Site to Site VPN IPSEC for multisite with dual ISP failover

Similar Questions

• Site-to-Site VPN IPSEC falls intermittently

  Site-to-Site VPN IPSEC falls intermittently

  I am currently having a problem with a VPN from Site to Site traffic not only not intermittently. When the problem occurs, I can't Ping the remote site to the AC Site. But I can solve the problem by Pinging from HQ at the Remote Site. My network is currently configured as follows

  -------HQ------

  7.0 (4) version of pix 515 with card Ethernet 4 ports.

  Outside of the interface connected to the Broadband DSL link.

  Outside2 Interface connected to the second link DSL broadband

  -Distance-

  I have 4 Remote Sites. 2 sites connect you to each connection to wide band at HQ to spread the load to HQ

  6.3 (5) pix 501 version

  # The problem #.

  All VPN establishes successfully to the HQ Pix

  Intermittently, a remote site will report that they cannot connect to servers/services in the HQ. When I do a show crypto ipsec's and see the crypto isakmp his headquarters there is no entry for the remote site. However when I do the same on the remote site there is an entry for the HQ. With debugging on the remote site pix I try to ping from a pc to the HQ server and I get the following (see below). If I do a "ipsec Isakmp security association claire crypto ' and ' clear crypto ipsec his ' on the pix of remote site, then I can successfully ping all servers in headquarters.

  This problem seems to have taken place only when I upgraded the pix of a 501 to 515 and added another 2 remote sites and a second broadband, as described above. I'm afraid that there is a problem with software version 7 Pix. Any advice would be greatly appreciated.

  Console record Carrick-PIX01 (config) # 7

  Carrick-PIX01 (config) # ter Lun

  Output Carrick-PIX01 (config) #.

  Carrick-PIX01 # debug crypto ipsec

  Carrick-PIX01 # debug crypto isakmp

  Carrick-PIX01 #.

  ISAKMP (0:0): sending of NAT - T vendor ID - rev 2 & 3

  ISAKMP (0): early changes of Main Mode

  ISAKMP (0): retransmission of the phase 1 (0)...

  ISAKMP (0): retransmission of the phase 1 (1)...

  ISAKMP (0): retransmission of the phase 1 (2)...

  Carrick-PIX01 #.

  Carrick-PIX01 #.

  ISAKMP (0): retransmission of the phase 1 (3)...

  Carrick-PIX01 #.

  Carrick-PIX01 #.

  ISAKMP (0): retransmission of the phase 1 (4)... IPSec (key_engine): request timer shot: count = 1,.

  (identity) local = OUTER-IP, distance = 86.43.74.16,.

  local_proxy = LAN-OFFICE/255.255.255.0/0/0 (type = 4),

  remote_proxy = 194.x.x.x.x.255.0/0/0 (type = 4)

  ISAKMP (0): delete SA: CBC EXTERNAL IP, dst 86.43.74.16

  ISADB: Reaper checking HIS 0x10c167c, id_conn = 0 DELETE IT!

  Peer VPN: ISAKMP: Peer Info for 86.43.74.16/500 not found - peer: 1

  ISADB: Reaper checking HIS 0x10ca914, id_conn = 0

  Can force you the ISAKMP Keepalive, value from IPSec Security Association idle time and on the other. The problem should be solved

  ISAKMP crypto keepalive 30

  Crypto ipsec security association temps_inactivite 60

  Let me know if it helps

• Cisco ASA Site to Site VPN IPSEC and NAT question

  Hi people,

  I have a question about the two Site to Site VPN IPSEC and NAT. basically what I want to achieve is to do the following:

  ASA2 is at HQ and ASA1 is a remote site. I have no problem setting a static static is a Site to IPSEC VPN between sites. Guests residing in 10.1.0.0/16 are able to communicate with hosts in 192.168.1.0/24, but what I want is to configure the NAT with IPSEC VPN for this host to 10.1.0.0/16 will communicate with hosts in 192.168.1.0/24 with translated addresses

  Just an example:

  N2 host (10.1.0.1/16) contacted N1 192.168.1.5 with destination host say 10.23.1.5 No 192.168.1.5 (notice the last byte is the same in the present case,.5)

  The translation still for the rest of the communication (host pings ip destination host 10.23.1.6 N3 N2 not 192.168.1.6 new last byte is the same)

  It sounds a bit confusing to me, but I've seen this type of configuration before when I worked for the supplier of managed services where we have given our customers (Ipsec Site to Site VPN with NAT, don't know how it was setup)

  Basically we contact the customer via site-to-site VPN hosts but their real address were hidden and we used as translated address more high 10.23.1.0/24 instead of (real) 192.168.1.0/24, last byte must be the same.

  Grateful if someone can shed some light on this subject.

  Hello

  OK so went with the old format of NAT configuration

  It seems to me that you could do the following:

  • Configure the ASA1 with static NAT strategy
    • access-list L2LVPN-POLICYNAT allowed ip 192.168.1.0 255.255.255.0 10.1.0.0 255.255.0.0
    • public static 10.23.1.0 (inside, outside) access-list L2LVPN-POLICYNAT
  • Because the above is a static NAT of the policy, this means that the translation will be made only when the destination network is 10.1.0.0/16
  • If you have for example a PAT basic configuration to inside-> external traffic, the above NAT configuration and the custom of the actual configuration of PAT interfere with eachother
  • ASA2 side, you can normally configure NAT0 / NAT Exemption for the 10.1.0.0/16 network
    • Note of the INTERIOR-SHEEP access-list SHEEP L2LVPN
    • the permitted INSIDE SHEEP 10.1.0.0 ip access list 255.255.0.0 10.23.1.0 255.255.255.0
    • NAT (inside) 0-list of access to the INTERIOR-SHEEP
  • You will need to consider that your access-list defining the VPN encrypted L2L traffic must reflect the new NAT network
    • ASA1: allowed to access-list L2LVPN-ENCRYPTIONDOMAIN ip 10.23.1.0 255.255.255.0 10.1.0.0 255.255.0.0
    • ASA2: list L2LVPN-ENCRYPTIONDOMAIN allowed ip 10.1.0.0 access 255.255.0.0 10.23.1.0 255.255.255.0

  I could test this configuration to work tomorrow but I would like to know if it works.

  Please rate if this was helpful

  -Jouni

• Site to Site VPN IPsec IPv6 on issue of routers-Tunnel

  Hi, I am experiencing a problem can any one address the question below and let me know the solution. I have two routers and try to build "Site to Site VPN IPsec IPv6". I followed orders from Cisco and community document but when I apply my profile of ipsec for tunnel interfaces, that the tunnel is down.

  https://supportforums.Cisco.com/docs/doc-27009

  Ali,

  VTI tunnels are meant to be broken when there is no active negotiated spinnakers.

  The tunnel will go towards up/face upwards when there is a means of transport of packages - i.e. the SPIs are present.

  You can control the order spinnakers 'show peer's crypto ipsec '.

  For debugging:

  Debug crypto isa

  Debug crypto ipsec

  M.

• ASA ASA from Site to Site VPN IPSec Tunnel

  Any help would be greatly appreciated...

  I have two devices Cisco ASA with a Site for the configuration of the tunnel VPN IPSec Site as follows: -.

  Site #1 - Cisco ASA running version 8.2 (1) with an internal range of 10.0.0.x/24

  Site #2 - Cisco ASA running version 8.2 (1) with an internal range of 10.1.1.x/24

  Site #1 is simple and has a dynamic NAT rule which translates all of the inside and the outside (public IP) of the SAA.

  Internet access works very well in all workstations of this site.  A static route is configured to redirect all traffic to a public router upstream.

  Site #2 is slightly more complicated; the Cisco ASA is configured with 10.1.1.254/24 as its interior IP address and 10.1.2.254/24 as its external IP address.  A dynamic NAT rule is configured to translate everything inside as the 10.1.2.254 (outside) address of the ASA.  A default static route is then configured to redirect all traffic to a Draytek device on 10.1.2.253.  This device then performs its own private Public NAT.  Again the Internet works fine all hosts inside the Cisco ASA (10.1.1.x)

  The IPSec tunnel is created with the networks local and remote endpoint as above (10.0.0.x/24) and (10.1.1.x/24).  The Draytek at the Site #2 device is configured with a form of DMZ that allows essentially ALL traffic toward the front directly on the external interface of the ASA (10.1.2.254).  The Phase 1 and Phase 2 negotiation of the tunnel ends correctly, and the tunnel is formed without any problem.  However, all traffic passing on networks ICMP does not end and the Syslog reports the following-

  Site #1-

  6

  January 19, 2011

  15:27:21

  302020

  ZEFF-SB-01_LAN

  1

  10.1.1.51

  0

  Built of outbound ICMP connection for faddr 10.1.1.51/0 gaddr ZEFF-SB-01_LAN/1 laddr ZEFF-SB-01_LAN/1

  6

  January 19, 2011

  15:27:23

  302021

  10.1.1.51

  0

  ZEFF-SB-01_LAN

  1

  Connection of ICMP disassembly for faddr 10.1.1.51/0 gaddr ZEFF-SB-01_LAN/1 laddr ZEFF-SB-01_LAN/1

  Site #2-

  6

  January 19, 2011

  15:24:47

  302020

  10.1.1.51

  0

  10.0.0.30

  1

  Built of outbound ICMP connection for faddr gaddr laddr 10.1.1.51/0 10.1.1.51/0 10.0.0.30/1

  6

  January 19, 2011

  15:24:49

  302021

  10.0.0.30

  1

  10.1.1.51

  0

  Connection of disassembly for faddr gaddr laddr 10.1.1.51/0 10.1.1.51/0 10.0.0.30/1 ICMP

  It's the same for any form of traffic passing over the tunnel.  The ACL is configured to allow segments of LAN out to any destination.  At this point, I left scratching my head, as my original theory was to blame the Draytek, but after reading the documentation given to the DMZ host configuration, it appears this parameter is configured all traffic is simply forwarded to the IP address (in this case, the Cisco ASA interface outside).

  Anyone can shed light on a possible cause of this problem?

  Thank you

  Nick

  did you bypass the vpn traffic between 10.0.0 and 10.1.1 to be NAT - ed on the two ASA?

  Please provide the following information

  -set up the tunnel

  -show the isa cry his

  -show the ipsec cry his

  -ping of the site 1 site 2 via tunnel

  -capture "crypto ipsec to show his" once again

  -ping from site 2 to 1 by the tunnel of the site

  -capture "crypto ipsec to show his" once again

  -two ASA configuration.

• 2 one-Site VPN Cisco 2801 and with crossing NAT

  Hi guys,.

  I would like to configure two Cisco 2801 using IPSEC/IKE. Both routers are connected to the internet through DSL lines. The DSL line have RFC1918 address side LAN where routers connected to the internet face. I can do NAT on DSL modems.

  Cisco IOS 2801 routers allow to configure site-2-site VPN with NAT crossing?

  Here is a model of physics/IP configuration:

  LAN<->2801 Modem DSL<-Internet->DSL modem<-Priv ip-=""> 2801<-Priv ip-=""><-> LAN

  Thank you

  Gonçalo

  Yes, you're good to go only if one or both of the sites has an IP address which is natted with private IP address statically. The implementation of IPSec on SRI NAT support in most crosses so that shouldn't be a concern

• How to establish a tunnel vpn ipsec using DNS with ASA 5505?

  Hello

  I m get a dynamic IP address public and what I m trying to do is establish a tunnnel remote vpn using IPSec, which I realize my provider but each time resets of sessions or ASA 5505 reset, I get a new public IP and I need to put the new IP address on the remote client, so I can establish the vpn...

  How can I establish a vpn ipsec using DNS?  For this scenario, the remote client vpn is a vpn phone, but it could be any vpn client.

  Private private Public IP IP IP

  PBX - Telephone (LAN) - ASA 5505-(Internet)-(router) Remote Site-(LAN) VPN-

  Kind regards!

  Ah ok I see, Yes in this case there is no that you can do other than request a static IP address from your ISP.

  Kind regards.

  PS: Don't forget to mark this question as answered. Thank you!

• Site to site VPN IPSec

  Hi all,

  Could someone tell me please if on the IPSec VPN (not GRE over IPSec) site to supported routing protocols?

  Thank you.

  Hello

  Well, a Site does not support multicast traffic.

  http://www.ietf.org/RFC/rfc2401.txt

  4.1 Definition and Scope    A Security Association (SA) is a simplex "connection" that affords    security services to the traffic carried by it.  Security services    are afforded to an SA by the use of AH, or ESP, but not both.  If    both AH and ESP protection is applied to a traffic stream, then two    (or more) SAs are created to afford protection to the traffic stream.    To secure typical, bi-directional communication between two hosts, or    between two security gateways, two Security Associations (one in each    direction) are required.    A security association is uniquely identified by a triple consisting    of a Security Parameter Index (SPI), an IP Destination Address, and a    security protocol (AH or ESP) identifier.  In principle, the    Destination Address may be a unicast address, an IP broadcast    address, or a multicast group address.  However, IPsec SA management    mechanisms currently are defined only for unicast SAs.

  The only possible mechanism is to use the GRE over IPSec.

  I hope this helps.

  Kind regards
  Abhishek Purohit
  CCIE-S-35269

• Site to site VPN (ASA-&gt; router IOS, with two interfaces) help

  Dear,

  I need help to configure VPN from Site to Site of cisco ASA to the IOS router, the router has 2 WAN links, a primary and secondary backup.

  There was only a single week of link there is, now we have installed the second link as a backup, we use OSPF as the routing protocol.

  VPN with simple link worked fine, now, when the main link fails the network is down.

  Waiting for response.

  There is an easy solution.  On the router, you must terminate the VPN on the loopback interface.

  something like this:

  interface lo0

  IP x.x.x.x where x.x.x.x

  card crypto-address lo0

  interface wan_1

  vpn crypto card

  interface wan_2

  vpn crypto card

  One condition is that the loopback interface has accessible by the device of the SAA.

• Installation of site to site VPN IPSec using PIX and ASA

  / * Style definitions * / table. MsoNormalTable {mso-style-name : « Table Normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 à 5.4pt 0 à 5.4pt ; mso-para-margin : 0 ; mso-para-marge-bottom : .0001pt ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ; mso-bidi-font-family : « Times New Roman » ; mso-bidi-theme-font : minor-bidi ;}

  I am a site configuration to site IPSec VPN using a PIX515E to site A and ASA5520 to Site B.

  I have attached the lab diagram. Consider PIX and ASA are in default configuration, which means that nothing is configured on both devices.

  According to the scheme

  ASA5520

  External interface is the level of security 11.11.10.1/248 0

  The inside interface is 172.16.9.2/24 security level 100

  Default route is 0.0.0.0 0.0.0.0 11.11.10.2 1

  PIX515E

  External interface is the level of security 123.123.10.2/248 0

  The inside interface is 172.16.10.1/24 security level 100

  Default route is 0.0.0.0 0.0.0.0 123.123.10.1 1

  / * Style definitions * / table. MsoNormalTable {mso-style-name : « Table Normal » ; mso-tstyle-rowband-taille : 0 ; mso-tstyle-colband-taille : 0 ; mso-style-noshow:yes ; mso-style-priorité : 99 ; mso-style-qformat:yes ; mso-style-parent : » « ;" mso-rembourrage-alt : 0 à 5.4pt 0 à 5.4pt ; mso-para-margin : 0 ; mso-para-marge-bottom : .0001pt ; mso-pagination : widow-orphelin ; police-taille : 11.0pt ; famille de police : « Calibri », « sans-serif » ; mso-ascii-font-family : Calibri ; mso-ascii-theme-font : minor-latin ; mso-fareast-font-family : « Times New Roman » ; mso-fareast-theme-font : minor-fareast ; mso-hansi-font-family : Calibri ; mso-hansi-theme-font : minor-latin ; mso-bidi-font-family : « Times New Roman » ; mso-bidi-theme-font : minor-bidi ;}

  Could someone tell me how to set up this configuration? I tried but didn't workout. Here is the IKE protocol I have used.

  IKE information:

  IKE Encrytion OF

  MD5 authentication method

  Diffie Helman Group 2

  Failure to life

  IPSEC information:

  IPsec encryption OF

  MD5 authentication method

  Failure to life

  Please enter the following command

  on asa

  Sysopt connection permit VPN

  on pix not sure of the syntax, I think it is

  Permitted connection ipsec sysopt

  What we are trying to do here is basically allowing vpn opening ports

  Alternatively you can open udp 500 and esp (or port ip 50) out to in on the two firewalls

• Where to buy Web site models suitable for use with Dreamweaver CS6

  I know that you can create models from zero easy enough once you get going, but I'm pressed for an existing site, evolved into a sensitive provision and lacked recommendations for sites to buy ready made templates that are designed for use in DWCS6

  Thank you

  This free fresh extension comes with Starter models.

• I can't create a new site of catalyst for business with Dreamweaver CC 2014. The error message states that Dreamweaver cannot connect with the server, try again later. How can I solve this problem?

  I can't create a new site of Business Catalyst with Dreamweaver CC 2014 (Mac). The error message states that Dreamweaver cannot connect with the server, try again later. In addition, I am also unable to load remote site Business Catalyst created previously as it says that there is something wrong with my user name or password. However when I put my password and press to test the connection, he said that it has connected successfully. What is wrong and how can I solve this problem?

  Thank you

  Thanks for the reply, however it seems to work again after I removed some unused Dreamweaver sites in the section "manage sites" in Dreamweaver.  It may have been a conflict of name or something.

  Concerning

  Adrian

• VPN ipsec for sonicwall several VLANS

  I have 5510 8.3 running

  have you a site to the configuration via Wizard... can ' tping anything

  I have a setup of vpn sonicwall on the other site.

  SonicWALL both cisco say there is a link and I see the active connection in the newspapers. However, cannot ping anything.

  I have 41.0 and 42.0 on the side of cisco

  I'm on the side of sonicwall 24.0 and 25.0 (among other VLAN)

  I have installation as objects of cisco. I think the nats right and I place in the wizard to access these networks.

  my current config running is attached. thoughts?

  Try adding the inspection for icmp:

  Policy-map global_policy
  class inspection_default

  inspect the icmp

  If it still does not work, please send us the output of the following to see where it is a failure:

  See the isa scream his

  See the ipsec scream his

• 887VDSL2 IPSec site to site vpn does NOT use the easy vpn

  Much of community support.

  as I'm looking through the config Guide about 870 router series, only to find information about the config with eazy vpn.

  is there a classic way, about 870 Series site 2 site without eazy vpn IPSec configuration?

  Have a classic way if a tunnel? Have the 870 is not as a vpn client?

  Thank you

  Of course, here's example of Site to Site VPN configuration for your reference:

  http://www.Cisco.com/en/us/Tech/tk583/TK372/technologies_configuration_example09186a0080194650.shtml

  http://www.Cisco.com/en/us/products/HW/routers/ps221/products_configuration_example09186a008073e078.shtml

  Hope that helps.

• EIGRP via IPSec site to site VPN

  having trouble getting to work through an IOS EIGRP (2ea. 2811 s) connection of the site to site VPN IPSec peer.  IPSec VPN works with route directions static tunnel.  By using the IPSec policy basis and VTI interface:

  crypto ISAKMP policy 1

  preshared authentication

  Group 2

  ISAKMP crypto key "" address 192.168.x.66

  !

  Crypto ipsec transform-set esp-3des esp-sha-hmac vpn

  Crypto ipsec df - game

  !

  static-crypt 6 map ipsec-isakmp crypto

  the value of 192.168.x.66 peer

  Set transform-set vpn

  match address 101

  !

  tunnel1 interface

  IP address 1xx.33.20.226 255.255.255.252

  no ip redirection

  IP 1400 MTU

  IP tcp adjust-mss 1360

  QoS before filing

  source of tunnel FastEthernet 0/0

  destination 192.168.x.66 tunnel

  crypto static crypto map

  !

  interface FastEthernet 0/0

  Add an IP...

  crypto static crypto map

  !

  Router eigrp 10

  passive-interface default

  no passive-interface FastEthernet 0/1

  no passive-interface Tunnel1

  network...

  network...

  No Auto-resume

  !

  IP route 0.0.0.0 0.0.0.0 Tunnel1

  IP route 0.0.0.0 0.0.0.0 146.33.20.225<-- peer's="" default-gateway="" is="" vpn="" peer="" router="" on="" other="" side="" of="" satelite="">

  must be something simple, but I can't.

  Thank you, kevin

  Unfamiliar with the VTI, but I think you are missing:

  ipv4 ipsec tunnel mode

  Profile of tunnel ipsec protection

  Also don't think that you need crypto card in the tunnel because it is already on fa0/0.  What looks like the access-list 101? Take a look at this doc:

  http://www.ciscosystems.com/en/us/docs/iOS/12_3t/12_3t14/feature/guide/gtIPSctm.html