Hallo, now I have the users configured as follow: user1 Auth-Type := EAP Cisco-AVPair := "ssid=SSID1", Tunnel-Medium-Type = IEEE-802, Tunnel-Private-Group-Id = 2, Tunnel-Type = VLAN user2 Auth-Type := EAP Cisco-AVPair := "ssid=SSID2", Tunnel-Medium-Type = IEEE-802, Tunnel-Private-Group-Id = 3, Tunnel-Type = VLAN The AP has the radius-server vsa send authentication, but when I connect for example to the SSID2 using user1, radius write this log for a big number of request: rad_recv: Access-Request packet from host 192.168.9.104:1645, id=167, length=137 User-Name = "user1" Framed-MTU = 1400 Called-Station-Id = "xxxx.xxxx.xxxx" Calling-Station-Id = "xxxx.xxxx.xxxx" Service-Type = Login-User Message-Authenticator = 0xd58071e7b7c3b158323ae6e2da5cf746 EAP-Message = 0x020600060d00 NAS-Port-Type = Wireless-802.11 NAS-Port = 1215 State = 0x15f928ed12d8d4d1a278530b6dd26c21 NAS-IP-Address = 192.168.9.104 NAS-Identifier = "ap" Processing the authorize section of radiusd.conf modcall: entering group authorize for request 53 modcall[authorize]: module "preprocess" returns ok for request 53 modcall[authorize]: module "mschap" returns noop for request 53 rlm_realm: No '@' in User-Name = "user1", looking up realm NULL rlm_realm: No such realm "NULL" modcall[authorize]: module "suffix" returns noop for request 53 rlm_eap: EAP packet type response id 6 length 6 rlm_eap: No EAP Start, assuming it's an on-going EAP conversation modcall[authorize]: module "eap" returns updated for request 53 users: Matched entry user1 at line 14 modcall[authorize]: module "files" returns ok for request 53 modcall: leaving group authorize (returns updated) for request 53 rad_check_password: Found Auth-Type EAP auth: type "EAP" Processing the authenticate section of radiusd.conf modcall: entering group authenticate for request 53 rlm_eap: Request found, released from the list rlm_eap: EAP/tls rlm_eap: processing type tls rlm_eap_tls: Authenticate rlm_eap_tls: processing TLS rlm_eap_tls: Received EAP-TLS ACK message rlm_eap_tls: ack handshake is finished eaptls_verify returned 3 eaptls_process returned 3 rlm_eap: Freeing handler modcall[authenticate]: module "eap" returns ok for request 53 modcall: leaving group authenticate (returns ok) for request 53 Login OK: [user1/<no User-Password attribute>] (from client ap-test port 1215 cli 000c.f135.f1ba) Sending Access-Accept of id 167 to 192.168.9.104 port 1645 Cisco-AVPair := "ssid=SSID1" Tunnel-Medium-Type:0 = IEEE-802 Tunnel-Private-Group-Id:0 = "2" Tunnel-Type:0 = VLAN MS-MPPE-Recv-Key = 0x4b79e8c8d51a317ecfc389ae1109e9cbf4fed548b081a3d9a207cb1673fb2011 MS-MPPE-Send-Key = 0x00c78f66a7706dbc37c2ef3a9cf1f4f183b28d840da50d583ae780041fe1f1d9 EAP-Message = 0x03060004 Message-Authenticator = 0x00000000000000000000000000000000 User-Name = "user1" Finished request 53 The XP client tell that the SSID2 is connected, but if I try to navigate on the VLAN1 or VLAN2 i can't do it. Why the radius receive a big number of request from the client and it doesn't sent a failed authorization? It is possible to eliminate the requests after the first? It is possible to send to the XP client a failed authorization? At the moment the client doesn't understand if it is or isn't connected to the SSID. Thanks a lot for your time Bye Antonio