VPN IPSec with no. - Nat and Nat - No.

Similar Questions

• IOS router VPN Client (easy VPN) IPsec with Anyconnect

  Hello

  I would like to set up my router IOS IPsec VPN Client and connect with any connect.
  Is it possible to configure an IPSec and SSL VPN Client on IOS router? I use for example a 1841.

  It would be perfect to give the user the choice of SSL or IPSec protocol. And the user needs that the Anyconnect Client.

  I think it's possible with a Cisco ASA. But I can also do this with an IOS router?

  Please let me know how if this is possible.

  Also is it true that the IOS routers are not affected to hear bug bleed? SSL VPN and SSL VPN with Anyconnect page is also save?

  http://Tools.Cisco.com/Security/Center/content/CiscoSecurityAdvisory/CIS...

  But I am in any way interested in using IPSec and SSL VPN on a router IOS...

  It's true - CCP does not yet offer the options to configure a VPN IPsec with IKEv2.

  The configuration guide (here) offers detailed advice and includes examples of configuration.

• VPN Ipsec with Fortinet

  can someone show me a vpn ipsec with other vendors Cisco router VPN link to? i.e. www.fortinet.com. Thank you very much.

  Go to the following URL...

  1 Fortigate to Cisco

  'http://kc.forticare.com/default.asp?id=229&Lang=1'.

  2 W2K for Cisco

  'http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00800b12b5.shtml'.

  3 control point for Cisco

  'http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a0080094ac4.shtml'.

  4 Netscreen to Cisco

  'http://www.cisco.com/en/US/tech/tk583/tk372/technologies_configuration_example09186a00801c4445.shtml'.

• Problem creating a VPN IPSec with SRP527W

  Hello.

  I have a Setup like this:

  192.168.15.0/24 SRP527W <->internet <->ROUTER [172.16.16.1] <1:1 nat="">pfSense (raccoon vpn server) [172.16.16.2] 192.168.55.0/24

  I set up a VPN between the SRP and pfsense connection but the connection is not established because that timeout of the phase 1. According to racoon on the remote side does not.

  Before that, I've properly established a VPN between the SRP and another box of pfsense, but with a public IP address. The same host, I have an another vpn to the pfsense box (172.16.16.1) works correctly.

  These parameters of the PRS:

  IKE policy:

  Exchange mode: aggressive

  Permit ID: manual

  Remote ID: 172.16.16.2

  Encryption: 3DES

  Authentication: MD5

  DH: Group 2

  PSK: mysharedkey

  DPD: disabled

  IPSec policy:

  Policy type: police car

  Remote end point: IP ADDRESS

  IP: 172.16.16.2

  Life expectancy: 7800

  Set local subnet and remote according to the above (192.168.x.x) Network Setup.

  How can I check what is the problem? I struggled for several hours now and have failed to go out again! Any help really welcome!

  Thank you

  Lorenzo,

  The router to 172.16.16.1 allows all traffic to the pfsense VPN server when specific NAT is enabled or you have create access rules? My guess is that the router is blocking the traffic.

  -Marty

• need help with VPN IPSEC with RV042

  https://supportforums.Cisco.com/docs/doc-30883

  I enjoy any support for a trial with RV042 VPN IPSec game please.

  Thanks in advance.

  Hi Bay, if you use a Windows computer, you can use QuickVPN. The only thing to note is the router that you have as the gateway to the RV042. You must define a port forward for all IPsec services be able to overcome the problems with the NAT device.

  RV042 configuration is easy, create a name of user and password and that's it. The problem/challenge will get your NAT connection to allow VPN pass.

  -Tom
  Please mark replied messages useful

• VPN IPSec L2L between IOS and PIX 6.3 - MTU issue?

  The side of the remote control (customer) is behind the 6.3 (5) PIX. And the side of the head end (server) is 2911 IOS on 15.0.

  The IPSec tunnel rises very well and passes traffic. However, there is a server which are not fully accessible. Note, it is mainly the web traffic.

  Client initiates a connection to the http://server:8000. They receive a redirect to go to http://server:8000 / somepage.jspa. Package caps show the customer acknowledges the redirect with a SYN - ACK response, but then the connection just hangs. And no other packets are received in return. I noticed that the redirected page is a .jsp and other pages that work OK are not. I also noticed that some MTU and TCP MSS configurations on the side of the head that are in place for another GRE VPN tunnel with another site. So I got in the way of the fragmentation of packets. The side PIX has all the standard configurations of IPSec as well as default MTU on the interface of the inside and outside.

  When the MTU is set manually on the client computer to 1400, the access to the works of http://server:8000 / somepage.jspa very well. So I need to tweak the settings of PIX. I tried to adjust the MTU size on and abroad the interface as well as the parameter "sysopt connection tcp - mss. I don't know what else to do here.

  Here is a summary of the MTU settings on the head of line:

  End of the head:

  int tunnel0 (it's the GRE tunnel)

  IP mtu 1420

  source of tunnel G0/0

  dest X.X.X.X

  tunnel path-mtu-discovery

  card crypto vpn 1

  tunnel GRE Description

  blah blah blah

  card crypto vpn 2

  Description IPSec tunnel

  blah blah blah

  int g0/0 (external interface)

  no ip redirection

  no ip unreachable

  no ip proxy-arp

  Check IP unicast reverse

  NAT outside IP

  IP virtual-reassembly

  vpn crypto card

  int g0/1 (this is the interface to the server in question)

  no ip redirection

  no ip unreachable

  no ip proxy-arp

  IP nat inside

  IP virtual-reassembly

  IP tcp adjust-mss 1452

  HA, sorry my bad. Read the previous post wrong.

  (Note: Yes, the SMS on the tunnel interface should be 40 bytes less than MTU).

  Do not twist the MTU, not for TCP problems (not as the first step), it is safer to play with the MSS. MTU may depend on other things (OSPF for example).

  Make a sweep of a ping with DF bit set with the size (from 1300 bytes for example). By doing this, you want to check what is the maximum size of the package, which you can test through the IPsec tunnel. Once you have this value consider - subtract 40 and this defined as value MSS of the LAN interface (and adjust the value of PIX if you can).

  M.

• GRE with VPN IPSec with OSPF

  Gents,

  This is my first post ever here, on this platform, I have a problem to Setup GRE tunnel with IPSEC with OSPF tunnel... I have 2 sites connected to my HQ (Media is VSAT). I want all the encriptación data + Multicast Ospf enabled...

  Can I do it with DWVPN using SDM - I did a single document to this topic but its all about IEGRP OSPF not...

  Anyone please help me with this problem... If anyone NEED any other information please update me... I'll be happy to do...

  Thanking you in anticipation.

  Tabuk router is misconfigured:

  defined by peer 172.31.111.93

  This should be

  defined by peer 172.31.111.97

  Concerning

  Farrukh

• VPN IPsec with NAT

  ASA5510, 8.0.x

  I need to set up a VPN from Site to Site (L2L) in a remote location.

  The remote IT consultant asks me NOT to go out with my real (pulbic), IP address, but translated to a single IP address.

  From my side, I have a 24 network, on the remote site, I have to reach only 4 IP addresses.

  The VPN is one way only: I need to reach their servers, but not vice versa.

  I tried to follow the document ID-99122 (http://www.cisco.com/en/US/partner/products/hw/vpndevc/ps2030/products_configuration_example09186a00808c9950.shtml), but it seems not to work with a static NAT to a translated 24 on a single IP address.

  I tried to ask them to allow me to NAT a 24, but they disagree.

  Any solution?

  Kind regards

  Claudio

  Hello

  If I understand, you want to translate your 24 network to IP address dynamic PAT unique when contacting the remote site only via VPN L2L.

  For this, you can try to use the PAT political dynamics

  access-list L2LVPN - POLICYNAT note define traffic for the political dynamics for VPN L2L PAT

  L2LVPN-POLICYNAT ip 10.10.10.0 access list allow 255.255.255.0 host 1.1.1.1

  L2LVPN-POLICYNAT ip 10.10.10.0 access list allow 255.255.255.0 host 1.1.1.2

  L2LVPN-POLICYNAT ip 10.10.10.0 access list allow 255.255.255.0 host 1.1.1.3

  L2LVPN-POLICYNAT ip 10.10.10.0 access list allow 255.255.255.0 host 1.1.1.4

  Global 200 (outside)

  NAT (inside) 200 access-list L2LVPN-POLICYNAT

  Also of course your L2L Crypto VPN ACL map should look like this

  access-list L2LVPN-CRYPTOMAP Note set encryption to connect VPN L2L domain

  access-list L2LVPN-CRYPTOMAP allowed ip 1.1.1.1 host

  access-list L2LVPN-CRYPTOMAP allowed IP host 1.1.1.2

  access-list L2LVPN-CRYPTOMAP allowed IP host 1.1.1.3

  access-list L2LVPN-CRYPTOMAP allowed IP host 1.1.1.4

  crypto card matches the address L2LVPN-CRYPTOMAP

  Where

  • 10.10.10.0/24 = is your souce LAN network
  • 1.1.1.1 - 4 = are the remote end 4 hosts, you must contact by the VPN L2L
  • PAT = IP is the IP address assigned by the remote end to be used with VPN L2L

  Hope this helps

  EDIT: Copy/paste strikes again. I had both the ACL with the same name. Which corrected.

  -Jouni

• Quick VPN compatibility with Windows 7 and Windows 7 VPN configuration connection.

  Cisco VPN fast compatible with Windows 7 or not? I have studied several documents that claim their fix works, but not of that actually work. I do not understand how fast VPN installs without problem and connects all the way up to the "check network". Win7 must have some problems with the way it treats an echo request because non of the suggestions work online. It may also not be a problem of firewall because that when the firewall is off the same problem occurs.

  Another question the utility of VPN in Windows 7 will work with Cisco VPN routers? What are the requirements of compatibility or the settings to make it work?

  Any specific comments would be appreciated.

  Hey,.

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

  http://social.technet.Microsoft.com/forums/en-us/w7itpronetworking/threads

  For your reference:

  http://TechNet.Microsoft.com/en-us/network/bb545442

  http://TechNet.Microsoft.com/en-us/library/dd787668 (WS.10) .aspx

  Kind regards

  Savan - Microsoft technical support.

• The filtering of the VPN 3000 with multiple businesses and internet access?

  Hello

  We have a scenario where we want to up to 6 companies to connect to a concentrator 3000 3002 HW-customers. Companies should be able to have access to the e a few machines at the central site and and at the same time having access to the internet. We will use network extension mode. They cannot use the PIN-tunnel and we want that all internet traffic through the central site.

  Anyone who think that using the 3000 for this "filtering" is a good idea or should I use an external router routing policies?

  I use the 3000 to complete tunnels and parallel with your corporate firewall. Set the default gateway of Tunnel on the 3000 to be inside the IP address of the firewall and add a static route on the 3000 to your internal network, pointing to your next hop router. Add static routes on your firewall for remote VPN network pointing inside the VPN3000 IP address. This way no matter what VPN traffic that is destined for your interior, network will go to your home router and nothing else (Internet traffic), will go to your firewall and get routed Internet.

  As to where you place the filters, you could put them either on the 3000, but personally I do not like the filter - rule in 3000 stuff too. I would put a list of access on your router (who carry static electricity pointing towards) which allows specific remote networks simply get to the individual inside the hosts and nothing else, it's a lot easier to manage.

• IPSEC with the router and asa 5510

  Hi all

  I have problems connecting ipsec l2l. I have set up a router and asa 5510 make ipsec between them, but it seems to fail on the phase 1. I already check and I am 100% sure that is the key. You can a few shed light on the issue, I have. Here's the output debug I get the two system.

  Thank you

  Hello

  Isakmp policy match on both devices? What version of ios is running on the router and the asa5510

  Thank you

• 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

• 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

• VPN IPSec running but you have to configure the NAT

  I just established an IPsec VPN with one of our prividers, the EEG established VPN but the addresses in my LAN IP is in conflict with a device in my side suppliers. I am trying to configure NAT in order to avoid the conflict, but I'm naïve markets do.

  This is part of my current configuration

  the customer_outside object-group network

  network-object X.X.X.X 255.255.255.248

  the customer_inside object-group network

  network-object 192.168.1.210 255.255.255.255

  network-object 192.168.1.25-> conflict IP 255.255.255.255

  network-object 192.168.1.38 255.255.255.255

  customer_acl list extended access permitted ip object-group customer_outside-group of objects customer_inside

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

  card crypto client 10 correspondence address customer_acl

  client card crypto set 10 peers Y.Y.Y.Y

  card crypto client 10 transform-set customer_ts

  3600 seconds, duration of life card crypto client 10 set - the security association

  customer interface card crypto outside

  crypto ISAKMP policy 10

  preshared authentication

  3des encryption

  sha hash

  Group 2

  life 86400

  tunnel-group Y.Y.Y.Y type ipsec-l2l

  tunnel-group ipsec-attributes Y.Y.Y.Y

  pre-shared-key *.

  Thanks for your help.

  Hello Rafael,.

  You can do it with a nat policy:

  The host ip X.X.X.X 255.255.255.248 192.168.1.25 allowed access list TEST

  public static 192.168.20.25 (inside, outside) TEST of the access list.

  As nat goes first cryptography for VPN traffic, you'll need to include in the list of ACL of Crypto traffic from natted ip address (in this case 192.168.20.25).

  Kind regards

  Note all useful posts

  Julio

  Safety engineer

• IPsec VPN with Cisco AnyConnect and 1921 ISR G2 router

  Hello

  Is it possible to establish a remote access VPN IPSec using Cisco Anyconnect client with router Cisco ISR G2 1921.

  If someone does share it please the sample configuration. as I've been on this topic since last week a.

  My Cisco rep recommended I have not try AnyConnect a router ISR or ASR.  So I used an Open Source client.  Don't say that AnyConnect won't work, just the route I took on my project.  I work good known configuration for a 1921 with strongSwan as a Client.  It is with IPSEC and IKEV2 using certificates for authentication.