Como adicionar a autenticação de AAA (Xauth) para o PIX IPSec 5.2 e posteriores

Introdução

Autenticação e tarifação RADIUS e TACACS+ e, até certo ponto, autorização são feitas para túneis de Cliente de Hardware Cisco Secure VPN Client 1.1 e Cisco VPN 3000 2.5 que terminam no PIX. As alterações no PIX 5.2 e na autenticação estendida posterior (Xauth) em relação às versões anteriores que incluem o suporte à lista de acesso de autenticação, autorização e contabilização (AAA - Authentication, Authorization, and Accounting) para controlar quais usuários autenticados podem acessar e suportar a terminação Xauth do Cisco VPN 3000 Client 2.5. O comando vpn group split-tunneling permite que o VPN 3000 Client se conecte à rede dentro do PIX, bem como a outras redes (por exemplo, a Internet) ao mesmo tempo. No PIX 5.3 e posterior, a alteração de AAA em relação às versões anteriores do código é que as portas RADIUS são configuráveis. No PIX 6.0, o suporte para o VPN Client 3.x é adicionado. Isso requer o grupo Diffie-Hellman 2.

Pré-requisitos

Requisitos

Não existem requisitos específicos para este documento.

Componentes Utilizados

As informações neste documento são baseadas nestas versões de software e hardware:

• Software PIX Versão 5.2.1

• Cisco Secure VPN Client 1.1

• Cisco VPN 3000 2.5 Client ou VPN Client 3.x

  Observação: o Cisco VPN Client versão 3.0.x não funciona com versões do PIX anteriores à 6.0. Consulte Hardware e VPN Clients da Cisco que Suportam IPsec/PPTP/L2TP para obter mais informações.

As informações neste documento foram criadas a partir de dispositivos em um ambiente de laboratório específico. Todos os dispositivos utilizados neste documento foram iniciados com uma configuração (padrão) inicial. Se a sua rede estiver ativa, certifique-se de que entende o impacto potencial de qualquer comando.

Conventions

Consulte as Convenções de Dicas Técnicas da Cisco para obter mais informações sobre convenções de documentos.

Informações de Apoio

O software PIX Firewall versão 6.2 suporta o download de Listas de Controle de Acesso (ACLs - Access Control Lists) para o PIX Firewall a partir de um Servidor de Controle de Acesso (ACS - Access Control Server). Isso permite a configuração de ACLs por usuário em um servidor AAA para fornecer autorização de ACL por usuário. Em seguida, é possível fazer o download através do ACS para o PIX Firewall. Este recurso é suportado apenas em servidores RADIUS. Ele não é suportado para servidores TACACS+.

Etapas de depuração

Conclua estas etapas de depuração:

1. Verifique se a configuração do PIX Xauth funciona antes de adicionar a autenticação AAA.

   Se você não conseguir passar o tráfego antes de implementar o AAA, não poderá fazê-lo posteriormente.

2. Ative algum tipo de registro no PIX:

   • Não emita o comando logging console debugging em um sistema com carga pesada.

   • O comando logging buffered debugging pode ser emitido. Em seguida, emita o comando show logging.

   • O registro também pode ser enviado a um servidor System Message Log (syslog) e examinado.

3. Ativar depuração no TACACS+ ou nos servidores RADIUS. Todos os servidores possuem esta opção.

Comandos de depuração do PIX

• debug crypto ipsec sa— Este comando debug exibe eventos IPsec.

• debug crypto isakmp sa— Este comando debug exibe mensagens sobre eventos do Internet Key Exchange (IKE).

• debug crypto isakmp engine— Este comando debug exibe mensagens sobre eventos IKE.

Depuração no lado cliente

Ative o Log Viewer para ver as depurações do lado do cliente no Cisco Secure 1.1 ou no VPN 3000 Client 2.5.

Perfis do servidor de AAA

Cisco Secure UNIX TACACS+

user = noacl{
password = clear "********" 
service=shell {
} 
}
user = pixb{
  password = clear "********" 
  service=shell {
  set acl=115
  } 
  }
user = 3000full{
  password = clear "********" 
  service=shell {
  } 
  } 
user = 3000partial{
  password = clear "********" 
  service=shell {
  } 
  }

Cisco Secure ACS para Windows TACACS+

Os usuários parciais noacl, 3000full e 3000partial precisam apenas de um nome de usuário e uma senha no Cisco Secure ACS para Windows. O usuário pixb precisa de um nome de usuário, uma senha, um shell/exec marcado no grupo, uma ACL marcada e 115 na caixa.

Cisco Secure UNIX RADIUS

user = noacl{
password = clear "********" 
}
user = pixb{
  password = clear "********" 
  radius=Cisco {
  reply_attributes= {
  9,1="acl=115"
  } 
  } 
  }
user = 3000full{
  password = clear "********" 
  }
user = 3000partial{
  password = clear "********" 
  }

Cisco Secure ACS para Windows RADIUS

RADIUS/Cisco é o tipo de dispositivo. Os usuários parciais noacl, 3000full e 3000partial precisam apenas de um nome de usuário e uma senha no Cisco Secure ACS para Windows. O usuário pixb precisa de um nome de usuário, uma senha e uma marca e acl=115 na caixa retangular Cisco/RADIUS onde consta 009\001 AV-Pair (específico do fornecedor).

Observação: você precisa do atributo de fornecedor para a ACL. O atributo 11, filter-id, não é válido. Este problema recebeu a ID de bug da Cisco CSCdt50422 (somente clientes registrados) . É corrigido no PIX Software Release 6.0.1.

RADIUS da Merit (oferecendo suporte a Cisco AV Pairs)

noacl Password= "noacl" 

pixb Password= "pixb"
cisco-avpair = "acl=115"

3000full Password= "3000full"

3000partial Password= "3000partial"

Diagrama de Rede

Portas RADIUS configuráveis (5.3 e posterior)

Alguns servidores RADIUS utilizam portas RADIUS diferentes de 1645/1646 (geralmente 1812/1813). No PIX 5.3 e posterior, as portas de autenticação e contabilização RADIUS podem ser alteradas para portas diferentes das portas 1645/1646 padrão com estes comandos:

• aaa-server radius-authport #

• aaa-server radius-acctport #

Como autenticar com Xauth sem grupos VPN

Neste exemplo, todos os três VPN Clients são autenticados com Xauth. No entanto, os VPN Clients podem acessar somente a rede dentro do PIX, pois o tunelamento dividido não está em uso. Consulte Como autenticar Xauth com grupos VPN para obter mais informações sobre split-tunneling. As ACLs passadas do servidor AAA aplicam-se a qualquer VPN Clients. Neste exemplo, o objetivo é que o usuário noacl se conecte e obtenha todos os recursos dentro do PIX. O usuário pixb se conecta, mas como a ACL 115 é passada do servidor AAA durante o processo Xauth, o usuário só pode chegar a 10.1.1.40. O acesso a 10.1.1.41 e a todos os outros endereços IP dentro dele é negado.

Observação: o PIX Software Release 6.0 é necessário para suporte ao VPN Client 3.0.

Instalação do Cisco Secure VPN Client 1.1 - Xauth sem grupos VPN

Name of connection:
Remote party address = IP_Subnet = 10.1.1.0, Mask 255.255.255.0
Connect using Secure Gateway Tunnel to 172.18.124.157
My Identity:
Select certificate = None
ID_Type = ip address, pre-shared key and fill in key
('cisco1234') - matches that of pix in 'isakmp key' command
Security policy = defaults
Proposal 1 (Authen) = DES, MD5
Proposal 2 (Key Exchange) = DES, MD5, Tunnel

Abra uma janela de negação de serviço (DoS) e emita o comando ping -t #.#.#.# . Quando a janela Xauth for exibida, digite o nome de usuário e a senha que correspondem àqueles no servidor AAA.

Configuração do VPN 3000 Client 2.5 ou VPN Client 3.x - Xauth sem grupos VPN

Conclua estes passos:

1. Selecione Options > Properties > Authentication > Group Name.

2. O nome do grupo é don't_care e a senha corresponde àquela no PIX no comando isakmp key. O nome do host é 172.18.124.157.

3. Clique em Conectar.

4. Quando a janela Xauth aparecer, digite o nome de usuário e a senha que correspondem àqueles no servidor AAA.

Xauth sem grupos VPN - Configuração do PIX

PIX Version 5.2(1)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname goss-pixb
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
fixup protocol rsh 514
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
names
access-list 108 permit ip 10.1.1.0 255.255.255.0 
192.168.1.0 255.255.255.0 
access-list 115 deny ip any host 10.1.1.41 
access-list 115 permit ip any host 10.1.1.40
pager lines 24
logging on
no logging timestamp
no logging standby
logging console debugging
no logging monitor
no logging buffered
logging trap debugging
no logging history
logging facility 20
logging queue 512
interface ethernet0 auto
interface ethernet1 auto
mtu outside 1500
mtu inside 1500
ip address outside 172.18.124.157 255.255.255.0
ip address inside 10.1.1.101 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool test 192.168.1.1-192.168.1.5
no failover
failover timeout 0:00:00
failover poll 15
failover ip address outside 0.0.0.0
failover ip address inside 0.0.0.0
arp timeout 14400
global (outside) 1 172.18.124.154
nat (inside) 0 access-list 108
Nat (inside) 1 10.1.1.0 255.255.255.0 0 0
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 
rpc 0:10:00 h323 0:05:00 
sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
AAA-server TACACS+ protocol tacacs+ 
AAA-server RADIUS protocol radius 
AAA-server AuthInbound protocol tacacs+ 
AAA-server AuthInbound (outside) host 172.18.124.114 cisco timeout 5
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set myset esp-des esp-md5-hmac 
crypto dynamic-map dynmap 10 set transform-set myset
crypto map mymap 10 ipsec-isakmp dynamic dynmap
crypto map mymap client configuration address initiate
crypto map mymap client configuration address respond
crypto map mymap client authentication AuthInbound
crypto map mymap interface outside
isakmp enable outside
isakmp key ******** address 0.0.0.0 netmask 0.0.0.0 
isakmp identity address
isakmp client configuration address-pool local test outside

!--- Internet Security Association and Key Management Protocol (ISAKMP) !--- Policy for Cisco VPN Client 2.5 or !--- Cisco Secure VPN Client 1.1.

isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5

!--- The 1.1 and 2.5 VPN Clients use Diffie-Hellman (D-H) !--- group 1 policy (PIX default).

isakmp policy 10 group 1
isakmp policy 10 lifetime 86400
! 

!--- ISAKMP Policy for VPN Client 3.0

isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5

!--- The VPN 3.0 Clients use D-H group 2 policy !--- and PIX 6.0 code.

isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
telnet timeout 5
ssh timeout 5
terminal width 80
Cryptochecksum:05c6a2f3a7d187162c4408503b55affa
: end
[OK]

Como autenticar com Xauth com grupos VPN

Neste exemplo, o VPN 3000 Client 2.5 ou o VPN Client 3.0 pode ser autenticado com Xauth e o tunelamento dividido está em vigor. Devido à associação ao Grupo VPN, uma ACL é passada do PIX para o VPN 3000 Client. Ele especifica que somente a rede dentro do PIX tem um túnel criptografado. Outro tráfego (talvez para a Internet) não é criptografado.

Neste exemplo, um VPN Client, com o nome de usuário 3000full (no servidor AAA), no grupo vpn3000-all (no PIX) acessa toda a rede 10.1.1.X dentro do PIX ao mesmo tempo que a Internet. O cliente VPN recebe informações de wins-server, dns-server e domain-name. O outro VPN Client, com o nome de usuário 3000partial (no servidor AAA), no grupo vpn3000-41 (no PIX) acessa apenas um endereço IP dentro da rede (10.1.1.40) em virtude do perfil do grupo. Esse VPN Client não recebe informações de wins e dns-server, mas ainda faz o split-tunneling.

Observação: o PIX Software Release 6.0 é necessário para suporte ao VPN Client 3.0.

Configuração do VPN Client 2.5 ou 3.0 - Xauth com grupos VPN

Conclua estes passos:

Observação: a configuração do VPN 2.5 ou 3.0 Client depende do usuário envolvido.

1. Selecionar opções > Propriedades > Autenticação.

2. O nome do grupo e a senha do grupo correspondem ao nome do grupo no PIX como em: vpngroup vpn3000-all password ******** ou vpngroup vpn3000-41 password ********. O nome do host é 172.18.124.157.

3. Clique em Conectar.

4. Quando a janela de Xauth for exibida, digite o nome de usuário e a senha usados no servidor de AAA.

Neste exemplo, quando o usuário 3000full é autenticado, ele coleta as informações do grupo vpn3000-all. O usuário 3000partial coleta as informações do grupo vpn3000-41. A janela mostra Negotiating security profiles e Your link is now secure.

O usuário 3000full usa a senha para o grupo vpn3000-all. A lista de acesso 108 é associada a esse grupo para fins de separação de túneis. O túnel é formado para a rede 10.1.1.x. O tráfego flui sem criptografia para dispositivos que não estão na lista de acesso 108 (por exemplo, a Internet). Isso é tunelamento dividido.

Esta é a saída da janela de status de conexão do VPN Client para o usuário 3000full:

        Network         Mask 
key     10.1.1.0        255.255.255.0
key     172.18.124.157  255.255.255.255

O usuário 3000partial usa a senha para o grupo vpn3000-41. A lista de acesso 125 é associada a esse grupo para fins de separação de túneis. O túnel é formado para o dispositivo 10.1.1.41. O tráfego flui sem criptografia para dispositivos que não estão na lista de acesso 125 (por exemplo, a Internet). No entanto, o tráfego não flui para o dispositivo 10.1.1.40 porque esse tráfego não é roteável. Ele não está especificado na lista de túneis de criptografia.

Esta é a saída da janela de status da conexão do VPN Client para o usuário 3000partial:

        Network         Mask
key     10.1.1.41       255.255.255.255
key     172.18.124.157  255.255.255.255

Xauth com grupos VPN - Configuração do PIX

Observação: o Cisco Secure VPN Client 1.1 não funciona com isso porque não há chave de Internet Security Association and Key Management Protocol (ISAKMP). Adicione o comando isakmp key ******** address 0.0.0.0 netmask 0.0.0.0 para fazer com que todos os VPN Clients funcionem.

PIX Version 5.2(1)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd OnTrBUG1Tp0edmkr encrypted
hostname goss-pixb
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 1720
fixup protocol rsh 514
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
names
access-list 108 permit ip 10.1.1.0 255.255.255.0 
192.168.1.0 255.255.255.0 
access-list 125 permit ip host 10.1.1.41 any 
pager lines 24
logging on
no logging timestamp
no logging standby
logging console debugging
no logging monitor
no logging buffered
logging trap debugging
no logging history
logging facility 20
logging queue 512
interface ethernet0 auto
interface ethernet1 auto
mtu outside 1500
mtu inside 1500
ip address outside 172.18.124.157 255.255.255.0
ip address inside 10.1.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool test 192.168.1.1-192.168.1.5
no failover
failover timeout 0:00:00
failover poll 15
failover ip address outside 0.0.0.0
failover ip address inside 0.0.0.0
arp timeout 14400
global (outside) 1 172.18.124.154
Nat (inside) 0 access-list 108
Nat (inside) 1 10.1.1.0 255.255.255.0 0 0
route outside 0.0.0.0 0.0.0.0 172.18.124.1 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 
rpc 0:10:00 h323 0:05:00 
sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
AAA-server TACACS+ protocol tacacs+ 
AAA-server RADIUS protocol radius 
AAA-server AuthInbound protocol tacacs+ 
AAA-server AuthInbound (outside) host 172.18.124.111 
cisco timeout 5
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set myset ESP-Des esp-md5-hmac 
crypto dynamic-map dynmap 10 set transform-set myset
crypto map mymap 10 ipsec-isakmp dynamic dynmap
crypto map mymap client configuration address initiate
crypto map mymap client configuration address respond
crypto map mymap client authentication AuthInbound
crypto map mymap interface outside
isakmp enable outside
isakmp identity address
isakmp client configuration address-pool local test outside

!--- ISAKMP Policy for Cisco VPN Client 2.5 or !--- Cisco Secure VPN Client 1.1.

isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5

!--- The 1.1 and 2.5 VPN Clients use Diffie-Hellman (D-H) !--- group 1 policy (PIX default).

isakmp policy 10 group 1
isakmp policy 10 lifetime 86400
! 

!--- ISAKMP Policy for VPN Client 3.0

isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5

!--- The VPN 3.0 Clients use D-H group 2 policy !--- and PIX 6.0 code.

isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
vpngroup vpn3000-all address-pool test
vpngroup vpn3000-all dns-server 10.1.1.40
vpngroup vpn3000-all wins-server 10.1.1.40
vpngroup vpn3000-all default-domain rtp.cisco.com
vpngroup vpn3000-all split-tunnel 108
vpngroup vpn3000-all idle-time 1800
vpngroup vpn3000-all password ********
vpngroup vpn3000-41 address-pool test
vpngroup vpn3000-41 split-tunnel 125
vpngroup vpn3000-41 idle-time 1800
vpngroup vpn3000-41 password ********
telnet timeout 5
ssh timeout 5
terminal width 80
Cryptochecksum:429db0e7d20451fc28074f4d6f990d25
: end

Xauth com grupos VPN e ACLs por usuário disponíveis para download - Configuração do ACS

Configurar o Cisco Secure ACS

Conclua estes passos:

1. Clique em Interface Configuration (Configuração de interface) e selecione a opção User-Level Downloadable ACLs (ACLs de download ao nível do usuário).

   

2. Clique em Shared Profile Components e definia um ACL que possa ser carregado.

   

3. Clique em User Setup (Configuração de Usuário). Selecione a opção Assign PIX ACL. Escolha a ACL correta na lista suspensa.

   

Xauth com grupos VPN e ACLs para download por usuário - Configuração do PIX 6.x

Se você deseja conduzir uma ACL que pode ser obtida por download por usuário para autorização, use o software PIX Firewall versão 6.2(2). Consulte o bug da Cisco ID CSCdx47975 (somente clientes registrados) .

PIX Version 6.2(2)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password 8Ry2YjIyt7RRXU24 encrypted
passwd 2KFQnbNIdI.2KYOU encrypted
hostname sv2-4
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
names
access-list 108 permit ip 10.1.1.0 255.255.255.0 
192.168.1.0 255.255.255.0 
pager lines 24
logging buffered debugging
interface ethernet0 auto
interface ethernet1 auto
mtu outside 1500
mtu inside 1500
ip address outside 10.66.79.69 255.255.255.224
ip address inside 10.1.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
ip local pool test 192.168.1.1-192.168.1.5
pdm history enable
arp timeout 14400
nat (inside) 0 access-list 108
conduit permit icmp any any 
route outside 0.0.0.0 0.0.0.0 10.66.79.65 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 
rpc 0:10:00 h323 0:05:00 sip 
0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+ 
aaa-server RADIUS protocol radius 
aaa-server LOCAL protocol local 
aaa-server AuthInbound protocol radius 
aaa-server AuthInbound (outside) host 10.66.79.244 cisco123 timeout 10
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
sysopt connection permit-ipsec
no sysopt route dnat
crypto ipsec transform-set myset esp-des esp-md5-hmac 
crypto dynamic-map dynmap 10 set transform-set myset
crypto map mymap 10 ipsec-isakmp dynamic dynmap

!--- This commands the router to respond to the VPN 3.x Client. 

crypto map mymap client configuration address respond

!--- This tells the router to expect Xauth for the VPN 3.x Client.
 
crypto map mymap client authentication AuthInbound
crypto map mymap interface outside
isakmp enable outside
isakmp policy 20 authentication pre-share
isakmp policy 20 encryption des
isakmp policy 20 hash md5
isakmp policy 20 group 2
isakmp policy 20 lifetime 86400
! 

!--- This is the VPN group configuration. 

vpngroup vpn3000-all address-pool test
vpngroup vpn3000-all default-domain apt.cisco.com

!--- The split-tunnel mode-config is not used, !--- which enforces authorization on a per-user basis. 

vpngroup vpn3000-all idle-time 1800
vpngroup vpn3000-all password ********
! 
telnet timeout 5
ssh timeout 5
terminal width 80
Cryptochecksum:7c3d067232f427e7522f4a679e963c58 
end:

Xauth com grupos VPN e ACLs disponíveis para download por usuário - Configuração do ASA/ PIX 7.x

PIX Version 7.1(1)
!
hostname PIX
domain-name cisco.com
enable password 9jNfZuG3TC5tCVH0 encrypted
names
!
interface Ethernet0
 nameif outside
 security-level 0
 ip address 10.66.79.69 255.255.255.224
!
interface Ethernet1
 nameif inside
 security-level 100
 ip address 10.1.1.1 255.255.255.0
!
passwd 2KFQnbNIdI.2KYOU encrypted
ftp mode passive
dns domain-lookup inside
dns server-group DefaultDNS
 timeout 30

access-list 108 permit ip 10.1.1.0 255.255.255.0 192.168.1.0 255.255.255.0
pager lines 24
logging buffer-size 500000
logging console debugging
logging monitor errors
mtu outside 1500
mtu inside 1500
ip local pool test 192.168.1.1-192.168.1.5
no failover
icmp permit any outside
icmp permit any inside
no asdm history enable
arp timeout 14400

nat (inside) 0 access-list 108
route outside 0.0.0.0 0.0.0.0 10.66.79.65 1
timeout xlate 3:00:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00
timeout mgcp-pat 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute

aaa-server AuthInbound protocol radius
aaa-server AuthInbound host 10.66.79.244 key cisco123

group-policy vpn3000 internal
group-policy vpn3000 attributes
 dns-server value 172.16.1.1
 default-domain value cisco.com

username vpn3000 password nPtKy7KDCerzhKeX encrypted
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart

crypto ipsec transform-set my-set esp-des esp-md5-hmac

crypto dynamic-map dynmap 10 set transform-set my-set

crypto dynamic-map dynmap 10 set reverse-route

crypto map mymap 10 ipsec-isakmp dynamic dynmap

crypto map mymap interface outside

isakmp enable outside
isakmp policy 10 authentication pre-share
isakmp policy 10 encryption des
isakmp policy 10 hash md5
isakmp policy 10 group 2
isakmp policy 10 lifetime 1000

isakmp policy 65535 authentication pre-share
isakmp policy 65535 encryption 3des
isakmp policy 65535 hash sha
isakmp policy 65535 group 2
isakmp policy 65535 lifetime 86400


tunnel-group DefaultRAGroup general-attributes
 authentication-server-group (outside) vpn

tunnel-group vpn3000 type ipsec-ra
 
tunnel-group vpn3000 general-attributes
 address-pool test
 authentication-server-group vpn
 

tunnel-group vpn3000 ipsec-attributes
 pre-shared-key *

telnet timeout 5
ssh timeout 5
console timeout 0
!
class-map inspection_default
 match default-inspection-traffic
!
!
policy-map global_policy
 class inspection_default
  inspect dns maximum-length 512
  inspect ftp
  inspect h323 h225
  inspect h323 ras
  inspect netbios
  inspect rsh
  inspect rtsp
  inspect skinny
  inspect esmtp
  inspect sqlnet
  inspect sunrpc
  inspect tftp
  inspect sip
  inspect xdmcp
!
service-policy global_policy global
Cryptochecksum:ecb58c5d8ce805b3610b198c73a3d0cf
: end

Como configurar Xauth local para conexão de cliente VPN

Estes comandos são necessários para configurar o Xauth local para a conexão do VPN Client:

• aaa-server server-tag protocol local

• crypto map map-name client authentication aaa-server-name

Execute o comando username para definir usuários locais no PIX.

Para usar o banco de dados de autenticação de usuário do PIX Firewall local, insira LOCAL para o parâmetro server-tag do comando aaa-server. O comando aaa-server é emitido com o comando crypto map para estabelecer uma associação de autenticação de modo que os clientes VPN sejam autenticados quando acessarem o PIX Firewall.

Como adicionar relatório

Esta é a sintaxe do comando para adicionar relatório:

• aaa accounting acctg_service|except inbound|outbound|if_name local_ip local_mask foreign_ip foreign_mask tacacs+|radius ;

ou (novo no ponto 5.2):

• aaa accounting include acctg_service inbound|outbound match server_tag

Na configuração do PIX, este é o comando adicionado:

• a contabilização aaa inclui qualquer entrada 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 AuthInbound ;

ou (novo no ponto 5.2):

• access-list 150 permit ip any any aaa accounting match 150 outside AuthInbound

Observação: o comando sysopt connection permit-ipsec, não o comando sysopt ipsec pl-compatible, é necessário para que a contabilidade Xauth funcione. O relatório Xauth não funciona apenas com o comando sysopt ipsec pl-compatible. A contabilização Xauth é válida para conexões TCP. Não é válido para ICMP (Internet Control Message Protocol) ou UDP (User Datagram Protocol).

Exemplo de relatório TACACS+

Fri Sep 8 03:48:40 2000 172.18.124.157 
pixc PIX 192.168.1.1 start task_id=0x17 foreign_ip=192.168.1.1 
    local_ip=10.1.1.40 cmd=telnet
Fri Sep 8 03:48:44 2000 172.18.124.157 pixc PIX 192.168.1.1 
    stop task_id=0x17 foreign_ip=192.168.1.1 local_ip=10.1.1.40 
    cmd=telnet elapsed_time=4 bytes_in=42 bytes_out=103
Fri Sep 8 03:49:31 2000 172.18.124.157 pixc PIX 192.168.1.1 
    start task_id=0x18 
foreign_ip=192.168.1.1 local_ip=10.1.1.40 cmd=http
Fri Sep 8 03:49:35 2000 172.18.124.157 pixc PIX 192.168.1.1 
    stop task_id=0x18 foreign_ip=192.168.1.1 local_ip=10.1.1.40 
    cmd=http elapsed_time=4 bytes_in=242 bytes_out=338

Exemplo de relatório RADIUS

Acct-Status-Type = Start
NAS-IP-Address = 172.18.124.157
Login-IP-Host = 10.1.1.40
Login-TCP-Port = 23
Acct-Session-Id = 0x00000003
User-Name = noacl
Vendor-Specific = Source-IP=192.168.1.1
Vendor-Specific = Source-Port=1141
Vendor-Specific = Destination-IP=10.1.1.40
Vendor-Specific = Destination-Port=23

Acct-Status-Type = Start
NAS-IP-Address = 172.18.124.157
Login-IP-Host = 10.1.1.40
Login-TCP-Port = 80
Acct-Session-Id = 0x00000004
User-Name = noacl
Vendor-Specific = Source-IP=192.168.1.1
Vendor-Specific = Source-Port=1168
Vendor-Specific = Destination-IP=10.1.1.40
Vendor-Specific = Destination-Port=80

Acct-Status-Type = Stop
NAS-IP-Address = 172.18.124.157
Login-IP-Host = 10.1.1.41
Login-TCP-Port = 80
Acct-Session-Id = 0x00000008
User-Name = noacl
Acct-Session-Time = 4
Acct-Input-Octets = 242
Acct-Output-Octets = 338
Vendor-Specific = Source-IP=192.168.1.1
Vendor-Specific = Source-Port=1182
Vendor-Specific = Destination-IP=10.1.1.41
Vendor-Specific = Destination-Port=80

Acct-Status-Type = Stop
NAS-IP-Address = 172.18.124.157
Login-IP-Host = 10.1.1.40
Login-TCP-Port = 23
Acct-Session-Id = 0x00000015
User-Name = noacl
Acct-Session-Time = 33
Acct-Input-Octets = 43
Acct-Output-Octets = 103
Vendor-Specific = Source-IP=192.168.1.1
Vendor-Specific = Source-Port=1257
Vendor-Specific = Destination-IP=10.1.1.40
Vendor-Specific = Destination-Port=23

Comandos debug e show - Xauth sem grupos VPN

goss-pixb#show debug
debug crypto ipsec 1
debug crypto isakmp 1
debug crypto engine
debug fover status
tx Off
rx Off
open Off
cable Off
txdmp Off
rxdmp Off
ifc Off
rxip Off
txip Off
get Off
put Off
verify Off
switch Off
fail Off
fmsg Off
goss-pixb#terminal monitor
goss-pixb# 

crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_MM exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 10 policy
ISAKMP: encryption DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 1
ISAKMP: auth pre-share
ISAKMP (0): atts are acceptable. Next payload is 0
ISAKMP (0): SA is doing pre-shared key authentication
using id type ID_IPV4_ADDR
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_MM exchange
ISAKMP (0): processing KE payload. Message ID = 0

ISAKMP (0): processing NONCE payload. Message ID = 0

ISAKMP (0): processing vendor id payload

ISAKMP (0): processing vendor id payload

return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_MM exchange
ISAKMP (0): processing ID payload. Message ID = 0
ISAKMP (0): processing HASH payload. Message ID = 0
ISAKMP (0): processing NOTIFY payload 24578 protocol 1
spi 0, message ID = 0
ISAKMP (0): processing notify INITIAL_CONTACTIPSEC(key_engine): 
got a queue event...
IPSEC(key_engine_delete_sas): rec'd delete notify from ISAKMP
IPSEC(key_engine_delete_sas): delete all SAs shared with 172.18.124.99

ISAKMP (0): SA has been authenticated

ISAKMP (0): ID payload
next-payload : 8
type : 1
protocol : 17
port : 500
length : 8
ISAKMP (0): Total payload length: 12
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
ISAKMP (0:0): Need XAUTH
ISAKMP/xauth: request attribute XAUTH_TYPE
ISAKMP/xauth: request attribute XAUTH_USER_NAME
ISAKMP/xauth: request attribute XAUTH_USER_PASSWORD
ISAKMP (0:0): initiating peer config to 172.18.124.99. 
ID = 2218162690 (0x84367a02)
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 172.18.124.99. 
Message ID = 2156074032
ISAKMP: Config payload CFG_REPLY
return status is IKMP_ERR_NO_RETRANS109005: Authentication succeeded 
for user 'pixb' from 172.18.124.99/0 to 0.0.0.0/0 on 
interface IKE-XAUTH
ISAKMP (0:0): initiating peer config to 172.18.124.99. 
ID = 2218162690 (0x84367a02)
109005: Authentication succeeded for user 'pixb' from 172.18.124.157
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 172.18.124.99. 
Message ID = 2156497080
ISAKMP: Config payload CFG_ACK
ISAKMP (0:0): initiating peer config to 172.18.124.99. 
ID = 393799466 (0x1778e72a)
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 172.18.124.99. 
Message ID = 2156156112
ISAKMP: Config payload CFG_ACK
ISAKMP (0:0): peer accepted the address!
return status is IKMP_NO_ERROR.99/0 to 0.0.0.0/0 on 
interface IKE-XAUTH

crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. Message ID = 2323118710

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP (0): atts are acceptable.IPSEC(validate_proposal_request): 
proposal part #1,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
src_proxy= 192.168.1.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= ESP-Des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4

ISAKMP (0): processing NONCE payload. Message ID = 2323118710

ISAKMP (0): processing ID payload. Message ID = 2323118710
ISAKMP (0): ID_IPV4_ADDR src 192.168.1.1 prot 0 port 0
ISAKMP (0): processing ID payload. Message ID = 2323118710
ISAKMP (0): ID_IPV4_ADDR_SUBNET dst 10.1.1.0/255.255.255.0 
prot 0 port 0
IPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0xeeae8930(4004415792) for SA 
from 172.18.124.99 to 172.18.124.157 for prot 3

return status is IKMP_NO_ERROR4
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_AUTH_AWAITmap_alloc_entry: allocating entry 1
map_alloc_entry: allocating entry 2

ISAKMP (0): Creating IPSec SAs
inbound SA from 172.18.124.99 to 172.18.124.157 
(proxy 192.168.1.1 to 10.1.1.0)
has spi 4004415792 and conn_id 1 and flags 4
outbound SA from 172.18.124.157 to 172.18.124.99 
(proxy 10.1.1.0 to 192.168.1.1)
has spi 1281287211 and conn_id 2 and flags 4
IPSEC(key_engine): got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
src_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0xeeae8930(4004415792), conn_id= 1, keysize= 0, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 172.18.124.157, dest= 172.18.124.99, 
src_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
dest_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x4c5ee42b(1281287211), conn_id= 2, keysize= 0, flags= 0x4

return status is IKMP_NO_ERROR02101: decaps: rec'd 
IPSEC packet has invalid spi for destaddr=172.18.124.157, 
prot=esp, spi=0xeeae8930(0)
602301: sa created, (sa) sa_dest= 172.18.124.157, sa_prot= 50, 
sa_spi= 0xeeae8930(4004415792), sa_trans= esp-des esp-md5-hmac,
 sa_conn_id= 1

602301: sa created, (sa) sa_dest= 172.18.124.99, sa_prot= 50, 
sa_spi= 0x4c5ee42b(1281287211), sa_trans= esp-des esp-md5-hmac,
 sa_conn_id= 2

109011: Authen Session Start: user 'pixb', sid 5
109015: Authorization denied (acl=115) for user 'pixb' from 
192.168.1.1/0 to 10.1.1.40/8 on interface outside
109015: Authorization denied (acl=115) for user 'pixb' from 
192.168.1.1/0 to 10.1.1.40/8 on interface outside
109015: Authorization denied (acl=115) for user 'pixb' from 
192.168.1.1/0 to 10.1.1.40/8 on interface outside
109015: Authorization denied (acl=115) for user 'pixb' from 
192.168.1.1/0 to 10.1.1.40/8 on interface outside

goss-pixb# 
goss-pixb#show uauth
Current Most Seen
Authenticated Users 1 1
Authen In Progress 0 1
ipsec user 'pixb' at 192.168.1.1, authenticated
access-list 115
goss-pixb#show access-list
access-list 108 permit ip 10.1.1.0 255.255.255.0 192.168.1.0 
255.255.255.0 (hitcnt=18) 
access-list 125 permit ip host 10.1.1.41 any (hitcnt=0) 
access-list dynacl4 permit ip 10.1.1.0 255.255.255.0 host 
192.168.1.1 (hitcnt=0) 
access-list 115 permit ip any host 10.1.1.41 (hitcnt=0) 
access-list 115 deny ip any host 10.1.1.42 (hitcnt=0)

Depurar e Mostrar - Xauth com Grupos VPN

crypto_isakmp_process_block: src 172.18.124.96, 
dest 172.18.124.157
goss-pixb#show debug
debug crypto ipsec 1
debug crypto isakmp 1
debug crypto engine
debug fover status
tx Off
rx Off
open Off
cable Off
txdmp Off
rxdmp Off
ifc Off
rxip Off
txip Off
get Off
put Off
verify Off
switch Off
fail Off
fmsg Off
goss-pixb# 
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 10 policy
ISAKMP: encryption DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 1
ISAKMP: auth pre-share
ISAKMP (0): atts are acceptable. Next payload is 3
ISAKMP (0): processing KE payload. message ID = 0

ISAKMP (0): processing NONCE payload. message ID = 0

ISAKMP (0): processing ID payload. message ID = 0
ISAKMP (0): processing vendor id payload

ISAKMP (0): speaking to a VPN3000 client

ISAKMP (0): ID payload
next-payload : 10
type : 1
protocol : 17
port : 500
length : 8
ISAKMP (0): Total payload length: 12
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_AG exchange
ISAKMP (0): processing HASH payload. message ID = 0
ISAKMP (0): SA has been authenticated
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
ISAKMP (0:0): Need XAUTH
ISAKMP/xauth: request attribute XAUTH_TYPE
ISAKMP/xauth: request attribute XAUTH_USER_NAME
ISAKMP/xauth: request attribute XAUTH_USER_PASSWORD
ISAKMP (0:0): initiating peer config to 172.18.124.99. 
ID = 1396280702 (0x53398d7e)
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 172.18.124.99. 
message ID = 2156608344
ISAKMP: Config payload CFG_REPLY
return status is IKMP_ERR_NO_RETRANS10
ISAKMP (0:0): initiating peer config to 172.18.124.99. 
ID = 1396280702 (0x53398d7e)9
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 172.18.124.99. 
message ID = 2156115984
ISAKMP: Config payload CFG_ACK
ISAKMP (0:0): peer accepted the address!
ISAKMP (0:0): processing saved QM.
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 1697984837

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP (0): atts are acceptable.
IPSEC(validate_proposal_request): proposal part #1,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 172.18.124.157/255.255.255.255/0/0 (type=1), 
src_proxy= 192.168.1.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4

ISAKMP (0): processing NONCE payload. message ID = 1697984837

ISAKMP (0): processing ID payload. message ID = 1697984837
ISAKMP (0): ID_IPV4_ADDR src 192.168.1.1 prot 0 port 0
ISAKMP (0): processing ID payload. message ID = 1697984837
ISAKMP (0): ID_IPV4_ADDR dst 172.18.124.157 prot 0 port 0
ISAKMP (0): processing NOTIFY payload 24578 protocol 1
spi 0, message ID = 1697984837
ISAKMP (0): processing notify INITIAL_CONTACTIPSEC(key_engine): 
got a queue event...
IPSEC(key_engine_delete_sas): rec'd delete notify from ISAKMP
IPSEC(key_engine_delete_sas): delete all SAs shared with 172.18.124.99
IPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0x6a9d3f79(1788690297) for SA 
from 172.18.124.99 to 172.18.124.157 for prot 3

return status is IKMP_NO_ERROR0
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_AUTH_AWAITmap_alloc_entry: allocating entry 1
map_alloc_entry: allocating entry 2

ISAKMP (0): Creating IPSec SAs
inbound SA from 172.18.124.99 to 172.18.124.157 
(proxy 192.168.1.1 to 172.18.124.157)
has spi 1788690297 and conn_id 1 and flags 4
outbound SA from 172.18.124.157 to 172.18.124.99 
(proxy 172.18.124.157 to 192.168.1.1)
has spi 2854452814 and conn_id 2 and flags 4
IPSEC(key_engine): got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 172.18.124.157/0.0.0.0/0/0 (type=1), 
src_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x6a9d3f79(1788690297), conn_id= 1, keysize= 0, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 172.18.124.157, dest= 172.18.124.99, 
src_proxy= 172.18.124.157/0.0.0.0/0/0 (type=1), 
dest_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0xaa237e4e(2854452814), conn_id= 2, keysize= 0, flags= 0x4

return status is IKMP_NO_ERROR05: Authentication succeeded 
for user 'pixc' from 172.18.124.99/0 to 0.0.0.0/0 on interface IKE-XAUTH
602301: sa created, (sa) sa_dest= 172.18.124.157, sa_prot= 50, 
sa_spi= 0x6a9d3f79(1788690297), sa_trans= esp-des esp-md5-hmac , 
sa_conn_id= 1

602301: sa created, (sa) sa_dest= 172.18.124.99, sa_prot= 50, 
sa_spi= 0xaa237e4e(2854452814), sa_trans= esp-des esp-md5-hmac , 
sa_conn_id= 2

109011: Authen Session Start: user 'pixc', sid 19

crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 3361949217

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP (0): atts are acceptable.
IPSEC(validate_proposal_request): proposal part #1,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
src_proxy= 192.168.1.1/255.255.255.255/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x0(0), conn_id= 0, keysize= 0, flags= 0x4

ISAKMP (0): processing NONCE payload. message ID = 3361949217

ISAKMP (0): processing ID payload. message ID = 3361949217
ISAKMP (0): ID_IPV4_ADDR src 192.168.1.1 prot 0 port 0
ISAKMP (0): processing ID payload. message ID = 3361949217
ISAKMP (0): ID_IPV4_ADDR_SUBNET dst 10.1.1.0/255.255.255.0 prot 0 port 0
IPSEC(key_engine): got a queue event...
IPSEC(spi_response): getting spi 0xfec4c3aa(4274308010) for SA 
from 172.18.124.99 to 172.18.124.157 for prot 3

return status is IKMP_NO_ERROR4
crypto_isakmp_process_block: src 172.18.124.99, dest 172.18.124.157
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_AUTH_AWAITmap_alloc_entry: allocating entry 4
map_alloc_entry: allocating entry 3

ISAKMP (0): Creating IPSec SAs
inbound SA from 172.18.124.99 to 172.18.124.157 
(proxy 192.168.1.1 to 10.1.1.0)
has spi 4274308010 and conn_id 4 and flags 4
outbound SA from 172.18.124.157 to 172.18.124.99 
(proxy 10.1.1.0 to 192.168.1.1)
has spi 798459812 and conn_id 3 and flags 4
IPSEC(key_engine): got a queue event...
IPSEC(initialize_sas): ,
(key eng. msg.) dest= 172.18.124.157, src= 172.18.124.99, 
dest_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
src_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0xfec4c3aa(4274308010), conn_id= 4, keysize= 0, flags= 0x4
IPSEC(initialize_sas): ,
(key eng. msg.) src= 172.18.124.157, dest= 172.18.124.99, 
src_proxy= 10.1.1.0/255.255.255.0/0/0 (type=4), 
dest_proxy= 192.168.1.1/0.0.0.0/0/0 (type=1),
protocol= ESP, transform= esp-des esp-md5-hmac , 
lifedur= 0s and 0kb, 
spi= 0x2f9787a4(798459812), conn_id= 3, keysize= 0, flags= 0x4

return status is IKMP_NO_ERROR02101: decaps: rec'd IPSEC 
packet has invalid spi for destaddr=172.18.124.157, prot=esp, 
spi=0xfec4c3aa(0)
602301: sa created, (sa) sa_dest= 172.18.124.157, sa_prot= 50, 
sa_spi= 0xfec4c3aa(4274308010), sa_trans= esp-des esp-md5-hmac , 
sa_conn_id= 4

602301: sa created, (sa) sa_dest= 172.18.124.99, sa_prot= 50, 
sa_spi= 0x2f9787a4(798459812), sa_trans= esp-des esp-md5-hmac , 
sa_conn_id= 3


goss-pixb#show uauth
Current Most Seen
Authenticated Users 1 1
Authen In Progress 0 1
ipsec user 'pixc' at 192.168.1.1, authenticated
goss-pixb#show crypto ipsec sa


interface: outside
Crypto map tag: mymap, local addr. 172.18.124.157

local ident (addr/mask/prot/port): (172.18.124.157/255.255.255.255/0/0)
remote ident (addr/mask/prot/port): (192.168.1.1/255.255.255.255/0/0)
current_peer: 172.18.124.99
dynamic allocated peer ip: 192.168.1.1

PERMIT, flags={}
#pkts encaps: 0, #pkts encrypt: 0, #pkts digest 0
#pkts decaps: 0, #pkts decrypt: 0, #pkts verify 0
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0, 
#pkts decompress failed: 0
#send errors 0, #recv errors 0

local crypto endpt.: 172.18.124.157, remote crypto endpt.: 172.18.124.99
path mtu 1500, ipsec overhead 56, media mtu 1500
current outbound spi: aa237e4e

inbound esp sas:
spi: 0x6a9d3f79(1788690297)
transform: esp-des esp-md5-hmac ,
<--- More ---> in use settings ={Tunnel, }
slot: 0, conn id: 1, crypto map: mymap
sa timing: remaining key lifetime (k/sec): (4608000/28519)
IV size: 8 bytes
replay detection support: Y


inbound ah sas:


inbound pcp sas:


outbound esp sas:
spi: 0xaa237e4e(2854452814)
transform: esp-des esp-md5-hmac ,
in use settings ={Tunnel, }
slot: 0, conn id: 2, crypto map: mymap
sa timing: remaining key lifetime (k/sec): (4608000/28510)
IV size: 8 bytes
replay detection support: Y


outbound ah sas:
<--- More ---> 

outbound pcp sas:



local ident (addr/mask/prot/port): (10.1.1.0/255.255.255.0/0/0)
remote ident (addr/mask/prot/port): (192.168.1.1/255.255.255.255/0/0)
current_peer: 172.18.124.99
dynamic allocated peer ip: 192.168.1.1

PERMIT, flags={}
#pkts encaps: 4, #pkts encrypt: 4, #pkts digest 4
#pkts decaps: 4, #pkts decrypt: 4, #pkts verify 4
#pkts compressed: 0, #pkts decompressed: 0
#pkts not compressed: 0, #pkts compr. failed: 0, 
#pkts decompress failed: 0
#send errors 0, #recv errors 0

local crypto endpt.: 172.18.124.157, remote crypto 
endpt.:172.18.124.99
path mtu 1500, ipsec overhead 56, media mtu 1500
current outbound spi: 2f9787a4

inbound esp sas:
spi: 0xfec4c3aa(4274308010)
<--- More ---> transform: esp-des esp-md5-hmac ,
in use settings ={Tunnel, }
slot: 0, conn id: 4, crypto map: mymap
sa timing: remaining key lifetime (k/sec): (4607999/27820)
IV size: 8 bytes
replay detection support: Y


inbound ah sas:


inbound pcp sas:


outbound esp sas:
spi: 0x2f9787a4(798459812)
transform: esp-des esp-md5-hmac ,
in use settings ={Tunnel, }
slot: 0, conn id: 3, crypto map: mymap
sa timing: remaining key lifetime (k/sec): (4607999/27820)
IV size: 8 bytes
replay detection support: Y


<--- More ---> outbound ah sas:


outbound pcp sas:

Depurar e mostrar - Xauth com ACLs baixáveis por usuário

crypto_isakmp_process_block: src 10.66.79.229, 
dest 10.66.79.69
VPN Peer: ISAKMP: Added new peer: ip:10.66.79.229 
Total VPN Peers:1
VPN Peer: ISAKMP: Peer ip:10.66.79.229 Ref cnt incremented to:1 
Total VPN Peers:1
OAK_AG exchange
ISAKMP (0): processing SA payload. message ID = 0

ISAKMP (0): Checking ISAKMP transform 1 against priority 20 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 2 against priority 20 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 3 against priority 20 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 4 against priority 20 policy
ISAKMP: encryption 3DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 5 against priority 20 policy
ISAKMP: encryption DES-CBC
ISAKMP: hash SHA
ISAKMP: default group 2
ISAKMP: extended auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are not acceptable. Next payload is 3
ISAKMP (0): Checking ISAKMP transform 6 against priority 20 policy
ISAKMP: encryption DES-CBC
ISAKMP: hash MD5
ISAKMP: default group 2
ISAKMP: extended auth pre-share
ISAKMP: life type in seconds
ISAKMP: life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are acceptable. Next payload is 3
ISAKMP (0): processing KE payload. message ID = 0

ISAKMP (0): processing NONCE payload. message ID = 0

ISAKMP (0): processing ID payload. message ID = 0
ISAKMP (0): processing vendor id payload

ISAKMP (0): received xauth v6 vendor id

ISAKMP (0): processing vendor id payload

ISAKMP (0): remote peer supports dead peer detection

ISAKMP (0): processing vendor id payload

ISAKMP (0): speaking to a Unity client

ISAKMP (0): ID payload
next-payload : 10
type : 2
protocol : 17
port : 500
length : 10
ISAKMP (0): Total payload length: 14
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
OAK_AG exchange
ISAKMP (0): processing HASH payload. message ID = 0
ISAKMP (0): processing NOTIFY payload 24578 protocol 1
spi 0, message ID = 0RADIUS_GET_PASS
RADIUS_REQUEST
raidus.c: rad_mkpkt_authen
attribute:
type 1, length 10, content:
80917fb0: 74 65 73 74 75 73 65 72 | testuser
attribute:
type 4, length 6, content:
80917fb0: 0a 42 | .B
80917fc0: 4f 45 | OE
attribute:
type 5, length 6, content:
80917fd0: 00 00 00 01 | ....

ISAKMP (0): processing notify INITIAL_CONTACTrip 0x80791f00
: chall_state ''
: state 0x7
: timer 0x0
: info 0x5d5ba513
session_id 0x5d5ba513
request_id 0x2
user 'testuser'
app 0
reason 2
sip 10.66.79.244
type 1
rad_procpkt: ACCEPT
attribute:
type 8, length 6, content:
809186f0: ff ff | ..
80918700: ff ff | ..
RADIUS_RCVD
attribute:
type 26, length 67, content:
Vendor ID 0 0 0 9, type=1, len=61:
80918700: 41 43 53 3a 43 69 | ACS:Ci
80918710: 73 63 6f 53 65 63 75 72 65 2d 44 65 66 69 6e 65 
| scoSecure-Define
80918720: 64 2d 41 43 4c 3d 23 41 43 53 41 43 4c 23 2d 50 
| d-ACL=#ACSACL#-P
80918730: 49 58 2d 56 50 4e 43 6c 69 65 6e 74 2d 33 64 33 
| IX-VPNClient-3d3
80918740: 32 37 38 31 35 | 27815
RADIUS_RCVD
RADIUS_REQUEST
raidus.c: rad_mkpkt_authen
attribute:
type 1, length 33, content:
809186d0: 23 41 43 53 41 43 4c 23 2d 50 49 58 | #ACSACL#-PIX
809186e0: 2d 56 50 4e 43 6c 69 65 6e 74 2d 33 64 33 32 37 
| -VPNClient-3d327
809186f0: 38 31 35 | 815
attribute:
type 4, length 6, content:
809186f0: 0a 42 4f 45 | .BOE
attribute:
type 5, length 6, content:
80918700: 00 00 00 | ...
80918710: 02 | .
IPSEC(key_engine): got a queue event...rip 0x80791f00
: chall_state ''
: state 0x7
: timer 0x0
: info 0x5d5ba513
session_id 0x5d5ba513
request_id 0x3
user '#ACSACL#-PIX-VPNClient-3d327815'
app 0
reason 2
sip 10.66.79.244
type 1
rad_procpkt: ACCEPT
attribute:
type 26, length 46, content:
Vendor ID 0 0 0 9, type=1, len=40:
80918e20: 69 70 3a 69 6e 61 63 6c 23 31 3d 70 | ip:inacl#1=p
80918e30: 65 72 6d 69 74 20 69 70 20 61 6e 79 20 68 6f 73 
| ermit ip any hos
80918e40: 74 20 31 30 2e 31 2e 31 2e 32 | t 10.1.1.2
RADIUS_RCVD
RADIUS_RCVD
RADIUS_ACCESS_ACCEPT:normal termination
RADIUS_DELETE

IPSEC(key_engine_delete_sas): rec'd delete notify from ISAKMP
IPSEC(key_engine_delete_sas): delete all SAs shared with 10.66.79.229

ISAKMP (0): SA has been authenticated
return status is IKMP_NO_ERROR
ISAKMP (0): sending phase 1 RESPONDER_LIFETIME notify
ISAKMP (0): sending NOTIFY message 24576 protocol 1
ISAKMP/xauth: request attribute XAUTH_TYPE
ISAKMP/xauth: request attribute XAUTH_USER_NAME
ISAKMP/xauth: request attribute XAUTH_USER_PASSWORD
ISAKMP (0:0): initiating peer config to 10.66.79.229. 
ID = 3250273953 (0xc1bb3ea1)
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 10.66.79.229.
 message ID = 2167001532
ISAKMP: Config payload CFG_REPLY
return status is IKMP_ERR_NO_RETRANS
ISAKMP (0:0): initiating peer config to 10.66.79.229. 
ID = 1530000247 (0x5b31f377)
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 10.66.79.229. 
message ID = 2167001532
ISAKMP: Config payload CFG_ACK
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
ISAKMP_TRANSACTION exchange
ISAKMP (0:0): processing transaction payload from 10.66.79.229. 
message ID = 2167001532
ISAKMP: Config payload CFG_REQUEST
ISAKMP (0:0): checking request:
ISAKMP: attribute IP4_ADDRESS (1)
ISAKMP: attribute IP4_NETMASK (2)
ISAKMP: attribute IP4_DNS (3)
ISAKMP: attribute IP4_NBNS (4)
ISAKMP: attribute ADDRESS_EXPIRY (5)
Unsupported Attr: 5
ISAKMP: attribute APPLICATION_VERSION (7)
Unsupported Attr: 7
ISAKMP: attribute UNKNOWN (28672)
Unsupported Attr: 28672
ISAKMP: attribute UNKNOWN (28673)
Unsupported Attr: 28673
ISAKMP: attribute ALT_DEF_DOMAIN (28674)
ISAKMP: attribute ALT_SPLIT_INCLUDE (28676)
ISAKMP: attribute ALT_PFS (28679)
ISAKMP: attribute UNKNOWN (28680)
Unsupported Attr: 28680
ISAKMP: attribute UNKNOWN (28677)
Unsupported Attr: 28677
ISAKMP (0:0): responding to peer config from 10.66.79.229. 
ID = 2397668523
return status is IKMP_NO_ERROR
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_IDLE
ISAKMP (0): processing SA payload. message ID = 2858414843

ISAKMP : Checking IPSec proposal 1

ISAKMP: transform 1, ESP_3DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b 
IPSEC(validate_proposal): transform proposal 
(prot 3, trans 3, hmac_alg 1) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (1)
ISAKMP : Checking IPSec proposal 2

ISAKMP: transform 1, ESP_3DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b 
IPSEC(validate_proposal): transform proposal 
(prot 3, trans 3, hmac_alg 2) not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP (0): skipping next ANDed proposal (2)
ISAKMP : Checking IPSec proposal 3

ISAKMP: transform 1, ESP_3DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC
(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 1) 
not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 4

ISAKMP: transform 1, ESP_3DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-SHA
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b IPSEC
(validate_proposal): transform proposal (prot 3, trans 3, hmac_alg 2) 
not supported

ISAKMP (0): atts not acceptable. Next payload is 0
ISAKMP : Checking IPSec proposal 5

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
ISAKMP: authenticator is HMAC-MD5
ISAKMP: encaps is 1
ISAKMP: SA life type in seconds
ISAKMP: SA life duration (VPI) of 0x0 0x20 0xc4 0x9b 
ISAKMP (0): atts are acceptable.
ISAKMP (0): bad SPI size of 2 octets!
ISAKMP : Checking IPSec proposal 6

ISAKMP: transform 1, ESP_DES
ISAKMP: attributes in transform:
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
OAK_QM exchange
crypto_isakmp_process_block: src 10.66.79.229, dest 10.66.79.69
OAK_QM exchange
oakley_process_quick_mode:
OAK_QM_AUTH_AWAIT
ISAKMP (0): Creating IPSec SAs
sv2-4(config)# 
sv2-4(config)# 
sv2-4(config)# 
sv2-4(config)# 
sv2-4(config)#show uauth
Current Most Seen
Authenticated Users 1 1
Authen In Progress 0 1
ipsec user 'testuser' at 192.168.1.1, authenticated
access-list #ACSACL#-PIX-VPNClient-3d327815
sv2-4(config)#show access-list
access-list 108; 1 elements
access-list 108 permit ip 10.1.1.0 255.255.255.0 192.168.1.0 
255.255.255.0 (hitcnt=38) 
access-list #ACSACL#-PIX-VPNClient-3d327815; 1 elements
access-list #ACSACL#-PIX-VPNClient-3d327815 permit ip any host 
10.1.1.2 (hitcnt=15) 
access-list dynacl4; 1 elements
access-list dynacl4 permit ip host 10.66.79.69 
host 192.168.1.1 (hitcnt=0) 
access-list dynacl5; 1 elements
access-list dynacl5 permit ip any host 192.168.1.1 (hitcnt=15) 
sv2-4(config)#show access-list
access-list 108; 1 elements
access-list 108 permit ip 10.1.1.0 255.255.255.0 
192.168.1.0 255.255.255.0 (hitcnt=42) 
access-list #ACSACL#-PIX-VPNClient-3d327815; 1 elements
access-list #ACSACL#-PIX-VPNClient-3d327815 permit ip any 
host 10.1.1.2 (hitcnt=17) 
access-list dynacl4; 1 elements
access-list dynacl4 permit ip host 10.66.79.69 host 
192.168.1.1 (hitcnt=0) 
access-list dynacl5; 1 elements
access-list dynacl5 permit ip any host 192.168.1.1 (hitcnt=17)

 

sv2-4(config)#show crypto map

Crypto Map: "mymap" interfaces: { outside }
client configuration address respond
client authentication AuthInbound

Crypto Map "mymap" 10 ipsec-isakmp
Dynamic map template tag: dynmap

Crypto Map "mymap" 20 ipsec-isakmp
Peer = 10.66.79.229
access-list dynacl6; 1 elements
access-list dynacl6 permit ip host 10.66.79.69 
host 192.168.1.1 (hitcnt=0) 
dynamic (created from dynamic map dynmap/10)
Current peer: 10.66.79.229
Security association lifetime: 4608000 kilobytes/28800 seconds
PFS (Y/N): N
Transform sets={ myset, }

Crypto Map "mymap" 30 ipsec-isakmp
Peer = 10.66.79.229
access-list dynacl7; 1 elements
access-list dynacl7 permit ip any host 192.168.1.1 (hitcnt=0) 
dynamic (created from dynamic map dynmap/10)
Current peer: 10.66.79.229
Security association lifetime: 4608000 kilobytes/28800 seconds
PFS (Y/N): N
Transform sets={ myset, }
sv2-4(config)

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