Microsoft l2tp IPSec VPN site to site ASA on top

I have a specialized applications casino that requires end-to-end encryption. I'm under the stack of Microsoft IPSec l2tp between my XP machine and my Windows 2003 server on the LAN. Can I use the same type of protocol stack Microsoft l2tp IPSec between my XP machine and the Windows Server 2003 a branch on the SAA to site to site ASA VPN tunnel? The VPN site-to site ASA is a type of key Preshare IPSec VPN tunnelle traffic between our head office and a branch in distance.

In other words, the ASA site-to-site IPSec VPN will allow Microsoft l2tp through IPSec encrypted traffic? My ACL tunnel would allow full IP access between site. Something like:

name 192.168.100.0 TexasSubnet

name 192.168.200.0 RenoSubnet

IP TexasSubnet 255.255.255.0 RenoSubnet 255.255.255.0 allow Access-list extended nat_zero

Hello

Yes, the L2TP can be encapsulated in IPSEC as all other traffic.

However, make sure that no NAT is performed on each end. L2TP is a default header protection which will see NAT as a falsification of package and reject it.

See you soon,.

Daniel

Tags: Cisco Security

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    234278: * 3 Feb 18:53:38: crypto_engine: hash generate IKE
    234279: * 3 Feb 18:53:38: CryptoEngine0: CRYPTO_ISA_IKE_HMAC (hw) (ipsec)
    234280: * 3 Feb 18:53:38: ISAKMP: (5912): SA authentication status:
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    234282: * 3 Feb 18:53:38: ISAKMP: (5912): port detected floating port = 4500
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    234285: * 3 Feb 18:53:38: ISAKMP: (5912): entry = IKE_MESG_INTERNAL, IKE_PROCESS_MAIN_MODE
    234286: * 3 Feb 18:53:38: ISAKMP: (5912): former State = new State IKE_R_MM5 = IKE_R_MM5

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    234291: * 3 Feb 18:53:38: CryptoEngine0: CRYPTO_ISA_IKE_HMAC (hw) (ipsec)
    234292: * 3 Feb 18:53:38: crypto_engine: package to encrypt IKE
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    dropping existing phase 1 and 2 with 95.6 local... 93.73.161.229 remote remote port 4500
    234309: * 3 Feb 18:53:38: ISAKMP: (5912): node-893966165 error suppression FALSE reason 'informational (en) State 1.
    234310: * 3 Feb 18:53:38: ISAKMP: (5912): entry = IKE_MESG_FROM_PEER, IKE_INFO_NOTIFY
    234311: * 3 Feb 18:53:38: ISAKMP: (5912): former State = new State IKE_P1_COMPLETE = IKE_P1_COMPLETE

    234312: * 3 Feb 18:53:38: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)
    234313: * 3 Feb 18:53:39: % s-6-IPACCESSLOGRL: registration of limited or missed rates 150 packages of access list
    234314: * 3 Feb 18:53:39: ISAKMP (0:5912): received 93.73.161.229 packet dport 4500 4500 Global (R) QM_IDLE sport
    234315: * 3 Feb 18:53:39: ISAKMP: node set-1224389198 to QM_IDLE
    234316: * 3 Feb 18:53:39: crypto_engine: package to decipher IKE
    234317: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_DECRYPT (hw) (ipsec)
    234318: * 3 Feb 18:53:39: crypto_engine: hash generate IKE
    234319: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_HMAC (hw) (ipsec)
    234320: * 3 Feb 18:53:39: ISAKMP: (5912): HASH payload processing. Message ID =-1224389198
    234321: * 3 Feb 18:53:39: ISAKMP: (5912): treatment ITS payload. Message ID =-1224389198
    234322: * 3 Feb 18:53:39: ISAKMP: (5912): proposal of IPSec checking 1
    234323: * 3 Feb 18:53:39: ISAKMP: turn 1, ESP_3DES
    234324: * 3 Feb 18:53:39: ISAKMP: attributes of transformation:
    234325: * 3 Feb 18:53:39: ISAKMP: type of life in seconds
    234326: * 3 Feb 18:53:39: ISAKMP: life of HIS (basic) of 28800
    234327: * 3 Feb 18:53:39: ISAKMP: program is 61444 (Transport-UDP)
    234328: * 3 Feb 18:53:39: ISAKMP: authenticator is HMAC-SHA
    234329: * 3 Feb 18:53:39: CryptoEngine0: validate the proposal
    234330: * 3 Feb 18:53:39: ISAKMP: (5912): atts are acceptable.
    234331: * 3 Feb 18:53:39: IPSEC (validate_proposal_request): part #1 of the proposal
    (Eng. msg key.) Local INCOMING = 95.6..., distance = 93.73.161.229,.
    local_proxy = 95.6.../255.255.255.255/17/1701 (type = 1),
    remote_proxy = 93.73.161.229/255.255.255.255/17/0 (type = 1),
    Protocol = ESP, transform = esp-3des esp-sha-hmac (UDP Transport),
    lifedur = 0 and 0kb in
    SPI = 0 x 0 (0), id_conn = 0, keysize = 0, flags = 0 x 0
    234332: * 3 Feb 18:53:39: map_db_find_best found no corresponding card
    234333: * 3 Feb 18:53:39: ISAKMP: (5912): processing NONCE payload. Message ID =-1224389198
    234334: * 3 Feb 18:53:39: ISAKMP: (5912): payload ID for treatment. Message ID =-1224389198
    234335: * 3 Feb 18:53:39: ISAKMP: (5912): payload ID for treatment. Message ID =-1224389198
    234336: * 3 Feb 18:53:39: ISAKMP: (5912): ask 1 spis of ipsec
    234337: * 3 Feb 18:53:39: ISAKMP: (5912): entrance, node-1224389198 = IKE_MESG_FROM_PEER, IKE_QM_EXCH
    234338: * 3 Feb 18:53:39: ISAKMP: (5912): former State = new State IKE_QM_READY = IKE_QM_SPI_STARVE
    234339: * 3 Feb 18:53:39: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)
    234340: * 3 Feb 18:53:39: IPSEC (spi_response): spi getting 834762579 for SA
    of 95.6... to 93.73.161.229 for prot 3
    234341: * 3 Feb 18:53:39: crypto_engine: hash generate IKE
    234342: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_HMAC (hw) (ipsec)
    234343: * 3 Feb 18:53:39: crypto_engine: create Security Association IPSec (by QM)
    routerindc #.
    234344: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IPSEC_KEY_CREATE (hw) (ipsec)
    234345: * 3 Feb 18:53:39: crypto_engine: create Security Association IPSec (by QM)
    234346: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IPSEC_KEY_CREATE (hw) (ipsec)
    234347: * 3 Feb 18:53:39: ISAKMP: (5912): establishing IPSec security associations
    234348: * 3 Feb 18:53:39: from 93.73.161.229 to 95.6 SA... (f / i) 0 / 0
    (93.73.161.229 to 95.6 proxy...)
    234349: * 3 Feb 18:53:39: spi 0x31C17753 and id_conn a 0
    234350: * 3 Feb 18:53:39: life of 28800 seconds
    234351: * 3 Feb 18:53:39: ITS 95.6 outgoing... to 93.73.161.229 (f / i) 0/0
    (proxy 95.6... to 93.73.161.229)
    234352: * 3 Feb 18:53:39: spi 0x495A4BD and id_conn a 0
    234353: * 3 Feb 18:53:39: life of 28800 seconds
    234354: * 3 Feb 18:53:39: crypto_engine: package to encrypt IKE
    234355: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_ENCRYPT (hw) (ipsec)
    234356: * 3 Feb 18:53:39: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)
    234357: * 3 Feb 18:53:39: map_db_find_best found no corresponding card
    234358: * 3 Feb 18:53:39: IPSec: rate allocated for brother 80000273 Flow_switching
    234359: * 3 Feb 18:53:39: IPSEC (policy_db_add_ident): 95.6..., src dest 93.73.161.229, dest_port 4500

    234360: * 3 Feb 18:53:39: IPSEC (create_sa): its created.
    (his) sa_dest = 95.6..., sa_proto = 50.
    sa_spi = 0x31C17753 (834762579).
    sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 1165
    234361: * 3 Feb 18:53:39: IPSEC (create_sa): its created.
    (his) sa_dest = 93.73.161.229, sa_proto = 50,.
    sa_spi = 0x495A4BD (76915901).
    sa_trans = sa_conn_id of hmac-sha-esp, esp-3des = 1166
    234362: * 3 Feb 18:53:39: ISAKMP: (5912): lot of 93.73.161.229 sending peer_port my_port 4500 4500 (R) QM_IDLE
    234363: * 3 Feb 18:53:39: ISAKMP: (5912): entrance, node-1224389198 = IKE_MESG_FROM_IPSEC, IKE_SPI_REPLY
    234364: * 3 Feb 18:53:39: ISAKMP: (5912): former State = new State IKE_QM_SPI_STARVE = IKE_QM_R_QM2
    234365: * 3 Feb 18:53:39: ISAKMP (0:5912): received 93.73.161.229 packet dport 4500 4500 Global (R) QM_IDLE sport
    234366: * 3 Feb 18:53:39: crypto_engine: package to decipher IKE
    234367: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_DECRYPT (hw) (ipsec)
    234368: * 3 Feb 18:53:39: crypto_engine: hash generate IKE
    234369: * 3 Feb 18:53:39: CryptoEngine0: CRYPTO_ISA_IKE_HMAC (hw) (ipsec)
    routerindc #.
    234370: * 3 Feb 18:53:39: ISAKMP: (5912): node-1224389198 error suppression FALSE reason 'QM (wait).
    234371: * 3 Feb 18:53:39: ISAKMP: (5912): entrance, node-1224389198 = IKE_MESG_FROM_PEER, IKE_QM_EXCH
    234372: * 3 Feb 18:53:39: ISAKMP: (5912): former State = new State IKE_QM_R_QM2 = IKE_QM_PHASE2_COMPLETE
    234373: * 3 Feb 18:53:39: IPSEC (key_engine): had an event of the queue with 1 KMI message (s)
    234374: * 3 Feb 18:53:39: IPSEC (key_engine_enable_outbound): rec would notify of ISAKMP
    234375: * 3 Feb 18:53:39: IPSEC (key_engine_enable_outbound): select SA with spinnaker 76915901/50
    234376: * 3 Feb 18:53:40: IPSEC (epa_des_crypt): decrypted packet has no control of her identity
    routerindc #.
    234377: * 3 Feb 18:53:42: IPSEC (epa_des_crypt): decrypted packet has no control of her identity
    routerindc #.
    234378: * 3 Feb 18:53:44: IPSEC (epa_des_crypt): decrypted packet has no control of her identity

    Also when I connect with the phone, I see HIS Active and IPsec tunnel is mounted, but the wire of time tunnel is down and phone connects.

    I hope that you will help me. Thank you.

    Hi dvecherkin1,

    Who IOS you're running, you could hit the next default.

    https://Tools.Cisco.com/bugsearch/bug/CSCsg34166/?reffering_site=dumpcr

    It may be useful

    -Randy-

    Evaluate the ticket to help others find the answer quickly.

  • Private of IPSec VPN-private network between ASA and router

    Hello community,

    This is first time for me to configure IPSec VPN between ASA and router. I have an ASA 5540 at Headquarters and 877 router to EH Branch

    Headquarters ASA summary.

    Peer IP: 111.111.111.111

    Local network: 10.0.0.0

    Branch

    Peer IP: 123.123.123.123

    LAN: 192.168.1.0/24

    Please can someone help me set up the vpn.

    Hello

    This guide covers exactly what you need:

    Establishment of ASDM and SDM - http://www.netcraftsmen.net/resources/archived-articles/273.html

    Tunnel VPN - ASA to the router configuration:

    http://www.Cisco.com/en/us/products/ps5855/products_configuration_example09186a0080a9a7a3.shtml#ASDM

    Kind regards

    Jimmy

  • IPSEC VPN site to site on Transparent mode

    Hello

    The new version of the OS of the SAA does support IPSEC site-to-site VPN for partners on more Transparent?

    Thank you very much

    Kind regards

    J

    The transparent firewall supports for connections to management only site-to-site VPN tunnels. It doesn't end of VPN connections for traffic through the ASA. You can pass through the ASA VPN traffic using a more extended access list, but it fails to complete connections not frames. Clientless SSL VPN is also not supported.

  • Force start negotiating IPsec VPN Sit-to-site

    Hello

    I have attached two TXT files with the configurations of the two cisco 837 routers.

    The problem is that the ROUTER2 has dynamic IP, and to establish the tunnel must do a ping from the ethernet interface 0 ROUTER1.

    You can select the connection?

    Try it without source ethernet loop back 0 instead.

  • Problem with the VPN site to site for the two cisco asa 5505

    Starting with cisco asa. I wanted to do a vpn site-to site of cisco. I need help. I can't ping from site A to site B and vice versa.

    Cisco Config asa1

    interface Ethernet0/0
    switchport access vlan 1
    !
    interface Ethernet0/1
    switchport access vlan 2
    !
    interface Vlan1
    nameif outside
    security-level 0
    IP address 172.xxx.xx.4 255.255.240.0
    !
    interface Vlan2
    nameif inside
    security-level 100
    IP 192.168.60.2 255.255.255.0
    !
    passive FTP mode
    network of the Lan_Outside object
    192.168.60.0 subnet 255.255.255.0
    network of the NETWORK_OBJ_192.168.1.0_24 object
    subnet 192.168.1.0 255.255.255.0
    network of the NETWORK_OBJ_192.168.60.0_24 object
    192.168.60.0 subnet 255.255.255.0
    object-group Protocol DM_INLINE_PROTOCOL_1
    ip protocol object
    icmp protocol object
    object-group Protocol DM_INLINE_PROTOCOL_2
    ip protocol object
    icmp protocol object
    object-group Protocol DM_INLINE_PROTOCOL_3
    ip protocol object
    icmp protocol object
    Access extensive list ip 192.168.60.0 Outside_cryptomap allow 255.255.255.0 192.168.1.0 255.255.255.0
    Outside_cryptomap list extended access allow DM_INLINE_PROTOCOL_3 of object-group a
    Outside_access_in list extended access allow DM_INLINE_PROTOCOL_1 of object-group a
    Inside_access_in list extended access allow DM_INLINE_PROTOCOL_2 of object-group a
    network of the Lan_Outside object
    NAT (inside, outside) interface dynamic dns
    Access-group Outside_access_in in interface outside
    Inside_access_in access to the interface inside group
    Route outside 0.0.0.0 0.0.0.0 172.110.xx.1 1
    Timeout xlate 03:00
    Pat-xlate timeout 0:00:30
    Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
    Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
    Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
    Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
    timeout tcp-proxy-reassembly 0:01:00
    Floating conn timeout 0:00:00
    dynamic-access-policy-registration DfltAccessPolicy
    identity of the user by default-domain LOCAL
    AAA authentication http LOCAL console
    Enable http server
    http 192.168.60.0 255.255.255.0 inside
    http 96.xx.xx.222 255.255.255.255 outside
    No snmp server location
    No snmp Server contact
    Crypto ipsec transform-set ikev1 ESP-AES-128-SHA aes - esp esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-esp - aes esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-128-SHA-TRANS-aes - esp esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-128-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-TRANS-aes - esp esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-128-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-192-SHA-TRANS esp-aes-192 esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-192-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-192-MD5-TRANS esp-aes-192 esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-192-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-256-SHA-TRANS esp-aes-256 esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-256-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-256-MD5-TRANS esp-aes-256 esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-256-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 SHA-ESP-3DES esp-3des esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-3DES-MD5-esp-3des esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-3DES-SHA-TRANS esp-3des esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-3DES-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-3DES-MD5-TRANS esp-3des esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-3DES-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-DES-SHA esp - esp-sha-hmac
    Crypto ipsec transform-set ikev1 esp ESP-DES-MD5-esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-DES-SHA-TRANS esp - esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-DES-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-DES-MD5-TRANS esp - esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-DES-MD5-TRANS mode transit
    Crypto ipsec ikev2 ipsec-proposal OF
    encryption protocol esp
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 proposal ipsec 3DES
    Esp 3des encryption protocol
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 ipsec-proposal AES
    Esp aes encryption protocol
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 ipsec-proposal AES192
    Protocol esp encryption aes-192
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 AES256 ipsec-proposal
    Protocol esp encryption aes-256
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec pmtu aging infinite - the security association
    card crypto Outside_map 1 corresponds to the address Outside_cryptomap
    card crypto Outside_map 1 set peer 96.88.75.222
    card crypto Outside_map 1 set ikev1 transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5
    card crypto Outside_map 1 set ikev2 AES256 AES192 AES 3DES ipsec-proposal OF
    Outside_map interface card crypto outside
    trustpool crypto ca policy
    IKEv2 crypto policy 1
    aes-256 encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 10
    aes-192 encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 20
    aes encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 30
    3des encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 40
    the Encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    Crypto ikev2 allow outside
    Crypto ikev1 allow outside
    IKEv1 crypto policy 10
    authentication crack
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 20
    authentication rsa - sig
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 30
    preshared authentication
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 40
    authentication crack
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 50
    authentication rsa - sig
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 60
    preshared authentication
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 70
    authentication crack
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 80
    authentication rsa - sig
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 90
    preshared authentication
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 100
    authentication crack
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 110
    authentication rsa - sig
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 120
    preshared authentication
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 130
    authentication crack
    the Encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 140
    authentication rsa - sig
    the Encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 150
    preshared authentication
    the Encryption
    sha hash
    Group 2
    life 86400
    Telnet timeout 5
    SSH stricthostkeycheck
    SSH timeout 5
    SSH group dh-Group1-sha1 key exchange
    Console timeout 0
    inside access management

    dhcpd address 192.168.60.50 - 192.168.60.100 inside
    dhcpd allow inside
    !
    a basic threat threat detection
    Statistics-list of access threat detection
    no statistical threat detection tcp-interception
    WebVPN
    AnyConnect essentials
    internal GroupPolicy_96.xx.xx.222 group strategy
    attributes of Group Policy GroupPolicy_96.xx.xx.222
    VPN-tunnel-Protocol ikev1, ikev2
    username admin privilege 15 encrypted password f3UhLvUj1QsXsuK7
    tunnel-group 96.xx.xx.222 type ipsec-l2l
    tunnel-group 96.xx.xx.222 General-attributes
    Group - default policy - GroupPolicy_96.xx.xx.222
    96.XX.XX.222 group of tunnel ipsec-attributes
    IKEv1 pre-shared-key *.
    remote control-IKEv2 pre-shared-key authentication *.
    pre-shared-key authentication local IKEv2 *.
    !
    class-map inspection_default
    match default-inspection-traffic
    !
    !
    type of policy-card inspect dns preset_dns_map
    parameters
    maximum message length automatic of customer
    message-length maximum 512
    Policy-map global_policy
    class inspection_default
    inspect the preset_dns_map dns
    inspect the ftp
    inspect h323 h225
    inspect the h323 ras
    inspect the rsh
    inspect the rtsp
    inspect esmtp
    inspect sqlnet
    inspect the skinny
    inspect sunrpc
    inspect xdmcp
    inspect the sip
    inspect the netbios
    inspect the tftp
    Review the ip options
    inspect the icmp
    inspect the icmp error

    ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Cisco ASA 2 config

    interface Ethernet0/0
    switchport access vlan 1
    !
    interface Ethernet0/1
    switchport access vlan 2
    !
    interface Vlan1
    nameif outside
    security-level 0
    IP address 96.xx.xx.222 255.255.255.248
    !
    interface Vlan2
    nameif inside
    security-level 100
    IP 192.168.1.254 255.255.255.0
    !
    passive FTP mode
    permit same-security-traffic inter-interface
    permit same-security-traffic intra-interface
    network of the Lan_Outside object
    subnet 192.168.1.0 255.255.255.0
    network of the NETWORK_OBJ_192.168.60.0_24 object
    192.168.60.0 subnet 255.255.255.0
    network of the NETWORK_OBJ_192.168.1.0_24 object
    subnet 192.168.1.0 255.255.255.0
    object-group Protocol DM_INLINE_PROTOCOL_1
    ip protocol object
    icmp protocol object
    object-group Protocol DM_INLINE_PROTOCOL_2
    ip protocol object
    icmp protocol object
    object-group Protocol DM_INLINE_PROTOCOL_3
    ip protocol object
    icmp protocol object
    object-group Protocol DM_INLINE_PROTOCOL_4
    ip protocol object
    icmp protocol object
    Outside_cryptomap list extended access allow DM_INLINE_PROTOCOL_2 of object-group 192.168.1.0 255.255.255.0 192.168.60.0 255.255.255.0
    Outside_cryptomap list extended access allow DM_INLINE_PROTOCOL_3 of object-group a
    Outside_access_in list extended access allow DM_INLINE_PROTOCOL_1 of object-group a
    Inside_access_in list extended access allow DM_INLINE_PROTOCOL_4 of object-group a
    pager lines 24
    Enable logging
    asdm of logging of information
    Outside 1500 MTU
    Within 1500 MTU
    no failover
    ICMP unreachable rate-limit 1 burst-size 1
    don't allow no asdm history
    ARP timeout 14400
    no permit-nonconnected arp
    NAT (inside, outside) static source NETWORK_OBJ_192.168.1.0_24 NETWORK_OBJ_192.168.1.0_24 NETWORK_OBJ_192.168.60.0_24 NETWORK_OBJ_192.168.60.0_24 non-proxy-arp-search of route static destination
    !
    network of the Lan_Outside object
    dynamic NAT (all, outside) interface
    Access-group Outside_access_in in interface outside
    Inside_access_in access to the interface inside group
    Route outside 0.0.0.0 0.0.0.0 96.xx.xx.217 1
    Timeout xlate 03:00
    Pat-xlate timeout 0:00:30
    Timeout conn 01:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
    Sunrpc timeout 0:10:00 h323 0:05:00 h225 mgcp from 01:00 0:05:00 mgcp-pat 0:05:00
    Sip timeout 0:30:00 sip_media 0:02:00 prompt Protocol sip-0: 03:00 sip - disconnect 0:02:00
    Timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
    timeout tcp-proxy-reassembly 0:01:00
    Floating conn timeout 0:00:00
    dynamic-access-policy-registration DfltAccessPolicy
    identity of the user by default-domain LOCAL
    AAA authentication http LOCAL console
    Enable http server
    http 192.168.1.0 255.255.255.0 inside
    http 172.xxx.xx.4 255.255.255.255 outside
    No snmp server location
    No snmp Server contact
    Crypto ipsec transform-set ikev1 ESP-AES-128-SHA aes - esp esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-esp - aes esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-192-SHA esp-aes-192 esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-256-SHA esp-aes-256 esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-AES-128-SHA-TRANS-aes - esp esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-128-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-128-MD5-TRANS-aes - esp esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-128-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-192-SHA-TRANS esp-aes-192 esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-192-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-192-MD5-TRANS esp-aes-192 esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-192-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-256-SHA-TRANS esp-aes-256 esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-256-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-AES-256-MD5-TRANS esp-aes-256 esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-AES-256-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 SHA-ESP-3DES esp-3des esp-sha-hmac
    Crypto ipsec transform-set ikev1 ESP-3DES-MD5-esp-3des esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-3DES-SHA-TRANS esp-3des esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-3DES-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-3DES-MD5-TRANS esp-3des esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-3DES-MD5-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-DES-SHA esp - esp-sha-hmac
    Crypto ipsec transform-set ikev1 esp ESP-DES-MD5-esp-md5-hmac
    Crypto ipsec transform-set ikev1 ESP-DES-SHA-TRANS esp - esp-sha-hmac
    Crypto ipsec ikev1 transform-set ESP-DES-SHA-TRANS mode transit
    Crypto ipsec transform-set ikev1 ESP-DES-MD5-TRANS esp - esp-md5-hmac
    Crypto ipsec ikev1 transform-set ESP-DES-MD5-TRANS mode transit
    Crypto ipsec ikev2 ipsec-proposal OF
    encryption protocol esp
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 proposal ipsec 3DES
    Esp 3des encryption protocol
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 ipsec-proposal AES
    Esp aes encryption protocol
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 ipsec-proposal AES192
    Protocol esp encryption aes-192
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec ikev2 AES256 ipsec-proposal
    Protocol esp encryption aes-256
    Esp integrity sha - 1, md5 Protocol
    Crypto ipsec pmtu aging infinite - the security association
    card crypto Outside_map 1 corresponds to the address Outside_cryptomap
    card crypto Outside_map 1 set peer 172.110.74.4
    card crypto Outside_map 1 set ikev1 transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA MD5-ESP-3DES ESP-DES-SHA ESP-DES-MD5
    card crypto Outside_map 1 set ikev2 AES256 AES192 AES 3DES ipsec-proposal OF
    Outside_map interface card crypto outside
    trustpool crypto ca policy
    IKEv2 crypto policy 1
    aes-256 encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 10
    aes-192 encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 20
    aes encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 30
    3des encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    IKEv2 crypto policy 40
    the Encryption
    integrity sha
    Group 2 of 5
    FRP sha
    second life 86400
    Crypto ikev2 allow outside
    Crypto ikev1 allow outside
    IKEv1 crypto policy 10
    authentication crack
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 20
    authentication rsa - sig
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 30
    preshared authentication
    aes-256 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 40
    authentication crack
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 50
    authentication rsa - sig
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 60
    preshared authentication
    aes-192 encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 70
    authentication crack
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 80
    authentication rsa - sig
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 90
    preshared authentication
    aes encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 100
    authentication crack
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 110
    authentication rsa - sig
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 120
    preshared authentication
    3des encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 130
    authentication crack
    the Encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 140
    authentication rsa - sig
    the Encryption
    sha hash
    Group 2
    life 86400
    IKEv1 crypto policy 150
    preshared authentication
    the Encryption
    sha hash
    Group 2
    life 86400
    Telnet timeout 5
    SSH stricthostkeycheck
    SSH timeout 5
    SSH group dh-Group1-sha1 key exchange
    Console timeout 0

    dhcpd address 192.168.1.50 - 192.168.1.100 inside
    dhcpd allow inside
    !
    a basic threat threat detection
    Statistics-list of access threat detection
    no statistical threat detection tcp-interception
    WebVPN
    AnyConnect essentials
    internal GroupPolicy_172.xxx.xx.4 group strategy
    attributes of Group Policy GroupPolicy_172.xxx.xx.4
    L2TP ipsec VPN-tunnel-Protocol ikev1, ikev2
    username admin privilege 15 encrypted password f3UhLvUj1QsXsuK7
    tunnel-group 172.xxx.xx.4 type ipsec-l2l
    tunnel-group 172.xxx.xx.4 General-attributes
    Group - default policy - GroupPolicy_172.xxx.xx.4
    172.xxx.XX.4 group of tunnel ipsec-attributes
    IKEv1 pre-shared-key *.
    remote control-IKEv2 pre-shared-key authentication *.
    pre-shared-key authentication local IKEv2 *.
    !
    class-map inspection_default
    match default-inspection-traffic
    !
    !
    type of policy-card inspect dns preset_dns_map
    parameters
    maximum message length automatic of customer
    message-length maximum 512
    Policy-map global_policy
    class inspection_default
    inspect the preset_dns_map dns
    inspect the ftp
    inspect h323 h225
    inspect the h323 ras
    inspect the rsh
    inspect the rtsp
    inspect esmtp
    inspect sqlnet
    inspect the skinny
    inspect sunrpc
    inspect xdmcp
    inspect the sip
    inspect the netbios
    inspect the tftp
    Review the ip options
    inspect the icmp
    inspect the icmp error
    inspect the http

    For IKEv2 configuration: (example config, you can change to encryption, group,...)

    -You must add the declaration of exemption nat (see previous answer).

    -set your encryption domain ACLs:

    access-list-TRAFFIC IPSEC allowed extended LOCAL REMOTE - LAN LAN ip

    -Set the Phase 1:

    Crypto ikev2 allow outside
    IKEv2 crypto policy 10
    3des encryption
    the sha md5 integrity
    Group 5
    FRP sha
    second life 86400

    -Set the Phase 2:

    Crypto ipsec ikev2 ipsec IKEV2-PROPOSAL
    Esp aes encryption protocol
    Esp integrity sha-1 protocol

    -set the Group of tunnel

    tunnel-group REMOTE-PUBLIC-IP type ipsec-l2l
    REMOTE-PUBLIC-IP tunnel-group ipsec-attributes
    IKEv2 authentication remote pre-shared-key cisco123


    IKEv2 authentication local pre-shared-key cisco123

    -Define the encryption card

    address for correspondence CRYPTOMAP 10 - TRAFFIC IPSEC crypto map
    card crypto CRYPTOMAP 10 peer set REMOTE-PUBLIC-IP
    card crypto CRYPTOMAP 10 set ipsec ikev2-IKEV2-PROPOSAL
    CRYPTOMAP interface card crypto outside
    crypto isakmp identity address

    On your config, you have all these commands but on your VPN config, you mix ikev1 and ikev2. You have also defined political different ikev2. Just do a bit of cleaning and reached agreement on a 1 strategy for the two site (encryption, hash,...)

    Thank you

  • ASA 9.2 IPSEC VPN

    I have ASA version 9.2 (2) 4 - model 5515

    I need to configure IPSEC VPN site-to-site.

    Can anyone share with me the example of ASA 9.2 CLI for IPSEC VPN configuration?

    Congratulations to find a solution to your problem. Thank you for posting on the Board to indicate that the issue is resolved and to share the solution. This can help other readers in the forum.

    HTH

    Rick

  • Make the remote web server accessible via VPN Site to website

    We have two test sites that are connected by a tunnel IPSEC VPN site-to-site (hosted on a SAA each site) over the Internet. We are trying to set up an environment to test two web applications running side by side. Two web servers are running on the Site of Test 1. We don't have the same public IP available at each site.

    To address the public site 1 unique IP address restriction, we try to install ACL and NAT rules to have 2 Site accept traffic from the internet and send it on the site to the other tunnel. So 1 Web server would accept the ASA 1 internet traffic and Web Server 2 accept traffic from ASA 2 to the other site. Here's a network diagram:

    We have difficulties to get this configuration works correctly. Please note that the network 192.168.3.0/24 clients are able to access the servers Web1 and Web2. This question seems to be due to our NAT configuration. This is the type of error, we see on the two firewalls:

    Asymmetrical NAT rules matched for flows forward and backward; Connection for tcp src outside:4.4.4.4/443 dst outside:192.168.1.10/443 refused due to path failure reverse that of NAT

    Our situation seems similar to this post: https://supportforums.cisco.com/thread/2242230

    Any help would be appreciated.

    Hello

    What Karsten said above is true. While it is possible and works, it also means that the configuration is a little more complex to manage. I have done no such features in a real-life network environment and have always used additional public IP addresses on the local site when a server is hosted.

    If you want to continue to move forward with this so here's a few points to consider and the configurations that you need.

    First off it seems to me that the other server will be organized by the local Site 1 so a simple static PAT (Port Forward) must manage the Site 1.

    network of the WEB-HTTP object

    host 192.168.1.10

    NAT (inside, outside) interface static tcp 443 443 service

    And if you need TCP/80 also then you will need

    network of the HTTPS WEB object

    host 192.168.1.10

    NAT (inside, outside) interface static service tcp 80 80

    Now, 2 Site will naturally a little different that the server is hosted on the Site 1 and Site 2 is the public IP address used to publish the server on the external network.

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    service object WWW

    destination eq 80 tcp service

    service object HTTPS

    destination eq 443 tcp service

    the object SOURCE-PAT-IP network

    host 192.168.3.254

    network of the WEB-SERVER-2-SITE1 object

    host 192.168.1.11

    NAT (outside, outside) 1 dynamic source no matter what static SOURCE-PAT-IP destination interface WEB-SERVER-2-SITE1 service WWW WWW

    NAT (outdoors, outdoor), 2 dynamic source no matter what static SOURCE-PAT-IP destination interface WEB-SERVER-2-SITE1 service HTTPS HTTPS

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    Make sure that the IP address chosen (in this case 192.168.3.254) is not used on any device. If she is then replace it with something that is not currently used in the network. Otherwise, configure an IP address of some other subnet and include in the L2L VPN configurations on both sites.

    Unless you already have it, you also have this configuration command to activate the traffic to make a U-turn/pin on the ' outside ' of the Site 2 ASA interface

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    Hope this helps

    Remember to mark a reply as the answer if it answered your question.

    Feel free to ask more if necessary.

    -Jouni

  • L2l IPSec VPN blocks SQL (ASA v8.4)

    Good evening everyone,

    I have an ASA 5510 8.4 (2) which has an IPSec VPN site to a 3rd party who run a form any checkpoint running.  VPN establishes and allows to access a server in our demilitarized zone on all the ports that we tested (so far HTTP, FTP, SSL, RDP), with the exception of SQL that does not even reach the server.  I've got Wireshark running on the DMZ server and if the 3rd party initiates a conversation of TCP of their server on any of the ports on the server I see all desired packages come with the correct IPs ETC (without NAT takes place through the VPN), but when an ODBC client attempts to query the SQL Server on our DMZ zone packets do not reach the level of the server.  What I see is the number of bytes of RX on the VPN increases whenever the query is run, but certainly not arriving on the SQL Server.

    Also if I come back to the ASA to the old PIX, it replaced with the same VPN configuration but on version 7.x, then it works fine.

    While I find some time to clean up the config this weekend, I have ideas.

    Thank you very much

    Simon.

    Hi Simon,.

    If you look at the options sys in the ASDM he advises that you still need ACL for traffic. As I understand it, in the old days, when you were in as you pointed out. If you set the ports in this group then Yes, it's a whole and potentially your only protection is the NAT or his absence.

    I would like to add an another ACE to the external interface, which allows the source to you DMZ host (see below)

    Object-group service GROUP SQL-tcp PORTS

    EQ port 1433 object

    EQ object Port 1434

    Port-object eq 1521

    outside_access extended access list permit tcp host 192.168.100.30 DMZ_158-group of objects SQL-PORTS object

    Concerning

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    I tried to configure an ASA5505 with a l2tp/ipsec vpn which I can connect to with Windows Vista vpn client. I had connection problems. When I try to connect, watch windows vpn client tell an error message "error 789: the L2TP connection attempt failed because the security layer detected a processing error during initial negotiations with the remote computer." The newspaper on the SAA is errors saying "Phase 1 failure: incompatibility of the types of attributes of class Group Description: RRs would be: unknown Cfg was: Group 2.

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    AFAIK the L2TP/IPSec is only available for android devices routed.

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    I found here a beautiful Android L2TP/IPSec VPN HowTo
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  • ASA Cisco IPSEC VPN tunnel has not managed the traffic

    Hi guys

    I am trying to set up a new connection IPSEC VPN between a Cisco ASA 5520 (verion 8.4 (4)) and Checkpoint Firewall. I managed to establish the phases IKE and IPSEC and I can see the tunnel is UP. But I can't see any traffic through the tunnel. I checked the cryptomap both ends and try to test with a contionuous ping from within the network of the SAA.

    I made a screenshot of ICMP packets but cannot see in ASA. I welcomed the icmp inside ASA interface.

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    Thank you

    You probably need to add nat negate statements:-something like.

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    object-group network OBJ / remote
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