I would like to use my RADIUS server to restrict access to configured SSID on a per user basis.
According to the documentation linked above i add the following attribute to a test user:
ospite-5vh Cisco-AVPair += "ssid=Interactive_Ospiti"
So, enabling debug radius authentication, i see:
Jun 12 08:30:08.266: RADIUS(00001A96): Send Access-Request to 212.183.164.38:1812 id 1645/128, len 177
Jun 12 08:30:08.266: RADIUS: authenticator CC C9 63 16 B0 62 74 52 - A7 95 DF 1D 93 F3 08 37
Jun 12 08:30:08.267: RADIUS: User-Name [1] 12 "ospite-5vh"
Jun 12 08:30:08.267: RADIUS: Framed-MTU [12] 6 1400
Jun 12 08:30:08.267: RADIUS: Called-Station-Id [30] 16 "8478.acf0.9002"
Jun 12 08:30:08.267: RADIUS: Calling-Station-Id [31] 16 "2064.3267.44ca"
Jun 12 08:30:08.267: RADIUS: Vendor, Cisco [26] 29
Jun 12 08:30:08.267: RADIUS: Cisco AVpair [1] 23 "ssid=Interactive_Test"
Jun 12 08:30:08.267: RADIUS: Service-Type [6] 6 Login [1]
Jun 12 08:30:08.267: RADIUS: Message-Authenticato[80] 18
Jun 12 08:30:08.267: RADIUS: 7D 95 ED 39 3D 12 82 9F 30 8D 1F F4 84 04 43 C9 [}??9=???0?????C?]
Jun 12 08:30:08.267: RADIUS: EAP-Message [79] 17
Jun 12 08:30:08.267: RADIUS: 02 01 00 0F 01 6F 73 70 69 74 65 2D 35 76 68 [?????ospite-5vh]
Jun 12 08:30:08.267: RADIUS: NAS-Port-Type [61] 6 802.11 wireless [19]
Jun 12 08:30:08.267: RADIUS: NAS-Port [5] 6 7037
Jun 12 08:30:08.268: RADIUS: NAS-Port-Id [87] 6 "7037"
Jun 12 08:30:08.268: RADIUS: NAS-IP-Address [4] 6 10.132.0.253
Jun 12 08:30:08.268: RADIUS: Nas-Identifier [32] 13 "UFFICIO-AP1"
Jun 12 08:30:08.325: RADIUS: Received from id 1645/128 212.183.164.38:1812, Access-Challenge, len 95
Jun 12 08:30:08.325: RADIUS: authenticator 8A C9 30 9B 1B 13 20 91 - 4C D6 FE B3 2A 1E F7 85
Jun 12 08:30:08.325: RADIUS: Vendor, Cisco [26] 31
Jun 12 08:30:08.325: RADIUS: Cisco AVpair [1] 25 "ssid=Interactive_Ospiti"
Jun 12 08:30:08.325: RADIUS: EAP-Message [79] 8
Jun 12 08:30:08.325: RADIUS: 01 02 00 06 19 20 [????? ]
Jun 12 08:30:08.325: RADIUS: Message-Authenticato[80] 18
Jun 12 08:30:08.325: RADIUS: 31 7D 79 7B C3 67 7E 71 5A FA 53 D4 76 2E 9D A4 [1}y{?g~qZ?S?v.??]
Jun 12 08:30:08.326: RADIUS: State [24] 18
Jun 12 08:30:08.326: RADIUS: 9E B6 71 EA 9E B4 68 7A 8E 86 18 54 AF BD AF 55 [??q???hz???T???U]
Jun 12 08:30:08.326: RADIUS(00001A96): Received from id 1645/128
So i would expect the request to be refused since the "association SSID" does not match the RADIUS one, instead it is acknowledged and the user gets connected.
Relevant configurations follow:
aaa authentication login default group radius aaa authentication login eap_methods group radius aaa authorization network default if-authenticated aaa accounting nested aaa accounting update periodic 5 aaa accounting network eap_methods start-stop group radius ! dot11 ssid Interactive vlan 1 authentication open authentication key-management wpa mbssid guest-mode wpa-psk ascii 7 01120101551F035F7324DB1194F0ABEE1C0B03175B5C51 ! dot11 ssid Interactive_Ospiti vlan 4 authentication open authentication key-management wpa mbssid guest-mode wpa-psk ascii 7 15475E1D0725242D262D265D12730301204 ! dot11 ssid Interactive_Test vlan 5 authentication open eap eap_methods authentication network-eap eap_methods authentication key-management wpa version 2 accounting eap_methods mbssid guest-mode ! interface Dot11Radio0 no ip address no ip route-cache encryption vlan 4 mode ciphers aes-ccm tkip encryption vlan 1 mode ciphers aes-ccm tkip encryption vlan 5 mode ciphers aes-ccm tkip ssid Interactive ssid Interactive_Ospiti ssid Interactive_Test antenna gain 0 mbssid no short-slot-time speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 channel 2457 station-role root ! interface Dot11Radio0.1 description LAN Interactive encapsulation dot1Q 1 native no ip route-cache bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding bridge-group 1 spanning-disabled ! interface Dot11Radio0.4 description LAN Ospiti encapsulation dot1Q 4 no ip route-cache bridge-group 4 bridge-group 4 subscriber-loop-control bridge-group 4 block-unknown-source no bridge-group 4 source-learning no bridge-group 4 unicast-flooding bridge-group 4 spanning-disabled ! interface Dot11Radio0.5 description LAN Test encapsulation dot1Q 5 no ip route-cache bridge-group 5 bridge-group 5 subscriber-loop-control bridge-group 5 block-unknown-source no bridge-group 5 source-learning no bridge-group 5 unicast-flooding bridge-group 5 spanning-disabled ! radius-server attribute 32 include-in-access-req format %h radius-server attribute 4 10.132.0.253 radius-server host 10.132.0.99 auth-port 1812 acct-port 1813 non-standard key 7 131312061E3811242A142A7C79 radius-server vsa send accounting radius-server vsa send authentication
And here's the output of # show versione
Cisco IOS Software, C1040 Software (C1140-K9W7-M), Version 12.4(25d)JA1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2011 by Cisco Systems, Inc. Compiled Thu 11-Aug-11 02:58 by prod_rel_team ROM: Bootstrap program is C1040 boot loader BOOTLDR: C1040 Boot Loader (C1140-BOOT-M) Version 12.4(23c)JA3, RELEASE SOFTWARE (fc1) UFFICIO-AP1 uptime is 8 weeks, 2 days, 8 hours, 27 minutes System returned to ROM by power-on System restarted at 22:39:10 UTC Tue Apr 16 2013 System image file is "flash:/c1140-k9w7-mx.124-25d.JA1/c1140-k9w7-mx.124-25d.JA1"
Can anyone help?
Best Answer
Try changing the operator in the freeradius config to "=~" :
ospite-5vh Cisco-AVPair =~ "ssid=Interactive_Ospiti"