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Este documento describe cómo configurar Cisco Converged Access 5760, 3850 y 3650 Series Wireless LAN Controllers (WLC) para actuar como servidores RADIUS que realizan Cisco Extensible Authentication Protocol-Flexible Authentication via Secure Protocol (EAP-FAST, en este ejemplo) para la autenticación de cliente.
Normalmente, se utiliza un servidor RADIUS externo para autenticar a los usuarios, lo que en algunos casos no es una solución factible. En estas situaciones, un WLC de acceso convergente puede actuar como un servidor RADIUS, donde los usuarios se autentican contra la base de datos local configurada en el WLC. Esto se denomina función de servidor RADIUS local.
Cisco recomienda tener conocimientos sobre estos temas antes de intentar esta configuración:
La información que contiene este documento se basa en las siguientes versiones de software y hardware.
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Nota: Use la Command Lookup Tool (clientes registrados solamente) para obtener más información sobre los comandos usados en esta sección.
Esta imagen proporciona un ejemplo de un diagrama de red:
Esta configuración se completa en dos pasos:
Complete estos pasos para configurar el WLC con la CLI:
aaa new-model
aaa local authentication eapfast authorization eapfast
aaa authentication dot1x eapfast local
aaa authorization credential-download eapfast local
aaa authentication dot1x default local
eap profile eapfast
method fast
!
eap method fast profile eapfast
description test
authority-id identity 1
authority-id information 1
local-key 0 cisco123
wlan eapfastlocal 13 eapfastlocal
client vlan VLAN0020
local-auth eapfast
session-timeout 1800
no shutdown
ip dhcp snooping vlan 12,20,30,40,50
ip dhcp snooping
!
ip dhcp pool vlan20
network 20.20.20.0 255.255.255.0
default-router 20.20.20.251
dns-server 20.20.20.251
interface TenGigabitEthernet1/0/1
switchport trunk native vlan 12
switchport mode trunk
ip dhcp relay information trusted
ip dhcp snooping trust
Complete estos pasos para configurar el WLC con la GUI:
Complete estos pasos para verificar que su configuración funcione correctamente:
Cisco recomienda que utilice seguimientos para resolver problemas de red inalámbrica. Los seguimientos se guardan en el búfer circular y no hacen un uso intensivo del procesador.
Habilite estos seguimientos para obtener los registros de autenticación de Capa 2 (L2):
Habilite estos seguimientos para obtener los registros de eventos DHCP:
A continuación se muestran algunos ejemplos de trazas exitosas:
[04/10/14 18:49:50.719 IST 3 8116] 0021.6a89.51ca Association received from
mobile on AP c8f9.f983.4260
[04/10/14 18:49:50.719 IST 4 8116] 0021.6a89.51ca qos upstream policy is
unknown and downstream policy is unknown
[04/10/14 18:49:50.719 IST 5 8116] 0021.6a89.51ca apChanged 1 wlanChanged 0
mscb ipAddr 20.20.20.6, apf RadiusOverride 0x0, numIPv6Addr=0
[04/10/14 18:49:50.719 IST 6 8116] 0021.6a89.51ca Applying WLAN policy on MSCB.
[04/10/14 18:49:50.719 IST 7 8116] 0021.6a89.51ca Applying WLAN ACL policies
to client
[04/10/14 18:49:50.719 IST 9 8116] 0021.6a89.51ca Applying site-specific IPv6
override for station 0021.6a89.51ca - vapId 13, site 'default-group',
interface 'VLAN0020'
[04/10/14 18:49:50.719 IST a 8116] 0021.6a89.51ca Applying local bridging
Interface Policy for station 0021.6a89.51ca - vlan 20, interface 'VLAN0020'
[04/10/14 18:49:50.719 IST b 8116] 0021.6a89.51ca STA - rates (8):
140 18 152 36 176 72 96 108 48 72 96 108 0 0 0 0
[04/10/14 18:49:50.727 IST 2f 8116] 0021.6a89.51ca Session Manager Call Client
57ca4000000048, uid 42, capwap id 50b94000000012,Flag 4, Audit-Session ID
0a6987b253468efb0000002a, method list
[04/10/14 18:49:50.727 IST 30 22] ACCESS-CORE-SM-CLIENT-SPI-NOTF:
[0021.6a89.51ca, Ca3] Session update from Client[1] for 0021.6a89.51ca,
ID list 0x00000000
[04/10/14 18:49:50.727 IST 31 22] ACCESS-CORE-SM-CLIENT-SPI-NOTF:
[0021.6a89.51ca, Ca3] (UPD): method: Dot1X, method list: none, aaa id:
0x0000002A
[04/10/14 18:49:50.727 IST 32 22] ACCESS-CORE-SM-CLIENT-SPI-NOTF:
[0021.6a89.51ca, Ca3] (UPD): eap profile: eapfast
[04/10/14 18:49:50.728 IST 4b 278] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
Posting AUTH_START for 0xF700000A
[04/10/14 18:49:50.728 IST 4c 278] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
0xF700000A:entering request state
[04/10/14 18:49:50.728 IST 4d 278] ACCESS-METHOD-DOT1X-NOTF:[0021.6a89.51ca,Ca3]
Sending EAPOL packet
[04/10/14 18:49:50.728 IST 4e 278] ACCESS-METHOD-DOT1X-INFO:[0021.6a89.51ca,Ca3]
Platform changed src mac of EAPOL packet
[04/10/14 18:49:50.728 IST 4f 278] ACCESS-METHOD-DOT1X-INFO:[0021.6a89.51ca,Ca3]
EAPOL packet sent to client 0xF700000A
[04/10/14 18:49:50.728 IST 50 278] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
0xF700000A:idle request action
[04/10/14 18:49:50.761 IST 51 8116] 0021.6a89.51ca 1XA: Received 802.11 EAPOL
message (len 5) from mobile
[04/10/14 18:49:50.761 IST 52 8116] 0021.6a89.51ca 1XA: Received EAPOL-Start
from mobile
[04/10/14 18:49:50.761 IST 53 8116] 0021.6a89.51ca 1XA: EAPOL-Start -
EAPOL start message from mobile as mobile is in Authenticating state, restart
authenticating
[04/10/14 18:49:50.816 IST 95 278] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
0xF700000A:entering response state
[04/10/14 18:49:50.816 IST 96 278] ACCESS-METHOD-DOT1X-NOTF:[0021.6a89.51ca,Ca3]
Response sent to the server from 0xF700000A
[04/10/14 18:49:50.816 IST 97 278] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
0xF700000A:ignore response action
[04/10/14 18:49:50.816 IST 98 203] Parsed CLID MAC Address = 0:33:106:137:81:202
[04/10/14 18:49:50.816 IST 99 203] AAA SRV(00000000): process authen req
[04/10/14 18:49:50.816 IST 9a 203] AAA SRV(00000000): Authen method=LOCAL
[04/10/14 18:49:50.846 IST 11d 181] ACCESS-CORE-SM-CLIENT-SPI-NOTF:
[0021.6a89.51ca, Ca3] Session authz status notification sent to Client[1] for
0021.6a89.51ca with handle FE000052, list 630007B2
[04/10/14 18:49:50.846 IST 11e 181]ACCESS-METHOD-DOT1X-NOTF:[0021.6a89.51ca,Ca3]
Received Authz Success for the client 0xF700000A (0021.6a89.51ca)
[04/10/14 18:49:50.846 IST 11f 271] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
Posting AUTHZ_SUCCESS on Client 0xF700000A
[04/10/14 18:49:50.846 IST 120 271] ACCESS-METHOD-DOT1X-DEB:[0021.6a89.51ca,Ca3]
0xF700000A:entering authenticated state
[04/10/14 18:49:50.846 IST 121 271]ACCESS-METHOD-DOT1X-NOTF:[0021.6a89.51ca,Ca3]
EAPOL success packet was sent earlier.
[04/10/14 18:49:50.846 IST 149 8116] 0021.6a89.51ca 1XA:authentication succeeded
[04/10/14 18:49:50.846 IST 14a 8116] 0021.6a89.51ca 1XK: Looking for BSSID
c8f9.f983.4263 in PMKID cache
[04/10/14 18:49:50.846 IST 14b 8116] 0021.6a89.51ca 1XK: Looking for BSSID
c8f9.f983.4263 in PMKID cache
[04/10/14 18:49:50.846 IST 14c 8116] 0021.6a89.51ca Starting key exchange with
mobile - data forwarding is disabled
[04/10/14 18:49:50.846 IST 14d 8116] 0021.6a89.51ca 1XA: Sending EAPOL message
to mobile, WLAN=13 AP WLAN=13
[04/10/14 18:49:50.858 IST 14e 8116] 0021.6a89.51ca 1XA: Received 802.11 EAPOL
message (len 123) from mobile
[04/10/14 18:49:50.858 IST 14f 8116] 0021.6a89.51ca 1XA: Received EAPOL-Key from
mobile
[04/10/14 18:49:50.858 IST 150 8116] 0021.6a89.51ca 1XK: Received EAPOL-key in
PTK_START state (msg 2) from mobile
[04/10/14 18:49:50.858 IST 151 8116] 0021.6a89.51ca 1XK: Stopping retransmission
timer
[04/10/14 18:49:50.859 IST 152 8116] 0021.6a89.51ca 1XA: Sending EAPOL message
to mobile, WLAN=13 AP WLAN=13
[04/10/14 18:49:50.862 IST 153 8116] 0021.6a89.51ca 1XA: Received 802.11 EAPOL
message (len 99) from mobile
[04/10/14 18:49:50.862 IST 154 8116] 0021.6a89.51ca 1XA: Received EAPOL-Key from
mobile
[04/10/14 18:49:50.862 IST 155 8116] 0021.6a89.51ca 1XK: Received EAPOL-key in
PTKINITNEGOTIATING state (msg 4) from mobile
[04/10/14 18:49:50.863 IST 172 338] [WCDB] wcdb_ffcp_cb: client (0021.6a89.51ca)
client (0x57ca4000000048): FFCP operation (UPDATE) return code (0)
[04/10/14 18:49:50.914 IST 173 273] dhcp pkt processing routine is called for pak
with SMAC = 0021.6a89.51ca and SRC_ADDR = 0.0.0.0
[04/10/14 18:49:50.914 IST 174 219] sending dhcp packet outafter processing with
SMAC = 0021.6a89.51ca and SRC_ADDR = 0.0.0.0
[04/10/14 18:49:50.914 IST 175 256] DHCPD: address 20.20.20.6 mask 255.255.255.0
[04/10/14 18:49:54.279 IST 176 273] dhcp pkt processing routine is called for pak
with SMAC = 0021.6a89.51ca and SRC_ADDR = 20.20.20.6
[04/10/14 18:49:54.279 IST 177 219] sending dhcp packet outafter processing with
SMAC = 0021.6a89.51ca and SRC_ADDR = 20.20.20.6