I have to use PFS on ASA VPN?

Hello

I've been setting up some VPN clients on my Cisco ASA, some use the PFS option and others do not.

What is the point?

In the first package of quick mode, the initiator sends the identity information, proposal of the Association of security IPSec, Nonce payload and payload the key exchange (KE) optional in the case of Perfect Forward secret (PFS) is used

Perfect forward secret (PFS) is a cryptographic technique where newly created keys are unrelated to a key generated previously. With PFS enabled, Cisco ASA security generates a new set of keys that is used when negotiating IPSec Phase 2. Without PFS, the Cisco ASA uses keys of Phase 1 during the negotiations of Phase 2. The Cisco ASA uses Diffie-Hellman Group 1, 2, 5 and 7 for PFS to generate the keys. Diffie-Hellman Group 1 uses the size of 768-bit module to generate the keys, while group 2 uses 1024 bits and group 5 uses a size of 1536-bit module. Group 7, where the field size curve elliptical 163 bits, is designed for faster calculation of the keys usually used by the Group 5 Pocket PC is the safest technique but more general treatment. The syntax for setting up PFS is

card crypto-name of the seq - num map set pfs {group1: group2 | group5 | work.7}

This is the optional command

If useful rates

Tags: Cisco Security

Similar Questions

  • ASA VPN with Fortgate

    Hello people!

    I still have the problem with VPN... Laughing out loud

    I have to create a new VPN site to site between ASA 5510 (8.42 IOS) and Fortgate, but something is very strange, Don t VPN came and I see in the debug crypto 10 ikev1 the newspaper to follow:

    [IKEv1] phase 1 default: incompatibility of types of attributes of class Gr OUP Description: RRs would be: Cfg 1 group would be: Group 2

    But if I ask the other peer to change in Group 2, the msg in the SAA is:

    [IKEv1] phase 1 default: incompatibility of types of attributes of class Gr OUP Description: RRs would be: Group 2 GCF: Group 1

    Fortgate is possible to activate the two specific groups of VPN 1 and 2, and I would ask the other peer left this way and the ASA show:

    [IKEv1] phase 1 default: incompatibility of types of attributes of class Gr OUP Description: RRs would be: Group 2 GCF: Group 1
    [IKEv1] phase 1 default: incompatibility of types of attributes of class Gr OUP Description: RRs would be: Cfg 1 group would be: Group 2

    The show isakmp his:

    9 counterpart IKE: 179.124.32.181
    Type: user role: answering machine
    Generate a new key: no State: MM_WAIT_MSG3

    I have delete and creat VPN 3 x and the same error occurs.

    Everyone has seen this kind of problem?

    Is it using Fortigate version 5 by chance?

    I saw Cisco ASA VPN problems repeatedly with this code Fortigate, but above all it has been a problem of Phase 2 and defining KB life maximally on the side of the ASA has solved it... However this seems not to be your problem here.

    The first thing in your config I see you have PFS enabled - have you insured it is located on the side of Fortinet or tried to turn it off on the side of Cisco to see if it happens?

    Be stuck at MM_WAIT_MSG3 means that you sent your return policy, but then you have not received the third package in the ISAKMP riding so either the Fortigate is unhappy with something or there's a routing problem (however unlikely given that you have already had communication)

    Try on the side of the ASA:

    debug crypto isakmp 7
    You can also confrm your external interface is 'outside1 '? You can see this "see intellectual property."
  • ASA: VPN IPSEC Tunnel from 5505(ver=8.47) to 5512 (ver = 9.23)

    Hi-

    We have connected tunnel / VPN configuration between an ASA 5505 - worm = 8.4 (7) and 5512 - worm = 9.2 (3).
    We can only ping in a sense - 5505 to the 5512, but not of vice-versa(5512 to 5505).

    Networks:

    Local: 192.168.1.0 (answering machine)
    Distance: 192.168.54.0 (initiator)

    See details below on our config:

    SH run card cry

    card crypto outside_map 2 match address outside_cryptomap_ibfw
    card crypto outside_map 2 pfs set group5
    outside_map 2 peer XX crypto card game. XX.XXX.XXX
    card crypto outside_map 2 set transform-set ESP-AES-256-SHA ikev1
    crypto map outside_map 2 set ikev2 AES256 ipsec-proposal

    outside_map interface card crypto outside

    Note:
    Getting to hit numbers below on rules/ACL...

    SH-access list. I have 54.0

    permit for access list 6 outside_access_out line scope ip 192.168.1.0 255.255.255.0 192.168.54.0 255.255.255.0 (hitcnt = 15931) 0x01aecbcc
    permit for access list 1 outside_cryptomap_ibfw line extended ip object NETWORK_OBJ_192.168.1.0_24 object NETWORK_OBJ_192.168.54.0_24 (hitcnt = 3) 0xa75f0671
    access-list 1 permit line outside_cryptomap_ibfw extended ip 192.168.1.0 255.255.255.0 192.168.54.0 255.255.255.0 (hitcnt = 3) 0xa75f0671

    SH run | I have access-group
    Access-group outside_access_out outside interface

    NOTE:
    WE have another working on the 5512 - VPN tunnel we use IKE peer #2 below (in BOLD)...

    HS cry his ikev1

    IKEv1 SAs:

    HIS active: 2
    Generate a new key SA: 0 (a tunnel report Active 1 and 1 to generate a new key during the generate a new key)
    Total SA IKE: 2

    1 peer IKE: XX. XX.XXX.XXX
    Type: L2L role: answering machine
    Generate a new key: no State: MM_ACTIVE
    2 IKE peers: XXX.XXX.XXX.XXX
    Type: L2L role: answering machine
    Generate a new key: no State: MM_ACTIVE

    SH run tunnel-group XX. XX.XXX.XXX
    tunnel-group XX. XX.XXX.XXX type ipsec-l2l
    tunnel-group XX. XX.XXX.XXX General-attributes
    Group - default policy - GroupPolicy_XX.XXX.XXX.XXX
    tunnel-group XX. XX.XXX.XXX ipsec-attributes
    IKEv1 pre-shared-key *.
    remote control-IKEv2 pre-shared-key authentication *.

    SH run | I have political ikev1

    ikev1 160 crypto policy
    preshared authentication
    aes-256 encryption
    Group 5
    life 86400

    SH run | I Dynamics
    NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)
    NAT source auto after (indoor, outdoor) dynamic one interface

    NOTE:
    To from 5512 at 5505-, we can ping a host on the remote network of ASA local

    # ping inside the 192.168.54.20
    Type to abort escape sequence.
    Send 5, echoes ICMP 100 bytes to 192.168.54.20, wait time is 2 seconds:
    !!!!!
    Success rate is 100 per cent (5/5), round-trip min/avg/max = 30/32/40 ms

    Determination of 192.168.1.79 - local host route to 192.168.54.20 - remote host - derivation tunnel?

    The IPSEC tunnel check - seems OK?

    SH crypto ipsec his
    Interface: outside
    Tag crypto map: outside_map, seq num: 2, local addr: XX.XXX.XXX.XXX

    outside_cryptomap_ibfw to access ip 192.168.1.0 scope list allow 255.255.255.0 192.168.54.0 255.255.255.0
    local ident (addr, mask, prot, port): (192.168.1.0/255.255.255.0/0/0)
    Remote ident (addr, mask, prot, port): (192.168.54.0/255.255.255.0/0/0)
    current_peer: XX. XX.XXX.XXX

    #pkts program: 4609, #pkts encrypt: 4609, #pkts digest: 4609
    #pkts decaps: 3851, #pkts decrypt: 3851, #pkts check: 3851
    compressed #pkts: 0, unzipped #pkts: 0
    #pkts uncompressed: 4609, model of #pkts failed: 0, #pkts Dang failed: 0
    success #frag before: 0, failures before #frag: 0, #fragments created: 0
    Sent #PMTUs: 0, #PMTUs rcvd: 0, reassembly: 20th century / of frgs #decapsulated: 0
    #TFC rcvd: 0, #TFC sent: 0
    #Valid errors ICMP rcvd: 0, #Invalid ICMP errors received: 0
    #send errors: 0, #recv errors: 0

    local crypto endpt. : XX.XXX.XXX.XXX/0, remote Start crypto. : XX. XX.XXX.XXX/0
    Path mtu 1500, ipsec 74 (44) generals, media, mtu 1500
    PMTU time remaining: 0, political of DF: copy / df
    Validation of ICMP error: disabled, TFC packets: disabled
    current outbound SPI: CDC99C9F
    current inbound SPI: 06821CBB

    SAS of the esp on arrival:
    SPI: 0x06821CBB (109190331)
    transform: aes-256-esp esp-sha-hmac no compression
    running parameters = {L2L, Tunnel, group 5 PFS, IKEv1}
    slot: 0, id_conn: 339968, crypto-card: outside_map
    calendar of his: service life remaining (KB/s) key: (3914789/25743)
    Size IV: 16 bytes
    support for replay detection: Y
    Anti-replay bitmap:
    0xFFFFFFFF to 0xFFFFFFFF
    outgoing esp sas:
    SPI: 0xCDC99C9F (3452542111)
    transform: aes-256-esp esp-sha-hmac no compression
    running parameters = {L2L, Tunnel, group 5 PFS, IKEv1}
    slot: 0, id_conn: 339968, crypto-card: outside_map
    calendar of his: service life remaining (KB/s) key: (3913553/25743)
    Size IV: 16 bytes
    support for replay detection: Y
    Anti-replay bitmap:
    0x00000000 0x00000001

    --> The local ASA 5512 - where we have questions - tried Packet Tracer... seems we receive requests/responses...

    SH cap CAP

    34 packets captured

    1: 16:41:08.120477 192.168.1.79 > 192.168.54.20: icmp: echo request
    2: 16:41:08.278138 192.168.54.20 > 192.168.1.79: icmp: echo request
    3: 16:41:08.278427 192.168.1.79 > 192.168.54.20: icmp: echo reply
    4: 16:41:09.291992 192.168.54.20 > 192.168.1.79: icmp: echo request
    5: 16:41:09.292282 192.168.1.79 > 192.168.54.20: icmp: echo reply

    --> On the ASA 5505 distance - we can ping through the 5512 to the local host (192.168.1.79)

    SH cap A2

    42 packets captured

    1: 16:56:16.136559 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
    2: 16:56:16.168860 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
    3: 16:56:17.140434 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
    4: 16:56:17.171652 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
    5: 16:56:18.154426 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request
    6: 16:56:18.186178 802. 1 q vlan P0 192.168.1.79 #1 > 192.168.54.20: icmp: echo reply
    7: 16:56:19.168417 802. 1 q vlan P0 192.168.54.20 #1 > 192.168.1.79: icmp: echo request

    --> Package trace on 5512 does no problem... but we cannot ping from host to host?

    entry Packet-trace within the icmp 192.168.1.79 8 0 detailed 192.168.54.20

    Phase: 4
    Type: CONN-SETTINGS
    Subtype:
    Result: ALLOW
    Config:
    class-map default class
    match any
    Policy-map global_policy
    class class by default
    Decrement-ttl connection set
    global service-policy global_policy
    Additional information:
    Direct flow from returns search rule:
    ID = 0x7fffa2d0ba90, priority = 7, area = conn-set, deny = false
    hits = 4417526, user_data = 0x7fffa2d09040, cs_id = 0 x 0, use_real_addr, flags = 0 x 0 = 0 protocol
    IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
    IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
    input_ifc = output_ifc = any to inside,

    Phase: 5
    Type: NAT
    Subtype:
    Result: ALLOW
    Config:
    NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)
    Additional information:
    Definition of dynamic 192.168.1.79/0 to XX.XXX.XXX.XXX/43904
    Direct flow from returns search rule:
    ID = 0x7fffa222d130, priority = 6, area = nat, deny = false
    hits = 4341877, user_data = 0x7fffa222b970, cs_id = 0 x 0, flags = 0 x 0 = 0 protocol
    IP/ID=0.0.0.0 SRC, mask = 0.0.0.0, port = 0, = 0 tag
    IP/ID=0.0.0.0 DST, mask is 0.0.0.0, port = 0, tag = 0, dscp = 0 x 0
    input_ifc = inside, outside = output_ifc

    ...

    Phase: 14
    Type: CREATING STREAMS
    Subtype:
    Result: ALLOW
    Config:
    Additional information:
    New workflow created with the 7422689 id, package sent to the next module
    Information module for forward flow...
    snp_fp_tracer_drop
    snp_fp_inspect_ip_options
    snp_fp_inspect_icmp
    snp_fp_translate
    snp_fp_adjacency
    snp_fp_fragment
    snp_ifc_stat

    Information for reverse flow...
    snp_fp_tracer_drop
    snp_fp_inspect_ip_options
    snp_fp_translate
    snp_fp_inspect_icmp
    snp_fp_adjacency
    snp_fp_fragment
    snp_ifc_stat

    Result:
    input interface: inside
    entry status: to the top
    entry-line-status: to the top
    output interface: outside
    the status of the output: to the top
    output-line-status: to the top
    Action: allow

    --> On remote ASA 5505 - Packet track is good and we can ping remote host very well... dunno why he "of Nations United-NAT?

    Destination - initiator:
     
    entry Packet-trace within the icmp 192.168.54.20 8 0 detailed 192.168.1.79
     
    ...
    Phase: 4
    Type: UN - NAT
    Subtype: static
    Result: ALLOW
    Config:
    NAT (inside, outside) static source NETWORK_OBJ_192.168.54.0_24 NETWORK_OBJ_192.168.54.0_24 NETWORK_OBJ_192.168.1.0_24 NETWORK_OBJ_192.168.1.0_24 non-proxy-arp-search of route static destination
    Additional information:
    NAT divert on exit to the outside interface
    Untranslate 192.168.1.79/0 to 192.168.1.79/0
    ...

    Summary:
    We "don't" ping from a host (192,168.1.79) on 5512 - within the network of the 5505 - inside the network host (192.168.54.20).
    But we can ping the 5505 - inside the network host (192.168.54.20) 5512 - inside the network host (192.168.1.79).

    Please let us know what other details we can provide to help solve, thanks for any help in advance.

    -SP

    Well, I think it is a NAT ordering the issue.

    Basically as static and this NAT rule-

    NAT interface dynamic obj - 0.0.0.0 source (indoor, outdoor)

    are both in article 1 and in this article, it is done on the order of the rules so it does match the dynamic NAT rule rather than static because that seems to be higher in the order.

    To check just run a 'sh nat"and this will show you what order everthing is in.

    The ASA is working its way through the sections.

    You also have this-

    NAT source auto after (indoor, outdoor) dynamic one interface

    which does the same thing as first statement but is in section 3, it is never used.

    If you do one of two things-

    (1) configure the static NAT statement is above the dynamic NAT in section 1 that is to say. You can specify the command line

    or

    (2) remove the dynamic NAT of section 1 and then your ASA will use the entry in section 3.

    There is a very good document on this site for NAT and it is recommended to use section 3 for your general purpose NAT dynamic due precisely these questions.

    It is interesting on your ASA 5505 you duplicated your instructions of dynamic NAT again but this time with article 2 and the instructions in section 3 that is why your static NAT works because he's put in correspondence before all your dynamic rules.

    The only thing I'm not sure of is you remove the dynamic NAT statement in article 1 and rely on the statement in section 3, if she tears the current connections (sorry can't remember).

    Then you can simply try to rearrange so your static NAT is above it just to see if it works.

    Just in case you want to see the document here is the link-

    https://supportforums.Cisco.com/document/132066/ASA-NAT-83-NAT-operation-and-configuration-format-CLI

    Jon

  • Only way ASA Vpn access

    Hello:

    I have configured ASA 5505 to acept Cisco VPN Clients on IP-SEC and access internal subnet of tuneling (added a rule exempt NAT too) and the VPN Clients can connect and work without problems.

    But no internal network or the ASA I can ping or conect to the VPN Clients.

    My configuration:

    Internal network: 172.26.1.0 255.255.255.0

    The VPN Clients network 172.26.2.0 255.255.255.0

    Can you help me?

    Here is my configuration:

    : Saved : ASA Version 7.2(4) ! hostname ciscoasa domain-name ftf.es enable password xxxxxxx encrypted passwd xxxxx encrypted names name 217.125.44.23 IP_publica name 172.26.1.100 Servidor name 192.168.1.3 IP_externa name 192.168.2.3 IP_Externa2 name 172.26.2.0 VPN_Clients ! interface Vlan1 nameif inside security-level 100 ip address 172.26.1.89 255.255.255.0 ! interface Vlan2 nameif outside security-level 0 ip address IP_externa 255.255.255.0 ! interface Ethernet0/0 switchport access vlan 2 ! interface Ethernet0/1 ! interface Ethernet0/2 switchport access vlan 12 ! interface Ethernet0/3 ! interface Ethernet0/4 ! interface Ethernet0/5 switchport access vlan 13 ! interface Ethernet0/6 ! interface Ethernet0/7 ! ftp mode passive dns server-group DefaultDNS domain-name ftf.es same-security-traffic permit inter-interface same-security-traffic permit intra-interface object-group service terminal-server tcp port-object eq 3389 object-group protocol TCPUDP protocol-object udp protocol-object tcp access-list FTFVPN_splitTunnelAcl standard permit 172.26.1.0 255.255.255.0 access-list FTFVPN_Group_splitTunnelAcl standard permit 172.26.1.0 255.255.255.0 access-list outside_access_in extended permit tcp any host IP_externa eq 3389 access-list outside_access_in extended permit object-group TCPUDP any host IP_externa eq www access-list FTF_ADSL2_splitTunnelAcl standard permit any access-list inside_nat0_outbound extended permit ip 172.26.1.0 255.255.255.0 VPN_Clients 255.255.255.0 access-list inside_nat0_outbound extended permit ip 172.26.1.0 255.255.255.0 host 172.26.1.199 access-list outside_nat0_outbound extended permit ip VPN_Clients 255.255.255.0 172.26.1.0 255.255.255.0 pager lines 24 logging enable logging asdm informational mtu inside 1500 mtu outside 1500 ip local pool vpn 172.26.1.180-172.26.1.200 mask 255.255.255.0 ip local pool vpn2 172.26.2.100-172.26.2.200 mask 255.255.255.0 ip local pool vpn3 172.26.3.100-172.26.4.150 mask 255.255.255.0 ip local pool vpn4 172.26.1.240-172.26.1.250 mask 255.255.255.0 ip local pool FTFVPN_Pool 176.26.1.150-176.26.1.170 mask 255.255.255.0 icmp unreachable rate-limit 1 burst-size 1 asdm image disk0:/asdm-524.bin no asdm history enable arp timeout 14400 global (outside) 1 interface nat (inside) 0 access-list inside_nat0_outbound nat (inside) 1 0.0.0.0 0.0.0.0 static (inside,outside) tcp interface 3389 Servidor 3389 netmask 255.255.255.255 static (inside,outside) tcp interface www Servidor www netmask 255.255.255.255 access-group outside_access_in in interface outside route outside 0.0.0.0 0.0.0.0 192.168.1.1 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 mgcp-pat 0:05:00 timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00 timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute http server enable http 172.26.1.0 255.255.255.0 inside no snmp-server location no snmp-server contact snmp-server enable traps snmp authentication linkup linkdown coldstart crypto ipsec transform-set TRANS_ESP_3DES_SHA esp-3des esp-sha-hmac crypto ipsec transform-set TRANS_ESP_3DES_SHA mode transport crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto dynamic-map outside_dyn_map 20 set pfs group1 crypto dynamic-map outside_dyn_map 20 set transform-set ESP-3DES-SHA crypto dynamic-map outside_dyn_map 40 set pfs group1 crypto dynamic-map outside_dyn_map 40 set transform-set TRANS_ESP_3DES_SHA crypto dynamic-map outside_dyn_map 60 set pfs group1 crypto dynamic-map outside_dyn_map 60 set transform-set ESP-3DES-SHA crypto dynamic-map outside_dyn_map 80 set pfs group1 crypto dynamic-map outside_dyn_map 80 set transform-set TRANS_ESP_3DES_SHA crypto dynamic-map outside_dyn_map 100 set pfs group1 crypto dynamic-map outside_dyn_map 100 set transform-set TRANS_ESP_3DES_SHA crypto dynamic-map outside_dyn_map 120 set pfs group1 crypto dynamic-map outside_dyn_map 120 set transform-set ESP-3DES-SHA crypto map outside_map 65535 ipsec-isakmp dynamic outside_dyn_map crypto map outside_map interface outside crypto isakmp enable outside crypto isakmp policy 10 authentication pre-share encryption 3des hash sha group 2 lifetime 86400 crypto isakmp nat-traversal  20 telnet timeout 5 ssh timeout 5 console timeout 0 dhcpd auto_config outside ! dhcpd address 172.26.1.90-172.26.1.217 inside ! webvpn enable outside url-list FTFVLC "DYNAMICS" cifs://172.26.1.100 1 port-forward TEST 3389 172.26.1.100 3389 Terminal Server group-policy DefaultRAGroup internal group-policy DefaultRAGroup attributes banner value Bienvenido a la red de FTF dns-server value 172.26.1.100 80.58.32.97 vpn-tunnel-protocol IPSec l2tp-ipsec webvpn split-tunnel-policy tunnelall default-domain value ftf.es group-policy DfltGrpPolicy attributes banner none wins-server none dns-server none dhcp-network-scope none vpn-access-hours none vpn-simultaneous-logins 3 vpn-idle-timeout 30 vpn-session-timeout none vpn-filter none vpn-tunnel-protocol IPSec l2tp-ipsec webvpn password-storage disable ip-comp disable re-xauth disable group-lock none pfs disable ipsec-udp disable ipsec-udp-port 10000 split-tunnel-policy tunnelall split-tunnel-network-list none default-domain none split-dns none intercept-dhcp 255.255.255.255 disable secure-unit-authentication disable user-authentication disable user-authentication-idle-timeout 30 ip-phone-bypass disable leap-bypass disable nem disable backup-servers keep-client-config msie-proxy server none msie-proxy method no-modify msie-proxy except-list none msie-proxy local-bypass disable nac disable nac-sq-period 300 nac-reval-period 36000 nac-default-acl none address-pools value vpn2 smartcard-removal-disconnect enable client-firewall none client-access-rule none webvpn   functions url-entry   html-content-filter none   homepage none   keep-alive-ignore 4   http-comp gzip   filter none   url-list none   customization value DfltCustomization   port-forward value TEST   port-forward-name value Acceso a aplicaciones   sso-server none   deny-message value Login was successful, but because certain criteria have not been met or due to some specific group policy, you do not have permission to use any of the VPN features. Contact your IT administrator for more information   svc none   svc keep-installer installed   svc keepalive none   svc rekey time none   svc rekey method none   svc dpd-interval client none   svc dpd-interval gateway none   svc compression deflate group-policy FTFVPN_Group internal group-policy FTFVPN_Group attributes dns-server value 172.26.1.100 vpn-tunnel-protocol IPSec l2tp-ipsec split-tunnel-policy tunnelspecified split-tunnel-network-list value FTFVPN_Group_splitTunnelAcl default-domain value ftf.es address-pools value vpn2 group-policy VPNSSL internal group-policy VPNSSL attributes vpn-tunnel-protocol IPSec l2tp-ipsec webvpn webvpn   functions url-entry file-access file-entry file-browsing mapi port-forward filter http-proxy auto-download citrix username raul password xxxxxx encrypted privilege 0 username raul attributes vpn-group-policy FTFVPN_Group tunnel-group DefaultRAGroup general-attributes address-pool vpn2 default-group-policy DefaultRAGroup tunnel-group DefaultRAGroup ipsec-attributes pre-shared-key * tunnel-group DefaultWEBVPNGroup general-attributes default-group-policy VPNSSL tunnel-group DefaultWEBVPNGroup webvpn-attributes nbns-server Servidor master timeout 5 retry 3 tunnel-group FTFVPN_Group type ipsec-ra tunnel-group FTFVPN_Group general-attributes address-pool vpn2 default-group-policy FTFVPN_Group tunnel-group FTFVPN_Group ipsec-attributes pre-shared-key * ! class-map inspection_default match default-inspection-traffic ! ! policy-map type inspect dns preset_dns_map parameters   message-length maximum 512 policy-map global_policy class inspection_default   inspect dns preset_dns_map   inspect ftp   inspect h323 h225   inspect h323 ras   inspect rsh   inspect rtsp   inspect esmtp   inspect sqlnet   inspect skinny   inspect sunrpc   inspect xdmcp   inspect sip   inspect netbios   inspect tftp ! service-policy global_policy global prompt hostname context Cryptochecksum:f5e713652d4a2e2623248d7e49086105 : end asdm image disk0:/asdm-524.bin asdm location Servidor 255.255.255.255 inside asdm location IP_publica 255.255.255.255 inside asdm location IP_externa 255.255.255.255 inside asdm location IP_Externa2 255.255.255.255 inside asdm location VPN_Clients 255.255.255.0 inside no asdm history enable 

    Raul,

    I don't see to apply ACLs inside the interface or as vpn-filter that will prevent the PING of the SAA within the intellectual property to the VPN client.

    Are you sure that the VPN client does not have the Windows Firewall on or antivirus software that prevents to respond to PING?

    Federico.

  • ASA VPN Clustering

    I have 4 pairs of HA VPN in 4 different geographic regions of the world.  Cisco ASA supports the Alliance of more than 2 VPN servers?  Given that the AnyConnect client does not have the ability to store login as the old client IPSec profiles I need a way to provide 1 hostname which will be used for all 4 VPN servers.  Any suggestions?

    Eric

    You will be very happy.  Read this.

    https://supportforums.Cisco.com/document/58711/AnyConnect-optimal-gateway-selection-operation

    In short, AnyConnect can store profiles.  However, it is best to create the same profile and store it on each VPN cluster allow users to shoot their next login.

    On the modern Windows OS the XML profile is stored in:

    %ProgramData%\Cisco\Cisco AnyConnect secure mobility Client\Profile

  • ASA VPN - allow user based on LDAP Group

    Hello friends

    I have create a configuration to allow connection based on LDAP Group.

    I m not specialize in the firewall and I tried to follow the links above, but both seem old, commanded several is not available.

    http://www.tunnelsup.com/Cisco-ASA-VPN-authorize-user-based-on-LDAP-group

    http://www.Cisco.com/c/en/us/support/docs/security/ASA-5500-x-series-NEX...

    Anyone know how I can do?

    Thank you

    Marcio

    I like to use the Protocol DAP (dynamic access policies) to control this.  Follow this guide:

    https://supportforums.Cisco.com/document/7691/ASA-8X-dynamic-access-policies-DAP-deployment-guide

  • ASA VPN clients

    I couldn't find the answer to this in google.

    You have to use the anyconnect software or you can use other as openvpn client software to connect to your asa.

    If it is for home, ASAs all equipped with 2 free licenses of AnyConnect Premium.

    You can even set up a VPN SSL without client using those and does not any client software - a simple browser.

    Purchase price for a small number of licenses AnyConnect is very cheap indeed.

    You can use generic third-party clients for IPsec VPN IKEv1 (not for the SSL VPN client-oriented).

  • Cannot telnet ASA VPN remote

    Hello

    I set up a VPN between two sites using two cisco asa. The VPN works perfectly, but I can not telnet, ssh or run ASDM on the ASA remote, that is, if I'm on LAN 1, I can not telnet, ssh or run ASDM on ASA2 and vice versa.

    Just to test, the entire networks (LAN1 and LAN2) have all-IP and ICMP authorized on VPN, but no way.

    I can connect and everything else between LAN1 and LAN2.

    on the ASA1, I tried both

    Telnet netmask2 LAN2 inside

    and

    Telnet netmask2 LAN2 outdoors

    What's wrong?

    Thank you

    You will need:

    inside management interface

    HTH,

    John

  • ASDM conc (ASA) VPN access

    I have the script like this:

    an ASA, which is the FW, TR making static NAT from the public to the private IP and private IP address add is add conc (another ASA) VPN. I am accessing these devices via the VPN client and I get the address IP of VPN pool set on VPN conc. VPN conc. is in a DMZ VLAN, but it also has connection to the local network segment. Purposes of mgmt, I connect to this VPN through SSH conc via a switch in the local network segment. To use the http access, I have to be on one of the servers that are in the local network segment. Since then, when I set up the VPN connection, I'm sure VPN conc., what can do to access http directly from my PC?

    This sets up on the conc VPN:

    management-access inside

    After that you should be able to use ASDM over the VPN tunnel, by connecting to its inside ip address.

    hth
    Herbert
    (note, I assume the name of the interface connected to the LAN is named "inside", if not adapt at will )

  • ASA VPN positive = SSL VPN?

    Hello

    I have a pair of FO, I need to exchange an ASA5520 who owns a license of VPN over 750

    Can I use an ASA5520 with ASA5500-SSL-750 instead

    Regards Tony

    Yes, it is always available on order. Part number: ASA5520-VPN-PL =

    In addition, this more ASA VPN would be much much cheaper than the SSL VPN license.

    Thank you

    Kiran

  • New ASA/VPN configuration

    So, I am looking to add one of my spare 5510 firewall to my secondary network as a vpn connection.

    All I want this new ASA to do is handle my site anyconnect VPN connections.  I'm pretty new to ASAs if any help would be great.  I know how to create a new access VPN on my ASA and I added a NAT for my inside and outside traffic to my new Pool of IP VPN.

    My question is, since it's only for the VPN and I want all my current internal traffic to continue to the asa 5510 existing routing, do I have to enter the ACL to my new single AAS of VPN?  ACLs are used for VPN traffic and do I need them to traffic the route via VPN?

    I'll put up inside interface of connection to one of my main Cisco switches and the outside interface connects to my DMZ switch on the new ASA only VPN.

    Thank you

    I don't know if I am how you connect to the external interface of single ASA VPN. Normally, in this type of installation, we would see the ASA VPN "in parallel" with the perimeter firewall.

    You mention the DMZ switch that threw me a little. If you are in France through your main firewall and go to single ASA VPN via the DMZ then Yes you will need to allow several open ports (protocol 50, udp/500, tcp/443 among others) and may have to do some other techniques (NAT - T, etc.) depending on the type of remote you are implementing. That's why we rarely see this configuration used - it adds a good dose of complexity without significant benefit.

    When the old facility is used, you need to switch internal to know to route traffic to the pool VPN through the only ASA VPN inside the interface. A static route is more often used, although you can use OSPF or EIGRP if you wanted to.

    Should generally not be any access list that VPN traffic around the Bank access lists incoming interface. Back to remote clients traffic is coming from inside and out through (and is usually part of anestablished connection) so no access list is necessary inside.

  • 8.3 ASA VPN access rules

    Hi, I recently bought an ASA 5520 to use as a VPN gateway for several tunnells site to site VPN. I've upgraded to version 8.3, and set up a lab environment. I implemented a simple VPN with a rule of intellectual property general permit to stert with and everything works fine. I'm having trouble tightenign access now, if I change the access on the SAA for ICMP I can ping both directions, if I add tcp I can telnet from a computer at the other end of the VPN, but if I change the tcp protocol to telnet, I can't connect. the other end on the VPN is a cisco 2620XM and I match the lists of access for each of the changes. I also do not understand the meaning of the ASA access list, it seems that if I want to allow the remote tcp host behind the ASA access I have the host behind the ASA as the source, it appears backward? Anyone can shed some light on this? very much appreciated.

    Yes, you are supposed to only configure 'IP' to your ACL (ACL applied to your crypto card) crypto and crypto ACL supposed to mirror image on each peer, so when you change to specific TCP/UDP ports, is not mirror image of the other side/peer more.

    I thought that you use ACL applied to "vpn-filter".

    But in the previous post, actually configure you ACL on each interface.

    The above is 3 different ACL you have applied differently (crypto ACL--> apply to the card crypto, vpn ACL--> apply to vpn-filter and your normal ACL interface).

  • I can't have a log and snmp in vpn

    Hello

    I can't have a log and snmp in vpn when I want to achieve the management interface, or remote access to asdm and ssh is strange ok.it for your help thank you.

    Best regards

    If you want to access the ASA via a VPN connection, you would not use (or should use) NAT.  You only need to add command -access to the administration .

    So let's say you want to use the IP address associated with the interface named inside of handle the ASA.  Then you go inside management-access command

    --
    Please do not forget to rate and choose a good answer

  • Doubt on the RA aaa using ACS 5.3 vpn user

    Hello

    I'm putting in place of the VPN on 8.4 ASA with 2 - VPNGp1 and VPNGp2. VPNGp1 groups users will access 1.2.3.0/24 and VPNGp2 users will have access to 5.6.7.0/24. User authentication will be done using RADIUS 5.3 ACS.

    On ASA, I configured pools VPN groups, ACL of VPN, IP, tunnel of groups and group for each group strategies.

    GBA, I created vpn-user1 and user2-vpn for each of the 2 groups.

    I don't know if some configurations more must be done on ASA and AC... Do I need to add new users - vpn-user1 and user2-vpn - on ASA, under each corresponding group policy, using the command political vpn-group?  Or I need to do something else on the ACS?

    Finally, how can I configure authorization and accounting for VPN users? I have to do this on GBA or ASA?

    Please advice.

    Thank you.

    Hello

    Authentication using radius aims to centralize user accounts and policies so that you will not have to configure these on the SAA. You must create a group of authentication servers that points to your ACS, then you will have to refer to this group of servers to your tunnel-group for user authentication queries will be forwarded to ACS for authentication. For accounting you will create an accounting server group and also assign to your tunnel group configuration.

    The GBA, you will need to create a network client that is ASA, and the shared secret will be the same. You create an element of authorization policy network who have the permission settings, or you can choose allowed access, which allows authentication succeed without any special authorization.

    You can debug the sessoin using crypto vpnclient 255 debugging to view the authentication stream.

    Using SSL vpn (anyconnect) for these sessions?

    Thank you

    Tarik Admani

  • ASA ASA VPN Site to Site

    Have a 9.1 2 5510 ASA and ASA 5505 9.1 2

    The 5510 is located in the main office and the 5505 is located in a remote installation.  I want to create a tunnel that will allow the main office to access subnets remote installation while allowing devices to remote installation access devices to corporate headquarters.  Example below.

    5510

    10.2.0.0/16

    /\

    ||

    \/

    5505

    172.16.0.0/16

    10.166.0.0/16

    Currently, I have one of the interfaces on the configured 5510 to a VLAN for our wifi.  Another interface is configured for our backup ISP.  The installation works fantastic.  When I run the wizard from site to site vpn according to this video "https://supportforums.cisco.com/videos/5933" but I'm confused with a couple of parameters.

    Activate nat exempt?  Can I do this on both devices or just one and if so who?

    Do I need to configure static routes to access these different subnets?

    There is a router involved, but it is for the ISP.  There value transmit all packets intended for installation remotely for 5510 2 subnets.  Thus, packages do get sent but seem to die once they hit the 5510.

    Hello

    Okay, so here should be the changes you need.

    What we essentially on two of the units, it is remove some configurations which are not necessary or are wrong.

    ASA could give some notifications of deleting a "crypto map" command but you need not worry about this. He complains probably input incomplete "crypto map" or something in that direction.

    Seems to me that the ACL of VPN L2L is wrong on both units and also the NAT. The ASA5510 also seems to have a double for the same VPN L2L configuration that I suggest to remove below.

    ASA5510

    LOCAL: 10.2.0.0/16

    DISTANCE: 10.166.0.0/16

    DELETE CONFIGURATIONS

    No crypto tw_map 3 game card address tw_cryptomap_1

    no card crypto tw_map 3 peers set 69.x.x.x

    no card crypto tw_map 3 set ikev1 transform-set ESP ESP-3DES-MD5 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 - OF - SHA ESP - THE - MD5

    no card crypto tw_map 3 set ikev2 AES AES192 AES256 3DES ipsec-proposal

    No crypto tw_map 1 game card address tw_cryptomap

    No tw_cryptomap extensive list 10.2.0.0 ip access do not allow 255.255.0.0 any4

    No tw_cryptomap_1 extensive list 10.2.0.0 ip access do not allow 255.255.0.0 any4

    no nat (private, tw) static source NETWORK_OBJ_10.2.0.0_16 NETWORK_OBJ_10.2.0.0_16 non-proxy-arp-search to itinerary

    ADD CONFIGURATIONS

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

    Note to access VPN L2L encryption field L2LVPN-ACL-list

    access-list ACL L2LVPN 255.255.0.0 allow 10.2.0.0 ip 10.166.0.0 255.255.0.0

    address for correspondence card crypto tw_map 1 L2LVPN-ACL

    the object of the LAN network

    10.2.0.0 subnet 255.255.0.0

    being REMOTE-LAN network

    10.166.0.0 subnet 255.255.0.0

    LAN LAN static NAT (private, tw) static source destination REMOTE - LAN LAN

    ASA5505

    LOCAL: 10.166.0.0/16

    DISTANCE: 10.2.0.0/16

    DELETE CONFIGURATIONS

    No crypto outside_map 1 game card address outside_cryptomap

    No outside_cryptomap extensive list ip 10.166.0.0 access allow to 255.255.0.0 any4

    no nat (outside, outside) static source NETWORK_OBJ_10.166.0.0_16 NETWORK_OBJ_10.166.0.0_16 non-proxy-arp-search to itinerary

    ADD CONFIGURATIONS

    Note to access VPN L2L encryption field L2LVPN-ACL-list

    IP 10.166.0.0 allow to Access-list L2LVPN-ACL 255.255.0.0 10.2.0.0 255.255.0.0

    address for correspondence outside_map 1 rypto map L2LVPN-ACL

    the object of the LAN network

    10.166.0.0 subnet 255.255.0.0

    being REMOTE-LAN network

    10.2.0.0 subnet 255.255.0.0

    Static NAT LAN LAN (inside, outside) destination static REMOTE - LAN LAN

    I would like to know if it works for you. It may be useful

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

    If there are still problems after these configurations then allows to observe the situation again.

    -Jouni

Maybe you are looking for

  • Camileo H20: How to save white balance settings

    Hello Just got this camcorder and find my way round with him. My question is when you replace the night mode settings and the balance of whites etc, when you close the screen and open it again to continue shooting, mode returned to the automobile and

  • call forwarding

    Here's the situation: I have a HK registered number online and I want to ask if it's possible for me to forward calls to this number to my UK mobile number?how he will be charged if possible?

  • Bitlocked drive share over a network

    Original title: Bitlocker Hello Would like to know what can I share drive bit locked onto the network and steps for the same. It can be for versions of Windows.

  • Nor-Daq 6251 set hour/time between samples

    I'm trying to calculate the expected error for an experience that I do and I don't know if I've done enough to determine the 'break-in' or the time between samples. We use 8 differential channels to the maximum sampling frequency, the card can do (1.

  • Drive not valid error H:

    I have Windows XP Professional SP3 and when I try to install or uninstall an application I get a "Error 1327 - Invalid drive H:".  My system does not drive H: