Service Set Identifier (SSID) en el AP.
Ésta es la misma configuración hecha dentro del CLI:
show run
Building configuration...
Current configuration : 2511 bytes
!
! Last configuration change at 01:17:48 UTC Mon Mar 1 1993
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ap
!
!
logging rate-limit console 9
enable secret 5 $1$1u04$jr7DG0DC5KZ6bVaSYUhck0
!
aaa new-model
!
!
aaa group server radius rad_eap
server 10.106.55.91
!
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
ip cef
!
ip dhcp pool test
!
!
!
dot11 syslog
!
dot11 ssid radius
authentication open eap eap_methods
authentication network-eap eap_methods
authentication key-management wpa version 2
guest-mode
!
!
crypto pki token default removal timeout 0
!
!
username Cisco password 7 0802455D0A16
!
!
bridge irb
!
!
!
interface Dot11Radio0
no ip address
!
encryption mode ciphers aes-ccm
!
ssid radius
!
antenna gain 0
stbc
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
!
encryption mode ciphers aes-ccm
!
ssid radius
!
antenna gain 0
dfs band 3 block
stbc
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
duplex auto
speed auto
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
!
interface BVI1
ip address 10.105.136.11 255.255.255.128
!
ip default-gateway 10.105.136.1
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 route 0.0.0.0 0.0.0.0 10.105.136.1
ip radius source-interface BVI1
!
radius-server attribute 32 include-in-access-req format %h
radius-server host 10.106.55.91 key 7 00271A1507545A545C606C
radius-server vsa send accounting
!
bridge 1 route ip
!
!
!
line con 0
line vty 0 4
transport input all
!
end
Use esta sección para confirmar que su configuración funciona correctamente.
Conecte al cliente; después de la autenticación satisfactoria, éste es el resumen de la configuración que aparece en el GUI AP:
En el CLI, ingrese el comando show dot11 associations para confirmar la configuración:
ap#show dot11 associations
802.11 Client Stations on Dot11Radio0:
SSID [radius] :
MAC Address IP address Device Name Parent State
f8db.7f75.7804 10.105.136.116 unknown - self EAP-Assoc
Usted puede también ingresar el comando show radius server-group all para visualizar una lista de todos los grupos de servidores configurados del RADIO en el AP.
Este procedimiento describe cómo resolver problemas su configuración.
Invalid message authenticator in EAP request
radius-server host x.x.x.x auth-port x acct-port x key <shared_secret>
Utilice estos comandos debug para investigar y visualizar las negociaciones entre los dispositivos:
Este comando visualiza las divisiones importantes (o los estados) de la negociación entre el cliente y el servidor de la autenticación. Éste es un ejemplo de la salida de una autenticación satisfactoria:
ap#debug dot11 aaa authenticator state-machine
state machine debugging is on
ap#
*Mar 1 01:38:34.919: dot11_auth_dot1x_send_id_req_to_client: Sending identity
request to f8db.7f75.7804
*Mar 1 01:38:34.919: dot11_auth_dot1x_send_id_req_to_client: Client
f8db.7f75.7804 timer started for 30 seconds
*Mar 1 01:38:35.431: dot11_auth_dot1x_run_rfsm: Executing Action(CLIENT_WAIT,
CLIENT_REPLY) for f8db.7f75.7804
*Mar 1 01:38:35.431: dot11_auth_dot1x_send_response_to_server: Sending client
f8db.7f75.7804 data to server
*Mar 1 01:38:35.431: dot11_auth_dot1x_send_response_to_server: Started timer
server_timeout 60 seconds
*Mar 1 01:38:35.435: dot11_auth_dot1x_run_rfsm: Executing Action(SERVER_WAIT,
SERVER_REPLY) for f8db.7f75.7804
*Mar 1 01:38:35.435: dot11_auth_dot1x_send_response_to_client: Forwarding server
message to client f8db.7f75.7804
*Mar 1 01:38:35.435: dot11_auth_dot1x_send_response_to_client: Started timer
client_timeout 30 seconds
*Mar 1 01:38:35.443: dot11_auth_dot1x_run_rfsm: Executing Action(CLIENT_WAIT,
CLIENT_REPLY) for f8db.7f75.7804
*Mar 1 01:38:35.443: dot11_auth_dot1x_send_response_to_server: Sending client
f8db.7f75.7804 data to server
*Mar 1 01:38:35.443: dot11_auth_dot1x_send_response_to_server: Started timer
server_timeout 60 seconds
*Mar 1 01:38:35.447: dot11_auth_dot1x_run_rfsm: Executing Action(SERVER_WAIT,
SERVER_REPLY) for f8db.7f75.7804
*Mar 1 01:38:35.447: dot11_auth_dot1x_send_response_to_client: Forwarding server
message to client f8db.7f75.7804
*Mar 1 01:38:35.447: dot11_auth_dot1x_send_response_to_client: Started timer
client_timeout 30 seconds
-------------------Lines Omitted for simplicity-------------------
*Mar 1 01:38:36.663: dot11_auth_dot1x_run_rfsm: Executing Action(SERVER_WAIT,
SERVER_REPLY) for f8db.7f75.7804
*Mar 1 01:38:36.663: dot11_auth_dot1x_send_response_to_client: Forwarding server
message to client f8db.7f75.7804
*Mar 1 01:38:36.663: dot11_auth_dot1x_send_response_to_client: Started timer
client_timeout 30 seconds
*Mar 1 01:38:36.667: dot11_auth_dot1x_run_rfsm: Executing Action(CLIENT_WAIT,
CLIENT_REPLY) for f8db.7f75.7804
*Mar 1 01:38:36.667: dot11_auth_dot1x_send_response_to_server: Sending client
f8db.7f75.7804 data to server
*Mar 1 01:38:36.667: dot11_auth_dot1x_send_response_to_server: Started timer
server_timeout 60 seconds
*Mar 1 01:38:36.671: dot11_auth_dot1x_run_rfsm: Executing Action(SERVER_WAIT,
SERVER_PASS) for f8db.7f75.7804
*Mar 1 01:38:36.671: dot11_auth_dot1x_send_response_to_client: Forwarding server
message to client f8db.7f75.7804
*Mar 1 01:38:36.671: dot11_auth_dot1x_send_response_to_client: Started timer
client_timeout 30 seconds
*Mar 1 01:38:36.719: %DOT11-6-ASSOC: Interface Dot11Radio0, Station
f8db.7f75.7804 Associated KEY_MGMT[WPAv2]
Este comando visualiza las negociaciones RADIUS entre el servidor y el cliente, que son puenteadas por el AP. Éste es un ejemplo de la salida de una autenticación satisfactoria:
ap#debug radius authentication
*Mar 1 01:50:50.635: RADIUS/ENCODE(000001F6):Orig. component type = DOT11
*Mar 1 01:50:50.635: RADIUS: AAA Unsupported Attr: ssid [347] 6
*Mar 1 01:50:50.635: RADIUS: 72 61 64 69 [ radi]
*Mar 1 01:50:50.635: RADIUS: AAA Unsupported Attr: service-type [345] 4 1
*Mar 1 01:50:50.635: RADIUS: AAA Unsupported Attr: interface [222] 3
*Mar 1 01:50:50.635: RADIUS: 32 [ 2]
*Mar 1 01:50:50.635: RADIUS(000001F6): Config NAS IP: 10.105.136.11
*Mar 1 01:50:50.635: RADIUS(000001F6): Config NAS IPv6:
*Mar 1 01:50:50.635: RADIUS/ENCODE(000001F6): acct_session_id: 491
*Mar 1 01:50:50.635: RADIUS(000001F6): Config NAS IP: 10.105.136.11
*Mar 1 01:50:50.635: RADIUS(000001F6): sending
*Mar 1 01:50:50.635: RADIUS(000001F6): Send Access-Request to 10.106.55.91:1645
id 1645/73, len 140
*Mar 1 01:50:50.635: RADIUS: authenticator 0F 74 18 0E F3 08 ED 51 -
8B EA F7 31 AC C9 CA 6B
*Mar 1 01:50:50.635: RADIUS: User-Name [1] 8 "radius"
*Mar 1 01:50:50.635: RADIUS: Framed-MTU [12] 6 1400
*Mar 1 01:50:50.635: RADIUS: Called-Station-Id [30] 26 "1C-E6-C7-E1-D8-90:
radius"
*Mar 1 01:50:50.635: RADIUS: Calling-Station-Id [31] 16 "f8db.7f75.7804"
*Mar 1 01:50:50.635: RADIUS: Service-Type [6] 6 Login [1]
*Mar 1 01:50:50.635: RADIUS: Message-Authenticato[80] 18
*Mar 1 01:50:50.635: RADIUS: E3 E1 50 F8 2B 22 26 84 C1 F1 76 28 79 70 5F 78
[ P+"&v(yp_x]
*Mar 1 01:50:50.635: RADIUS: EAP-Message [79] 13
*Mar 1 01:50:50.635: RADIUS: 02 01 00 0B 01 72 61 64 69 75 73
[ radius]
*Mar 1 01:50:50.635: RADIUS: NAS-Port-Type [61] 6 802.11 wireless
[19]
*Mar 1 01:50:50.635: RADIUS: NAS-Port [5] 6 282
*Mar 1 01:50:50.635: RADIUS: NAS-Port-Id [87] 5 "282"
*Mar 1 01:50:50.635: RADIUS: NAS-IP-Address [4] 6 10.105.136.11
*Mar 1 01:50:50.635: RADIUS: Nas-Identifier [32] 4 "ap"
*Mar 1 01:50:50.635: RADIUS(000001F6): Sending a IPv4 Radius Packet
*Mar 1 01:50:50.635: RADIUS(000001F6): Started 5 sec timeout
*Mar 1 01:50:50.639: RADIUS: Received from id 1645/73 10.106.55.91:1645, Access
-Challenge, len 94
*Mar 1 01:50:50.639: RADIUS: authenticator 5E A4 A7 B9 01 CC F4 20 -
2E D0 2A 1A A4 58 05 9E
*Mar 1 01:50:50.639: RADIUS: State [24] 32
*Mar 1 01:50:50.639: RADIUS: 32 37 53 65 73 73 69 6F 6E 49 44 3D 61 63 73 35
[27SessionID=acs5]
*Mar 1 01:50:50.639: RADIUS: 31 2F 31 36 35 34 38 39 35 31 31 2F 39 3B [ 1
/165489511/9;]
*Mar 1 01:50:50.639: RADIUS: EAP-Message [79] 24
*Mar 1 01:50:50.639: RADIUS: 01 DC 00 16 11 01 00 08 00 CB 2A 0A 74 B3 77 AF
72 61 64 69 75 73 [ *twradius]
*Mar 1 01:50:50.639: RADIUS: Message-Authenticato[80] 18
*Mar 1 01:50:50.643: RADIUS: CC 44 D5 FE FC 86 BC 2D B0 89 61 69 4F 34 D1 FF
[ D-aiO4]
*Mar 1 01:50:50.643: RADIUS(000001F6): Received from id 1645/73
*Mar 1 01:50:50.643: RADIUS/DECODE: EAP-Message fragments, 22, total 22 bytes
*Mar 1 01:50:50.647: RADIUS/ENCODE(000001F6):Orig. component type = DOT11
*Mar 1 01:50:50.647: RADIUS: AAA Unsupported Attr: ssid [347] 6
*Mar 1 01:50:50.647: RADIUS: 72 61 64 69 [ radi]
*Mar 1 01:50:50.647: RADIUS: AAA Unsupported Attr: service-type [345] 4
1
*Mar 1 01:50:50.647: RADIUS: AAA Unsupported Attr: interface [222] 3
*Mar 1 01:50:50.647: RADIUS: 32 [ 2]
*Mar 1 01:50:50.647: RADIUS(000001F6): Config NAS IP: 10.105.136.11
*Mar 1 01:50:50.647: RADIUS(000001F6): Config NAS IPv6:
*Mar 1 01:50:50.647: RADIUS/ENCODE(000001F6): acct_session_id: 491
*Mar 1 01:50:50.647: RADIUS(000001F6): Config NAS IP: 10.105.136.11
*Mar 1 01:50:50.647: RADIUS(000001F6): sending
*Mar 1 01:50:50.647: RADIUS(000001F6): Send Access-Request to 10.106.55.91:1645
id 1645/74, len 167
*Mar 1 01:50:50.647: RADIUS: authenticator C6 54 54 B8 58 7E ED 60 - F8 E0 2E
05 B0 87 3B 76
*Mar 1 01:50:50.647: RADIUS: User-Name [1] 8 "radius"
*Mar 1 01:50:50.647: RADIUS: Framed-MTU [12] 6 1400
*Mar 1 01:50:50.647: RADIUS: Called-Station-Id [30] 26 "1C-E6-C7-E1-D8-90:
radius"
*Mar 1 01:50:50.647: RADIUS: Calling-Station-Id [31] 16 "f8db.7f75.7804"
*Mar 1 01:50:50.647: RADIUS: Service-Type [6] 6 Login
[1]
*Mar 1 01:50:50.647: RADIUS: Message-Authenticato[80] 18
*Mar 1 01:50:50.647: RADIUS: FE 15 7B DB 49 FE 27 C5 BC E2 FE 83 B9 25 8C 1F
[ {I'?]
*Mar 1 01:50:50.647: RADIUS: EAP-Message [79] 8
*Mar 1 01:50:50.647: RADIUS: 02 DC 00 06 03 19
*Mar 1 01:50:50.647: RADIUS: NAS-Port-Type [61] 6 802.11 wireless
[19]
*Mar 1 01:50:50.647: RADIUS: NAS-Port [5] 6 282
*Mar 1 01:50:50.647: RADIUS: NAS-Port-Id [87] 5 "282"
*Mar 1 01:50:50.647: RADIUS: State [24] 32
*Mar 1 01:50:50.647: RADIUS: 32 37 53 65 73 73 69 6F 6E 49 44 3D 61 63 73 35
[27SessionID=acs5]
*Mar 1 01:50:50.647: RADIUS: 31 2F 31 36 35 34 38 39 35 31 31 2F 39 3B [ 1
/165489511/9;]
*Mar 1 01:50:50.647: RADIUS: NAS-IP-Address [4] 6 10.105.136.11
*Mar 1 01:50:50.647: RADIUS: Nas-Identifier [32] 4 "ap"
*Mar 1 01:50:50.647: RADIUS(000001F6): Sending a IPv4 Radius Packet
*Mar 1 01:50:50.647: RADIUS(000001F6): Started 5 sec timeout
*Mar 1 01:50:50.647: RADIUS: Received from id 1645/74 10.106.55.91:1645, Access
-Challenge, len 78
*Mar 1 01:50:50.647: RADIUS: authenticator 0E 81 99 9E EE 39 50 FB - 6E 6D 93
8C 8E 29 94 EC
*Mar 1 01:50:50.647: RADIUS: State [24] 32
*Mar 1 01:50:50.651: RADIUS: 32 37 53 65 73 73 69 6F 6E 49 44 3D 61 63 73 35
[27SessionID=acs5]
*Mar 1 01:50:50.651: RADIUS: 31 2F 31 36 35 34 38 39 35 31 31 2F 39 3B [ 1
/165489511/9;]
*Mar 1 01:50:50.651: RADIUS: EAP-Message [79] 8
*Mar 1 01:50:50.651: RADIUS: 01 DD 00 06 19 21 [ !]
*Mar 1 01:50:50.651: RADIUS: Message-Authenticato[80] 18
*Mar 1 01:50:50.651: RADIUS: A8 54 00 89 1F 2A 01 52 FE FA D2 58 2F E5 F2 86
[ T*RX/]
*Mar 1 01:50:50.651: RADIUS(000001F6): Received from id 1645/74
*Mar 1 01:50:50.651: RADIUS/DECODE: EAP-Message fragments, 6, total 6 bytes
*Mar 1 01:50:50.655: RADIUS/ENCODE(000001F6):Orig. component type = DOT11
*Mar 1 01:50:50.655: RADIUS: AAA Unsupported Attr: ssid [347] 6
*Mar 1 01:50:50.655: RADIUS: 72 61 64 69 [ radi]
*Mar 1 01:50:50.655: RADIUS: AAA Unsupported Attr: service-type [345] 4
1
*Mar 1 01:50:50.655: RADIUS: AAA Unsupported Attr: interface [222] 3
-------------------Lines Omitted for simplicity-------------------
11 [ l2^w$qM{60]
*Mar 1 01:50:51.115: RADIUS: NAS-Port-Type [61] 6 802.11 wireless
[19]
*Mar 1 01:50:51.115: RADIUS: NAS-Port [5] 6 282
*Mar 1 01:50:51.115: RADIUS: NAS-Port-Id [87] 5 "282"
*Mar 1 01:50:51.115: RADIUS: State [24] 32
*Mar 1 01:50:51.115: RADIUS: 32 37 53 65 73 73 69 6F 6E 49 44 3D 61 63 73 35
[27SessionID=acs5]
*Mar 1 01:50:51.115: RADIUS: 31 2F 31 36 35 34 38 39 35 31 31 2F 39 3B [ 1
/165489511/9;]
*Mar 1 01:50:51.115: RADIUS: NAS-IP-Address [4] 6 10.105.136.11
*Mar 1 01:50:51.115: RADIUS: Nas-Identifier [32] 4 "ap"
*Mar 1 01:50:51.115: RADIUS(000001F6): Sending a IPv4 Radius Packet
*Mar 1 01:50:51.115: RADIUS(000001F6): Started 5 sec timeout
*Mar 1 01:50:51.115: RADIUS: Received from id 1645/80 10.106.55.91:1645, Access
-Challenge, len 115
*Mar 1 01:50:51.115: RADIUS: authenticator 74 CF 0F 34 1F 1B C1 CF -
E9 27 79 D5 F8 9C 5C 50
*Mar 1 01:50:51.467: %DOT11-6-ASSOC: Interface Dot11Radio0, Station
f8db.7f75.7804 Associated KEY_MGMT[WPAv2]
Este comando visualiza las Negociaciones AAA para autenticación entre el dispositivo cliente y el servidor de la autenticación.
ap#debug aaa authentication
AAA Authentication debugging is on
ap#term mon
ap#
*Mar 1 01:55:52.335: AAA/BIND(000001F9): Bind i/f
*Mar 1 01:55:52.859: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:52.867: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:52.875: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:52.895: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.219: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.379: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.395: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.807: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.879: AAA/AUTHEN/PPP (000001F9): Pick method list 'eap_methods'
*Mar 1 01:55:53.939: %DOT11-6-ASSOC: Interface Dot11Radio0, Station
f8db.7f75.7804 Associated KEY_MGMT[WPAv2]
Revisión | Fecha de publicación | Comentarios |
---|---|---|
1.0 |
23-Oct-2013 |
Versión inicial |