Configurar o mapeamento LDAP do AnyConnect no Firepower Threat Defense (FTD)
Contents
Introduction
Este documento fornece um exemplo de configuração de mapeamento LDAP (Lightweight Diretory Access Protocol) para usuários do AnyConnect no Firepower Threat Defense (FTD) usando uma política FlexConfig do Firepower Management Center (FMC). Essa configuração é usada para permitir que usuários específicos que pertencem a um grupo do Ative Diretory (AD) estabeleçam uma conexão VPN (Virtual Private Network). Usuários de diferentes grupos AD não definidos no mapa não poderão se conectar com o mesmo perfil.
Prerequisites
Requirements
A Cisco recomenda que você tenha conhecimento sobre estes tópicos:
- Configuração do território do AD no FMC
- Windows Ative Diretory
- Configuração do AnyConnect (SSLVPN) no FMC
- Conhecimento básico de objetos FlexConfig no FMC
Componentes Utilizados
- FirePower Manager Center (FMC) versão 6.2.3 e 6.5.0
- FirePower Threat Defense (FTD) versão 6.2.3 e 6.5.0
- Windows Server com Ative Diretory
Configurar
Configuração no FTD
Neste exemplo, os usuários que pertencem ao AD Group1 usam uma configuração de túnel-tudo e os usuários que pertencem ao AD Group2 têm acesso limitado a hosts específicos. Todos os outros usuários que não pertencem a esses grupos não podem ser autenticados.
Etapa 1. Configure o AnyConnect usando a autenticação LDAP e implante as alterações. Um exemplo pode ser encontrado neste guia.
Etapa 2. Navegue até Devices > Remote Access > Edit AnyConnect Policy > Advanced > Group Policies.
Etapa 3. Crie 3 políticas de grupo diferentes:
- Group1 com configuração de tunelamento dividido definida para Allow all traffic over tunnel.
- Group2 com configuração de tunelamento dividido definida como Dividir.
- Grupo NOACCESS para usuários que não pertencem a nenhum dos grupos anteriores. O campo Login Simultâneo Por Usuário deve ser definido como 0.
Etapa 4. Atribua a política de grupo NOACCESS ao perfil de conexão.
Etapa 5. Navegue até Object > Object Management t> FlexConfig > FlexConfig Object > Add FlexConfig Object.
Etapa 6. Adicione os valores de memberOf necessários para a configuração do mapa de atributos LDAP. Para obter o DN do grupo do servidor, você pode usar o comando "dsquery samid -group <group-name>".
A implantação precisa ser definida como Uma vez e Tipo como Prepend.
Tip: Os valores e os nomes dos atributos diferenciam maiúsculas de minúsculas. Se o mapeamento não ocorrer corretamente, certifique-se de que a ortografia e a capitalização corretas foram usadas no mapa de atributos LDAP para os nomes e valores de atributos Cisco e LDAP.
Passo 7. Criar outro Objeto FlexConfig chamado AAAserverLDAPmapping. Este objeto anexa o mapa de atributos à configuração do servidor aaa.
Os valores de Implantação precisam ser definidos como Sempre e Tipo como Anexar.
Etapa 8. Navegue até Dispositivos > FlexConfig > Editar FlexConfig atual. Certifique-se de que a ordem dos objetos FlexConfig na Política FlexConfig seja primeiro o objeto FlexConfig do mapa de atributos LDAP seguido pelo objeto servidor AAA.
Etapa 9. Implante a configuração no dispositivo para enviar essa configuração para o dispositivo gerenciado.
Para adicionar uma entrada extra no mapa LDAP, modifique o objeto FlexConfig LDAPAtributeMAP existente para incluir SOMENTE o novo valor de mapa.
Verificar
Conecte-se ao CLISH do FTD e emita esses comandos para garantir que os usuários nos grupos definidos possam se conectar.
> show vpn-sessiondb anyconnect Session Type: AnyConnect Username : cisco1 Index : 25 Assigned IP : 10.10.10.1 Public IP : 192.168.109.80 Protocol : AnyConnect-Parent SSL-Tunnel DTLS-Tunnel License : AnyConnect Premium Encryption : AnyConnect-Parent: (1)none SSL-Tunnel: (1)AES-GCM-256 DTLS-Tunnel: (1)AES256 Hashing : AnyConnect-Parent: (1)none SSL-Tunnel: (1)SHA384 DTLS-Tunnel: (1)SHA1 Bytes Tx : 15820 Bytes Rx : 160 Group Policy : Group1 Tunnel Group : AnyConnect Login Time : 16:02:45 UTC Tue Oct 9 2018 Duration : 0h:00m:38s Inactivity : 0h:00m:00s VLAN Mapping : N/A VLAN : none Audt Sess ID : 00000000000190005bbcd125 Security Grp : none Tunnel Zone : 0 > show vpn-sessiondb anyconnect Session Type: AnyConnect Username : cisco2 Index : 26 Assigned IP : 11.11.11.1 Public IP : 192.168.109.80 Protocol : AnyConnect-Parent SSL-Tunnel DTLS-Tunnel License : AnyConnect Premium Encryption : AnyConnect-Parent: (1)none SSL-Tunnel: (1)AES-GCM-256 DTLS-Tunnel: (1)AES256 Hashing : AnyConnect-Parent: (1)none SSL-Tunnel: (1)SHA384 DTLS-Tunnel: (1)SHA1 Bytes Tx : 15820 Bytes Rx : 442 Group Policy : Group2 Tunnel Group : AnyConnect Login Time : 16:04:12 UTC Tue Oct 9 2018 Duration : 0h:00m:14s Inactivity : 0h:00m:00s VLAN Mapping : N/A VLAN : none Audt Sess ID : 000000000001a0005bbcd17c Security Grp : none Tunnel Zone : 0
Troubleshoot
Debugs:
Para verificar a transação LDAP, você pode usar esses comandos debug.
> system support diagnostic-cli
debug ldap 250
debug aaa common 250
Estes são exemplos de saída bem-sucedida para cada comando debug.
firepower# debug ldap 250
debug ldap enabled at level 250
firepower#
[49] Session Start
[49] New request Session, context 0x00002aaad332f100, reqType = Authentication
[49] Fiber started
[49] Creating LDAP context with uri=ldap://192.168.109.29:389
[49] Connect to LDAP server: ldap://192.168.109.29:389, status = Successful
[49] supportedLDAPVersion: value = 3
[49] supportedLDAPVersion: value = 2
[49] LDAP server 192.168.109.29 is Active directory
[49] Binding as AdminFTD
[49] Performing Simple authentication for AdminFTD to 192.168.109.29
[49] LDAP Search:
Base DN = [DC=cisco,DC=com]
Filter = [samaccountname=cisco1]
Scope = [SUBTREE]
[49] User DN = [CN=cisco1,CN=Users,DC=cisco,DC=com]
[49] Talking to Active Directory server 192.168.109.29
[49] Reading password policy for cisco1, dn:CN=cisco1,CN=Users,DC=cisco,DC=com
[49] Read bad password count 1
[49] Binding as cisco1
[49] Performing Simple authentication for cisco1 to 192.168.109.29
[49] Processing LDAP response for user cisco1
[49] Message (cisco1):
[49] Authentication successful for cisco1 to 192.168.109.29
[49] Retrieved User Attributes:
[49] objectClass: value = top
[49] objectClass: value = person
[49] objectClass: value = organizationalPerson
[49] objectClass: value = user
[49] cn: value = cisco1
[49] givenName: value = cisco1
[49] distinguishedName: value = CN=cisco1,CN=Users,DC=cisco,DC=com
[49] instanceType: value = 4
[49] whenCreated: value = 20181009153032.0Z
[49] whenChanged: value = 20181009154032.0Z
[49] displayName: value = cisco1
[49] uSNCreated: value = 856333
[49] memberOf: value = CN=group1,CN=Users,DC=cisco,DC=com
[49] mapped to Group-Policy: value = Group1
[49] mapped to LDAP-Class: value = Group1
[49] uSNChanged: value = 856372
[49] name: value = cisco1
[49] objectGUID: value = .K.'..3N....Q...
[49] userAccountControl: value = 66048
[49] badPwdCount: value = 1
[49] codePage: value = 0
[49] countryCode: value = 0
[49] badPasswordTime: value = 131835752510299209
[49] lastLogoff: value = 0
[49] lastLogon: value = 131835733331105504
[49] pwdLastSet: value = 131835726324409149
[49] primaryGroupID: value = 513
[49] objectSid: value = ............E1.E.G..9..@s...
[49] adminCount: value = 1
[49] accountExpires: value = 9223372036854775807
[49] logonCount: value = 0
[49] sAMAccountName: value = cisco1
[49] sAMAccountType: value = 805306368
[49] userPrincipalName: value = cisco1@cisco.com
[49] objectCategory: value = CN=Person,CN=Schema,CN=Configuration,DC=cisco,DC=com
[49] dSCorePropagationData: value = 20181009153316.0Z
[49] dSCorePropagationData: value = 16010101000000.0Z
[49] lastLogonTimestamp: value = 131835732321783732
[49] Fiber exit Tx=551 bytes Rx=2628 bytes, status=1
[49] Session End
firepower# debug aaa common 250 debug aaa common enabled at level 250 firepower# AAA API: In aaa_open AAA session opened: handle = 31 AAA API: In aaa_process_async aaa_process_async: sending AAA_MSG_PROCESS AAA task: aaa_process_msg(0x00002b4ad7423b20) received message type 0 [31] AAA FSM: In AAA_StartAAATransaction [31] AAA FSM: In AAA_InitTransaction Initiating authentication to primary server (Svr Grp: LDAP-29) ------------------------------------------------ [31] AAA FSM: In AAA_BindServer [31] AAA_BindServer: Using server: 192.168.109.29 [31] AAA FSM: In AAA_SendMsg User: cisco1 Resp: callback_aaa_task: status = 1, msg = [31] AAA FSM: In aaa_backend_callback aaa_backend_callback: Handle = 31, pAcb = 0x00002aaad352bc80 AAA task: aaa_process_msg(0x00002b4ad7423b20) received message type 1 [31] AAA FSM: In AAA_ProcSvrResp Back End response: ------------------ Authentication Status: 1 (ACCEPT) [31] AAA FSM: In AAA_NextFunction AAA_NextFunction: i_fsm_state = IFSM_PRIM_AUTHENTICATE, auth_status = ACCEPT AAA_NextFunction: authen svr = LDAP-29, author svr = <none>, user pol = Group1, tunn pol = NOACCESS AAA_NextFunction: New i_fsm_state = IFSM_USER_GRP_POLICY, [31] AAA FSM: In AAA_InitTransaction aaai_policy_name_to_server_id(Group1) Got server ID 0 for group policy DB Initiating user group policy lookup (Svr Grp: GROUP_POLICY_DB) ------------------------------------------------ [31] AAA FSM: In AAA_BindServer [31] AAA_BindServer: Using server: <Internal Server> [31] AAA FSM: In AAA_SendMsg User: Group1 Resp: grp_policy_ioctl(0x00002b4ad31fd460, 114698, 0x00002b4ad7423430) grp_policy_ioctl: Looking up Group1 callback_aaa_task: status = 1, msg = [31] AAA FSM: In aaa_backend_callback aaa_backend_callback: Handle = 31, pAcb = 0x00002aaad352bc80 AAA task: aaa_process_msg(0x00002b4ad7423b20) received message type 1 [31] AAA FSM: In AAA_ProcSvrResp Back End response: ------------------ User Group Policy Status: 1 (ACCEPT) [31] AAA FSM: In AAA_NextFunction AAA_NextFunction: i_fsm_state = IFSM_USER_GRP_POLICY, auth_status = ACCEPT AAA_NextFunction: New i_fsm_state = IFSM_TUNN_GRP_POLICY, [31] AAA FSM: In AAA_InitTransaction aaai_policy_name_to_server_id(NOACCESS) Got server ID 0 for group policy DB Initiating tunnel group policy lookup (Svr Grp: GROUP_POLICY_DB) ------------------------------------------------ [31] AAA FSM: In AAA_BindServer [31] AAA_BindServer: Using server: <Internal Server> [31] AAA FSM: In AAA_SendMsg User: NOACCESS Resp: grp_policy_ioctl(0x00002b4ad31fd460, 114698, 0x00002b4ad7423430) grp_policy_ioctl: Looking up NOACCESS callback_aaa_task: status = 1, msg = [31] AAA FSM: In aaa_backend_callback aaa_backend_callback: Handle = 31, pAcb = 0x00002aaad352bc80 AAA task: aaa_process_msg(0x00002b4ad7423b20) received message type 1 [31] AAA FSM: In AAA_ProcSvrResp Back End response: ------------------ Tunnel Group Policy Status: 1 (ACCEPT) [31] AAA FSM: In AAA_NextFunction AAA_NextFunction: i_fsm_state = IFSM_TUNN_GRP_POLICY, auth_status = ACCEPT dACL processing skipped: no ATTR_FILTER_ID found AAA_NextFunction: New i_fsm_state = IFSM_DONE, [31] AAA FSM: In AAA_ProcessFinal Checking simultaneous login restriction (max allowance=3) for user cisco1 Class attribute created from LDAP-Class attribute [31] AAA FSM: In AAA_Callback user attributes: 1 User-Name(1) 6 "cisco1" 2 User-Password(2) 13 (hidden) 3 Group-Policy(4121) 6 "Group1" 4 AAA-AVP-Table(4243) 1639 "g[06][00][00]$[00][00][00]x[01][00][00][8F][01][00][00]" 5 DAP class attribute required(20510) 4 1 6 LDAP-Class(20520) 7 "Group1[00]" User Access-Lists: user_acl[0] = NULL user_acl[1] = NULL user policy attributes: <--- Group-Policy Configuration (Group1) 1 Filter-Id(11) 8 "" 2 Session-Timeout(27) 4 0 3 Idle-Timeout(28) 4 30 4 Simultaneous-Logins(4098) 4 3 5 Primary-DNS(4101) 4 IP: 0.0.0.0 6 Secondary-DNS(4102) 4 IP: 0.0.0.0 7 Primary-WINS(4103) 4 IP: 0.0.0.0 8 Secondary-WINS(4104) 4 IP: 0.0.0.0 9 Tunnelling-Protocol(4107) 4 96 10 Banner(4111) 0 0x00002aaad49daa38 ** Unresolved Attribute ** 11 Split-Tunnel-Inclusion-List(4123) 8 "" 12 Default-Domain-Name(4124) 0 0x00002aaad49daa41 ** Unresolved Attribute ** 13 Secondary-Domain-Name-List(4125) 0 0x00002aaad49daa42 ** Unresolved Attribute ** 14 Split-Tunneling-Policy(4151) 4 0 15 Group-giaddr(4157) 4 IP: 0.0.0.0 16 WebVPN SVC Keepalive interval(4203) 4 20 17 WebVPN SVC Client DPD period(4204) 4 30 18 WebVPN SVC Gateway DPD period(4205) 4 30 19 WebVPN SVC Rekey period(4206) 4 0 20 WebVPN SVC Rekey method(4207) 4 0 21 WebVPN SVC Compression(4208) 4 0 22 WebVPN SVC Firewall Rule(4211) 17 "public#,private#," 23 WebVPN SVC DTLS Compression(4213) 4 0 24 WebVPN SVC DTLS enable(4219) 4 1 25 WebVPN SVC MTU(4221) 4 1406 26 CVC-Modules(4223) 4 "dart" 27 CVC-Profile(4224) 11 "FTD03#user," 28 CVC-Ask(4227) 4 2 29 CVC-Ask-Timeout(4228) 4 0 30 VLAN ID(4236) 4 0 31 WebVPN Idle timeout alert interval(4244) 4 1 32 WebVPN Session timeout alert interval(4245) 4 1 33 List of address pools to assign addresses from(4313) 3 "SSL" 34 SVC ignore DF bit(4326) 4 0 35 Configure the behaviour of DNS queries by the client when Split tunneling is enabled(4328) 4 0 36 Primary-IPv6-DNS(4329) 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 37 Secondary-IPv6-DNS(4330) 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 38 Client Bypass Protocol(4331) 4 0 39 IPv6-Split-Tunneling-Policy(4332) 4 0 User Policy Access-Lists: user_acl[0] = NULL user_acl[1] = NULL tunnel policy attributes: <--- Default Group-Policy attributes (NOACCESS) 1 Filter-Id(11) 8 "" 2 Session-Timeout(27) 4 0 3 Idle-Timeout(28) 4 30 4 Simultaneous-Logins(4098) 4 0 5 Primary-DNS(4101) 4 IP: 0.0.0.0 6 Secondary-DNS(4102) 4 IP: 0.0.0.0 7 Primary-WINS(4103) 4 IP: 0.0.0.0 8 Secondary-WINS(4104) 4 IP: 0.0.0.0 9 Tunnelling-Protocol(4107) 4 96 10 Banner(4111) 0 0x00002aaad2580328 ** Unresolved Attribute ** 11 Group-Policy(4121) 8 "NOACCESS" 12 Split-Tunnel-Inclusion-List(4123) 8 "" 13 Default-Domain-Name(4124) 0 0x00002aaad2580331 ** Unresolved Attribute ** 14 Secondary-Domain-Name-List(4125) 0 0x00002aaad2580332 ** Unresolved Attribute ** 15 Split-Tunneling-Policy(4151) 4 0 16 Group-giaddr(4157) 4 IP: 0.0.0.0 17 WebVPN SVC Keepalive interval(4203) 4 20 18 WebVPN SVC Client DPD period(4204) 4 30 19 WebVPN SVC Gateway DPD period(4205) 4 30 20 WebVPN SVC Rekey period(4206) 4 0 21 WebVPN SVC Rekey method(4207) 4 0 22 WebVPN SVC Compression(4208) 4 0 23 WebVPN SVC Firewall Rule(4211) 17 "public#,private#," 24 WebVPN SVC DTLS Compression(4213) 4 0 25 WebVPN SVC DTLS enable(4219) 4 1 26 WebVPN SVC MTU(4221) 4 1406 27 CVC-Modules(4223) 4 "dart" 28 CVC-Profile(4224) 11 "FTD03#user," 29 CVC-Ask(4227) 4 2 30 CVC-Ask-Timeout(4228) 4 0 31 VLAN ID(4236) 4 0 32 WebVPN Idle timeout alert interval(4244) 4 1 33 WebVPN Session timeout alert interval(4245) 4 1 34 SVC ignore DF bit(4326) 4 0 35 Configure the behaviour of DNS queries by the client when Split tunneling is enabled(4328) 4 0 36 Primary-IPv6-DNS(4329) 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 37 Secondary-IPv6-DNS(4330) 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 38 Client Bypass Protocol(4331) 4 0 39 IPv6-Split-Tunneling-Policy(4332) 4 0 Tunnel Policy Access-Lists: user_acl[0] = NULL user_acl[1] = NULL Auth Status = ACCEPT aaai_internal_cb: handle is 31, pAcb is 0x00002aaad352bc80, pAcb->tq.tqh_first is 0x0000000000000000 AAA API: In aaa_close Checking simultaneous login restriction (max allowance=3) for user cisco1 AAA task: aaa_process_msg(0x00002b4ad7423b20) received message type 2 In aaai_close_session (31) AAA API: In aaa_send_acct_start
FeedbackContate a Cisco
- Abrir um caso de suporte
- (É necessário um Contrato de Serviço da Cisco)