NAT exempted for pool vpn in ASDM

Similar Questions

• Question for NAT exemption

  I have an ASA 5545 X 9.6 1 code running, and I had a question regarding NAT exemptions for Anyconnect VPN client.

  When I initially configured the Anyconnect VPN, I did the usual steps: created a local customer pool, authentication, customer software image and exemptions of NAT using the new syntax. Example of

  NAT (inside, outside) static source PROD-PROD-NETWORKS static destination VPN CLIENT VPN CLIENT POOL no-proxy-arp-route search

  I also have an ACL of VPN clients.

  Then I added a network in the ACL, added a route on the network of the SAA, but I forgot to put this network in the group that the above (PROD-NETWORKS). In other words, I forgot to make an exemption nat for this new network.

  But customers were still able to connect to the new network without derogation.

  If something has changed? Is - it is no longer necessary? How is this even work?

  Hi Colin,

  Well usually NAT exemption is necessary 9.X code introduced the volatile PAT PAT and multisession feature, the feature of p. - session is enabled by default and is allowed for better scalability, this feature also is not a timeout which means that you can have more & than multisession (translations of PAT in the course of a single IP address) , this now to return to the initial request, let´s, remember that a dynamic NAT is not bidirectional, so you're from the VPN client to the IP address of the client, and it is allowed. This is (is there an object configured for the internet that must be put in correspondence of NAT?), what line # is the exemption of NAT in? What happens if you delete the exemption of NAT, or place as line 1?

  Because you are specifying NAT exemption is still being offset, it seems somehow just, but if you see it in the prospect that the dynamic NAT is one-way for internal hosts, and the current flow rate seems to be: VPN user accesses the SAA and this is allowed because it is a VPN traffic and "Sysopt connection permit-vpn" allows traffic and while he has not matched NAT (right here should the free equivalent of) NAT, if it isn't, it is does not match any other NAT for the host 'outside') then just traffic continues to go to the internal host (path Session Management), then the answer must match this stream via the (Fast Path flow), obviously the package is the encapsulated and encrypted and vice versa as well.

  Keep me posted!

  Please note and mark it as correct the helpful post!

  David Castro,

• VPN - NAT Exemption?

  Hi all

  Just a mental block, I feel at the moment.

  ASA 5585 code 9.0.x race - there is no NAT configuration at all on the box. This ASA firewall will end a site to site VPN. -

  My question is - is a rule of "NAT exemption" required... .similar to the crypto ACL for the traffic in the tunnel... .or is NAT exemption required only when NAT is configured.

  My apologies if this is a silly question

  Thank you

  James

  When there is no NAT config, the ASA will pass all traffic not translated, which includes the traffic tunnel. If you're right, you don't need any NAT exemption.

  However, you can configure it. For example, if you plan to add NAT at a later stage, then it might be easier to implement than NAT if your NAT exemption is already in place.

• ASA Version 9.0 (1) - Ping works both inside and outside, WWW does not work for remote VPN

  I am at a loss, I can connect VIA VPN and Ping inside the IPs (192.168.1.2) and outside (4.2.2.2) IPs of the remote VPN client, but can't surf WWW. Inside the network, all users have WWW access and the network is fine. I'm new on the revisions to ver 8.3 and don't see what I'm missing?

  Info:

  ASA-A # sh xl
  in use, the most used 12 4
  Flags: D - DNS, e - extended, I - identity, i - dynamics, r - portmap,
  s - static, T - twice, N - net-to-net
  NAT inside:192.168.1.0/24 to outside:24.180.x.x/24
  flags s idle 0:10:46 timeout 0:00:00
  NAT outside:192.168.2.0/24 to outside:24.180.x./24
  flags s idle 0:00:59 timeout 0:00:00
  NAT inside:192.168.1.0/24 to any:192.168.1.0/24
  sitting inactive flags 0:11:51 timeout 0:00:00
  NAT any:192.168.2.0/24 to inside:192.168.2.0/24
  sitting inactive flags 0:11:51 timeout 0:00:00
  ASA-A #.

  ASA-A # sh nat
  Manual NAT policies (Section 1)
  1 (inside) to destination of (all) Inside_Net Inside_Net the VPN-NET VPN static static
  translate_hits = 3, untranslate_hits = 3

  Auto NAT policies (Section 2)
  1 (inside) (outside) static source Inside_Net 24.180.x.x
  translate_hits = 3, untranslate_hits = 184
  2 (outdoor) (outdoor) static source VPN-net 24.180.x.x
  translate_hits 97, untranslate_hits = 91 =
  ASA-A #.

  Journal of the Sho:

  % 305013-5-ASA: rules asymmetrical NAT matched for flows forward and backward; Connection for udp src outside:192.168.2.10/137(LOCAL\User) dst outside:192.168.2.255/137 refused due to path failure reverse that of NAT
  % ASA-609002 7: duration of outside local host: 192.168.2.255 disassembly 0:00:00
  % ASA-609001 7: built outside local host: 192.168.2.255

  % 305013-5-ASA: rules asymmetrical NAT matched for flows forward and backward; Connection for udp src outside:192.168.2.10/137(LOCAL\User) dst outside:192.168.2.255/137 refused due to path failure reverse that of NAT
  % ASA-609002 7: duration of outside local host: 192.168.2.255 disassembly 0:00:00

  Current config:

  ASA Version 9.0 (1)
  !
  ASA-A host name
  domain a.local
  enable the encrypted password xxxxx
  XXXXX encrypted passwd
  names of
  IP local pool vpnpool 192.168.2.10 - 192.168.2.20
  !
  interface Ethernet0/0
  Inet connection description
  switchport access vlan 2
  !
  interface Ethernet0/1
  LAN connection description
  switchport access vlan 3
  !
  interface Ethernet0/2
  switchport access vlan 3
  !
  interface Ethernet0/3
  switchport access vlan 3
  !
  interface Ethernet0/4
  switchport access vlan 3
  !
  interface Ethernet0/5
  switchport access vlan 3
  !
  interface Ethernet0/6
  switchport access vlan 3
  !
  interface Ethernet0/7
  switchport access vlan 3
  !
  interface Vlan1
  No nameif
  no level of security
  no ip address
  !
  interface Vlan2
  nameif outside
  security-level 0
  IP address 24.180.x.x 255.255.255.248
  !
  interface Vlan3
  nameif inside
  security-level 100
  IP 192.168.1.1 255.255.255.0
  !
  banner exec   ********************************************
  banner exec   *                                          *
  exec banner * ASA-A *.
  banner exec   *                                          *
  exec banner * CISCO ASA5505 *.
  banner exec   *                                          *
  exec banner * A Services Inc.              *
  exec banner * xxx in car Street N. *.
  exec banner * city, ST # *.
  banner exec   *                                          *
  banner exec   ********************************************
  exec banner ^
  passive FTP mode
  DNS server-group DefaultDNS
  domain a.local
  permit same-security-traffic intra-interface
  network obj_any object
  subnet 0.0.0.0 0.0.0.0
  network of the Inside_Net object
  subnet 192.168.1.0 255.255.255.0
  network of the VPN-net object
  Subnet 192.168.2.0 255.255.255.0
  access-list extended sheep permit ip 192.168.2.0 255.255.255.0 192.168.1.0 255.255.255.0
  allowed incoming access extended gre a whole list
  inbound udp allowed extended access list any host 24.180.x.x eq 1723
  list of allowed inbound tcp extended access any host 24.180.x.x eq pptp
  list of allowed inbound tcp extended access any host 24.180.x.x eq smtp
  list of allowed inbound tcp extended access any host 24.180.x.x eq www
  list of allowed inbound tcp extended access any host 24.180.x.x eq https
  list of allowed inbound tcp extended access any host 24.180.x.x eq 987
  inbound udp allowed extended access list any host 24.180.x.x eq 25
  inbound udp allowed extended access list any host 24.180.x.x eq 443
  inbound udp allowed extended access list any host 24.180.x.x eq www
  inbound udp allowed extended access list any host 24.180.x.x eq 987
  pager lines 24
  Enable logging
  debug logging in buffered memory
  asdm of logging of information
  Outside 1500 MTU
  Within 1500 MTU
  ICMP unreachable rate-limit 1 burst-size 1
  ICMP allow all outside
  ICMP allow any inside
  don't allow no asdm history
  ARP timeout 14400
  no permit-nonconnected arp
  public static Inside_Net Inside_Net destination NAT (inside, all) static source VPN-NET VPN
  !
  network of the Inside_Net object
  NAT static 24.180.x.x (indoor, outdoor)
  network of the VPN-net object
  24.180.x.x static NAT (outdoors, outdoor)
  Access-group interface incoming outside
  Route outside 0.0.0.0 0.0.0.0 24.180.x.x 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
  Enable http server
  No snmp server location
  No snmp Server contact
  Server enable SNMP traps snmp authentication linkup, linkdown warmstart of cold start
  Crypto ipsec transform-set ikev1 VPN remote esp-3des esp-md5-hmac
  Crypto ipsec ikev2 VPN ipsec-proposal-remotetest
  Protocol esp encryption aes - 256, aes - 192, aes, 3des and
  Esp integrity sha-1 protocol
  Crypto ipsec pmtu aging infinite - the security association
  Crypto-map dynamic dyn1 1jeu ikev1 transform-set remote VPN
  Crypto-map dynamic dyn1 1jeu reverse-road
  map VPN - map 1-isakmp ipsec crypto dynamic dyn1
  VPN-card interface card crypto outside
  Crypto ca trustpoint _SmartCallHome_ServerCA
  Configure CRL
  trustpool crypto ca policy
  Crypto ca certificate chain _SmartCallHome_ServerCA
  certificate ca 6ecc7aa5a7032009b8cebcf4e952d491
  308204 4 a0030201 d 308205ec 0202106e cc7aa5a7 032009b 8 cebcf4e9 52d 49130
  010105 05003081 09060355 04061302 55533117 ca310b30 0d 864886f7 0d06092a
  30150603 55040 has 13 0e566572 69536967 6e2c2049 6e632e31 1f301d06 0355040b
  13165665 72695369 676e2054 72757374 204e6574 776f726b 313 has 3038 06035504
  0b 133128 63292032 30303620 56657269 5369676e 2c20496e 632e202d 20466f72
  20617574 7a 656420 75736520 6f6e6c79 31453043 06035504 03133c 56 686f7269
  65726953 69676e20 436c 6173 73203320 5075626c 69632050 72696 72792043 61 d
  65727469 66696361 74696f6e 20417574 686f7269 7479202d 20473530 1e170d31
  30303230 38303030 3030305a 170d 3230 30323037 32333539 35395a 30 81b5310b
  30090603 55040613 02555331 17301506 0355040a 130e5665 72695369 676e2c20
  496e632e 311f301d 06035504 0b 131656 65726953 69676e20 54727573 74204e65
  74776f72 6b313b30 5465726d 20757365 20617420 73206f66 39060355 040b 1332
  68747470 7777772e 733a2f2f 76657269 7369676e 2e636f6d 2f727061 20286329
  302d 0603 55040313 26566572 69536967 61737320 33205365 6e20436c 3130312f
  63757265 20536572 76657220 20473330 82012230 0d06092a 864886f7 4341202d
  010101 05000382 010f0030 82010 0d has 02 b187841f 82010100 c20c45f5 bcab2597
  a7ada23e 9cbaf6c1 39b88bca c2ac56c6 e5bb658e 444f4dce 6fed094a d4af4e10
  9c688b2e 957b899b 13cae234 34c1f35b f3497b62 d188786c 83488174 0253f9bc
  7f432657 5833833b 330a17b0 d04e9124 ad867d64 12dc744a 34a11d0a ea961d0b
  15fca34b 3bce6388 d0f82d0c 948610ca b69a3dca eb379c00 48358629 5078e845
  1941 4ff595ec 7b98d4c4 71b350be 28b38fa0 b9539cf5 ca2c23a9 fd1406e8 63cd
  18b49ae8 3c6e81fd e4cd3536 b351d369 ec12ba56 6e6f9b57 c58b14e7 0ec79ced
  4a546ac9 4dc5bf11 b1ae1c67 81cb4455 33997f24 9b3f5345 7f861af3 3cfa6d7f
  81f5b84a d3f58537 1cb5a6d0 09e4187b 384efa0f 01 has 38201 02030100 df308201
  082b 0601 05050701 01042830 26302406 082 b 0601 db303406 05050730 01861868
  7474703a 2f2f6f63 73702e76 65726973 69676e2e 636f6d30 12060355 1 d 130101
  ff040830 02010030 70060355 b 200469 30673065 060, 6086 480186f8 1 d 060101ff
  45010717 03305630 2806082b 06010505 07020116 1 c 687474 70733a2f 2f777777
  2e766572 69736967 6e2e636f 6d2f6370 73302 has 06 082 b 0601 05050702 02301e1a
  1 c 687474 70733a2f 2f777777 2e766572 69736967 6e2e636f 6d2f7270 61303406
  03551d1f 042d302b 3029 has 027 a0258623 68747470 3a2f2f63 726c2e76 65726973
  69676e2e 636f6d2f 2d67352e 70636133 63726c 30 0e060355 1d0f0101 ff040403
  02010630 6d06082b 06010505 07010c 59305730 55160969 5da05b30 04 61305fa1
  6 d 616765 2f676966 3021301f 2b0e0302 30070605 1a04148f e5d31a86 ac8d8e6b
  c3cf806a d448182c 7b192e30 25162368 7474703a 2f2f6c6f 676f2e76 65726973
  69676e2e 636f6d2f 76736c6f 676f2e67 69663028 0603551d 11042130 1fa41d30
  1 b 311930 17060355 04031310 56657269 5369676e 4d504b49 2d322d36 301D 0603
  445 1653 44c1827e 1d20ab25 f40163d8 be79a530 1f060355 c 1604140d 551d0e04
  1 230418 30168014 7fd365a7 c2ddecbb f03009f3 4339fa02 af333133 300 d 0609 d
  2a 864886 05050003 82010100 0c8324ef ddc30cd9 589cfe36 b6eb8a80 f70d0101
  4bd1a3f7 9df3cc53 ef829ea3 a1e697c1 589d756c e01d1b4c fad1c12d 05c0ea6e
  b2227055 d9203340 3307c 265 83fa8f43 379bea0e 9a6c70ee f69c803b d937f47a
  99 c 71928 8705 404167d 1 273aeddc 866d 24f78526 a2bed877 7d494aca 6decd018
  481d22cd 0b0b8bbc f4b17bfd b499a8e9 762ae11a 2d876e74 d388dd1e 22c6df16
  b62b8214 0a945cf2 50ecafce ff62370d ad65d306 4153ed02 14c8b558 28a1ace0
  5becb37f 954afb03 c8ad26db e6667812 4ad99f42 fbe198e6 42839b8f 8f6724e8
  6119b5dd cdb50b26 058ec36e c4c875b8 46cfe218 065ea9ae a8819a47 16de0c28
  6c2527b9 deb78458 c61f381e a4c4cb66
  quit smoking
  Crypto ikev1 allow outside
  IKEv1 crypto policy 1
  preshared authentication
  3des encryption
  sha hash
  Group 2
  life 43200
  Telnet timeout 5
  SSH timeout 5
  Console timeout 0

  dhcpd outside auto_config
  !
  a basic threat threat detection
  Statistics-list of access threat detection
  no statistical threat detection tcp-interception
  user name UName encrypted password privilege 15 xxxxxxxxx
  type tunnel-group remote VPN remote access
  attributes global-tunnel-group VPN-remote controls
  address vpnpool pool
  tunnel-group, ipsec VPN-remote controls-attributes
  IKEv1 pre-shared-key *.
  !
  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
  !
  global service-policy global_policy
  context of prompt hostname
  anonymous reporting remote call
  Cryptochecksum:43db9ab2d3427289fb9a0fdb22b551fa
  : end

  Hello

  Its propably because you do not have a DNS server configured for VPN users. Try this command:

   group-policy DfltGrpPolicy attributes dns-server value 8.8.8.8

• Public and private IPs on the same Interface by using NAT Exemption/policy NAT

  I'm looking for some feedback on whether my thoughts on the installation program will run.

  Equipment: PIX 515E 6.2 (2)

  Scenario:

  The inside interface of the PIX will host 3 blocks of addresses IP - 24 public 2 blocks and 1 private/16 block. (All IP addresses have been replaced by dummy blocks.)

  Blocks of audiences:

  * 192.168.10.0/24

  * 192.168.20.0/24

  Block of private:

  * 10.50.0.0/16

  Traffic from the public 2/24 blocks should go through the firewall without address translation.

  The two blocs of the public will be able to receive connections initiated from the Internet.

  Public blocks will need to be able to send and receive traffic on a static VPN tunnel to our headquarters without subject to address translation

  Traffic leaving the sector private/16 block should be subjected to PAT before passing through the firewall.

  Private/block 16 will not receive incoming traffic from the Internet (other than responses to outbound connections initiated from within the private block).

  However, the private block will also have to be able to send and receive traffic on a static VPN tunnel to our headquarters * without * subject to address translation (i.e. hosts on our corporate network must be able to initiate connections to the private block and vice versa).

  The inside interface of the PIX will be connected to a Catalyst 3xxx series layer 3 switch, which will be responsible for routing all internal (so the PIX will never be routing of traffic on the interface, it was received).

  My ideas on how to implement are:

  * Use the exemption of NAT to exempt public address translation blocks. This will allow incoming and outgoing connections through the firewall.

  * Use the exemption of NAT to exempt the block private NAT when connecting to our head office on the VPN tunnel.

  * Use policy NAT w / PAT to translate the block private connecting to all other hosts.

  I have translated these thoughts in the following configuration snippet.

  Because the NAT exemption is processed before policy NAT in the evaluation of the NAT rules, I believe that this should allow the public IP blocks treat incoming/outgoing traffic without translation, while submitting the private translation block (except during handling of incoming/outgoing connections to our network of corporate office).

  Can someone confirm my assumptions about this?

  # ----------------------------------------------------------------------

  traffic of # which should be exempted from translation

  permit ip 192.168.10.0 access list nat_exempt 255.255.255.0 any

  nat_exempt 192.168.20.0 ip access list allow 255.255.255.0 any

  nat_exempt ip 10.50.0.0 access list allow 255.255.0.0 10.100.0.0/16

  traffic of # which should be the subject of translation

  policy_nat ip 10.50.0.0 access list allow 255.255.0.0 any

  # Suppose 192.168.5.1 is the address to use for PAT

  Global (outside) 1 192.168.5.1

  NAT (inside) 0-list of access nat_exempt

  NAT (inside) 1 access-list policy_nat

  # assumes that 192.168.10.7 is the IP address of the inside layer 3 switch

  Route inside 192.168.10.0 255.255.255.0 192.168.10.7 1

  Route inside 192.168.20.0 255.255.255.0 192.168.10.7 1

  Route inside 10.50.0.0 255.255.0.0 192.168.10.7 1

  #assume the following configuration sections appear elsewhere: static tunnel VPN, ACL, ifconfig, etc..

  # ----------------------------------------------------------------------

  Yes, this will work, even if you don't need political NAT for the 10.50.0.0 network. For PAT the 10.50.0.0 network when to anywhere (except via VPN) just do:

  Global 1 192.168.15.1 (outside)

  NAT (inside) 1 10.50.0.0 255.255.0.0

  As I said, you have works perfectly, the above is just an easier way to do it.

• The Vpn Client ASDM download

  I was trying to the vpn Wizard ASDM allows you to download the new client anyconnect 4.2 and I got errors saying that the file is not valid.

  Should which file I download in order for customers to download the vpn client.

  I have asa x 5506

  Hello

  You must use the anyconnect file you get from cisco.com or Cisco partner and download, the .pkg file extension

  for example:

  # poster run | grep anyconnect
  AnyConnect image disk0:/anyconnect-win-4.2.01022-k9.pkg 1

  HTH

  Samer.

• Static and NAT router to router VPN

  Hello

  I have two site VPN using routers. The VPN is fine, BUT - at the end of the seat, the customer has NAT entries static to allow incoming connections - any service that has a NAT static to allow incoming connections from the Internet is inaccessible in the same way. Ping, for example, doesn't have this problem because there is no static NAT entry. I tried to configure a route map-"No. - nat" according to the http://www.cisco.com/en/US/partner/tech/tk583/tk372/technologies_configuration_example09186a00800949ef.shtml , I thought I was working.

  H.O. has the IP 131.203.64.0/24 and 135.0.0.0/24 (I know, I know - I'm trying to change), and the R.O. 192.168.1.0/24.

  Bits of configuration:

  IP nat inside source overload map route SHEEP interface Ethernet0

  IP nat inside source static tcp 135.0.0.248 131.203.100.27 3389 3389 extensible

  (other static removed)

  Int-E0-In extended IP access list

  ip permit 192.168.1.0 0.0.0.255 any

  (other entries deleted)

  access-list 198 deny ip 131.203.64.0 0.0.0.255 192.168.1.0 0.0.0.255

  access-list 198 deny ip 135.0.0.0 0.0.0.255 192.168.1.0 0.0.0.255

  access-list 198 allow ip 135.0.0.0 0.0.0.255 any

  SHEEP allowed 10 route map

  corresponds to the IP 198

  1 remove the static entry for the specified host the VPN problem, but obviously breaks things :(

  2. as mentioned, the VPN itself works fine, I can ping hosts perfectly.

  Any help greatly appreciated :)

  Thank you

  Mike.

  You must use the option of the route to the static NAT map. This is a new feature in 12.2 (4) T according to this page:

  http://www.Cisco.com/univercd/CC/TD/doc/product/software/ios123/123cgcr/ipras_r/ip1_i2g.htm#1079180

  He must do exactly what you want. The old, another way to do is use "The thing", where you create a loopback interface and don't make a nat interface and use routing strategy for routing VPN traffic to one address on the same subnet as the loopback interface, but not the address of the loop. IOS then that réacheminera traffic to the real destination (in this case the remote VPN site), but since now it is not a 'ip nat inside' interface, the static nat translations does not apply and the VPN traffic will not be translated. The problem with this solution is that all loopback traffic is switched to the process, so it is a bit of a hack, but these things are sometimes necessary.

  HTH

• Unable to browse the internet for the VPN (ASA5505 running 8.3)

  We have improved our ASA 5505 to 8.3 firmware image (2) and we have a working VPN configuration (customer VPN in Windows can connect and browse the network of the company as well as their local networks [split tunnel seems to work in this regard]).  However, some time connected they are unable to also browse the internet.  In our configuration of 8.2 (1) we have done 'something' to allow remote users to browse the internet at the same time, but apparently this is not transferred in the upgrade.

  I'm sure it's a simple nat our order routing, but it can't know.  I've gotta hit the road now but will post our config this afternoon if no one knows the "secret" to do.  Ideally, internet traffic to remote users out of their internet connection and not be achieved through the office.  We understand the risks associated with it.

  Hi Scott,.

  To the best of my knowledge, I don't think that l2tp over IPSec supports split tunneling. If you use the Cisco VPN client, you should be able to get this working.

  What we can do in this case is to set up turn on the SAA for these vpn clients. Please add the commands to run below:

  permit same-security-traffic intra-interface

  network of the NETWORK_OBJ_10.0.0.0_27 object

  dynamic NAT interface (outdoors, outdoor)

  Let me know if it helps!

  See you soon,.

  Assia

• Is availble for IPsec VPN FOS 6.3 support stateful failover

  Is availble for IPsec VPN FOS 6.3 support stateful failover

  SAJ

  Hello Saj,

  Unfortunately not... stateful failover replica information such as:

  Table of connection TCP, udp xlate table ports, h.323, PAT port allocation table...

  they replicate data such as:

  user authentication (uauth) table

  Table ISAKMP / IPSEC SA

  ARP table

  Routing information

  Therefore, in the case where the main breaks down, the IPSEC vpn will be reformed for the failover... Meanwhile, the user will not be able to access the applications...

  I hope this helps... all the best... the rate of responses if deemed useful...

  REDA

• Disable ipsec for l2tp vpn connection?

  Hello

  How can I disable ipsec for l2tp vpn connection? I use a linux vpn that offers only l2tp. I remember doing this with winxp in regedit.

  [HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/RasMan/settings] "ProhibitIpSec" = DWORD: 00000001

  How is it possible in win7?

  Thank you.

  Thank you for visiting the Microsoft answers community site. The question you have posted is related to Linux and would be better suited to the community network. Please visit the link below to find a community that will provide the support you want.

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• How's IOS for SSL VPN

  Dear all,

  I have ASA 5510 and Version 8. I want to know IOS for SSL VPN, but I don't know which...

  Please help me show...

  HQ-ASA5510 # HS, fla

  path-# - length - time -.

  177 14137344 January 1, 2003 00:06:12 asa804 - k8.bin

  75 4096 November 21, 2008 12:17:46 log

  79 4096 crypto_archive November 21, 2008 12:18

  178 7562988 November 21, 2008 12:19:30 Amps - 613.bin

  180 4863904 November 21, 2008 12:21:10 securedesktop_asa_3_3_0_129.pkg.zip

  181 4096 November 21, 2008 12:21:10 sdesktop

  188 1462 November 21, 2008 12:21:10 sdesktop/data.xml

  182 2153936 November 21, 2008 12:21:10 anyconnect-victory - 2.2.0133 - k9.pkg

  183 3446540 November 21, 2008 12:21:12 anyconnect-macosx-powerpc - 2.2.0133 - k9.pkg

  184 3412549 November 21, 2008 12:21:16 anyconnect-macosx-i386 - 2.2.0133 - k9.pkg

  185 3756345 November 21, 2008 12:21:16 anyconnect-linux - 2.2.0133 - k9.pkg

  For Version 7. he say the ssl VPN.

  Please help me which line as SSL VPN.

  Best regards

  Rechard

  Richard, you already have the code that supports SSL webvpn on your ASA.

  See page medium low SSL VPN VPN/Web for more detailed examples, which provides all the necessary information for any additional/optional

  plug-ins needed.

  http://www.Cisco.com/en/us/products/ps6120/prod_configuration_examples_list.html

  Details of the sample SSL VPN configuration and types... but all the SSL.

  http://www.Cisco.com/en/us/products/ps6120/products_configuration_example09186a00806ea271.shtml

  What you have in your directory ASA applies the Anyconnect client who is also driven SSL but is a bit different from plain SSL webvpn, I suggest you go to the configuration examples of link that can provide information on the implementation of SSL vpn varios.

  Concerning

• Different 'outside_cryptomap access-list"for each VPN?

  Hello

  Just for my understanding.

  I have a VPN connected to my Cisco ASA 5520 when I tried to add an another VPN, the I must create a 2nd cryptomap, can I not create a group so there is only one card encryption?

  Currently I have:

  access-list 1 permit line outside_cryptomap_1 extended ip 0.0.0.0 0.0.0.0 172.19.15.0 255.255.255.0

  I just added outside_cryptomap_2 line access-list 1 permit extended ip 0.0.0.0 0.0.0.0 172.19.2.0 255.255.255.0

  But I was wondering if I could use something like:

  access-list 1 permit line outside_mycryptomap extended ip 0.0.0.0 0.0.0.0 VPN_Remote_Networks object-group

  When I do this, but I guess that this will cause a problem with the address in hand?

  You must use different access-list in cryptomap for each VPN.

• Type of certificate for ASA VPN IPSEC

  Hi all

  I'm looking to set up an IPSec VPN connection that will authenticate users by certificate only. I configured everything successfully with the local AAA login, but seeks to convert a signed certificate and generate certificates user for users that are not part of a company or Active Directory.

  So here's my question. What kind of certificate I buy (lets say VeriSign aka Symantec)? And if I want to only use this certificate for my VPN and its customers, can I install it on the Cisco ASA and generate user certificates, or should I set up a Windows Server with CA and create all the certificates on this machine?

  My goal is to install the agent AnyConnect 3.1.x on laptop computer of the user, install the certificate user myself. No webVPN or on behalf of the user. I tried the local certification authority in the ASA in a dev environment, but have had no luck so I thought I'd just signed good immediately.

  Thanks in advance,

  BROKEN

  > Do you think I should have a 3rd party signed certificate

  If the VPN is not only used for internal staff, and then always opt for a public certificate. If you ask other users to install your root certificate, you ask them to allow you to be a man in the Middle for all their traffic. It's nothing that needs to be done.

  Registration is generally just to configure the trustpoint and install the certificate. It is very likely that the certification authority uses an intermediate certification authority, so you should install that also. (even keep the AC have howtos on various platforms).

  > I'm still learning here so I apologize if my questions seem to be amateur.

  And be assured, learning never stop... :-)

• Impact of the activation of the NMS for Easy VPN

  Hello

  I'll try and set up a VPN using Easy-VPN between a router Cisco 837 and ASA 5520. Both devices are powered, and no downtime must take place outside the hours. The router should be the server. I see I have to activate the NEM on the firewall so that it works. What would be the impact of this activation that is it might have an impact on service? As I said, I have to do out of hours if she will be.

  Thank you

  Chris

  What do you mean about affect service? If you mean service for generic VPN clients usually crash.

  NEM enable command"by virtue of group policy will not do.

  ---

  HTH. Please rate this post if this has been helpful. If it solves your problem, please mark this message as "right answer".

• ASA - 5540 used for IPSec VPN only - I can do away with Nat 0?

  I'll use an ASA 5540 as our head of VPN endpoint only - and not as a firewall.

  Also, we have a class for our company internal address space routable B address, so we don't need NAT. I would like to disable the function NAT 0 if I can so I always add NAT 0 to ensure that the 5540 does not NAT.

  Y at - it an easy way to disable the need using NAT 0?

  Are there any of the draw to do that?

  You can disable the use of nat 0 disabling the nat control.

  To achieve this, go to the global configuration mode and use this command:

  no nat control

  To check whether you have it turned on, you can check it with:

  SH run nat-control

  See you soon!

  -Butterfly