THROUGH NAT

Similar Questions

• VPN through NAT

  Hello

  I configured a PIX (6.3) for (4.0.2) VPN clients. When I try to connect using a dial-up connection, I am able to connect, but using a NAT (through a router) I stay connected but cannot access all the servers. It shows the decryption of zero packets.

  Is their something I need to do on PIX? I'm using IPSEC.

  Help, please.

  NAT, or more precisely of PAT, will usually break an IPSec connection. Fortunately, there is a new standard called NAT - T that has each end detect that they are going through a NAT/PAT device, and if so, they'll wrap everything in UDP packets, which can then be NAT correctly.

  The customer has of this feature is automatically enabled. On the PIX to put on with the command:

  > isakmp nat-traversal

  See http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_sw/v_63/cmdref/gl.htm#1027312 for more details.

• Easy VPN through nat

  Is there a trick to allow users to connect to a vpn server easy through their router domestic (dlink with nat, IE).

  There must be a way with cisco. I know it's possible with other software I've used.

  Thank you

  Dan

  Yes, for an outgoing connection from your dlink vpn client, it should be ok.

  If you have configured on your dlink firewall, this is where you need to allow UDP/500 and UDP/4500 out.

• RA - VPN through NAT - T troubleshooting

  Hello

  Currently, my vpn works great from the outside to the router. The problem, I'm not sure why the traffic inside is not finding its way to the outside (VPNclient). I tried to add interesting traffic acl on my DynamicMap, the vpn client lock did not close, but there is a created isakmp QM_IDLE session and an IPSEC tunnel. I also tried to add a static route on all my local routers (for test only) 10.0.12.0 to my router vpn 10.0.0.188 network routing, only my network device can communicate with my VPN client host when I do this, but the hosts that are part of the network cannot communicate.

  I have attached config and debug outputs.

  Any suggestions?

  TIA,

  -Fred

  Hello

  Can u please no nat acl, lan internal as source and as destination pool vpn.

  Make sure that your gw router has a route to the pool of vpn.

  r/g

• Cannot ping CentOS 6.4 invited Windows 7 host through NAT

  Hello

  I am running VMware Workstation 9.02 on Windows 7 (64 bit) with customers running CentOS (also 64 bit) 6.4, using NAT networking.

  Everything worked fine, but suddenly I can reach is no longer the guest computers CentOS network NAT. Ping the address of the guest PC from the command-line on the host computer Windows 7 fails with a 'Request timed.' error out. However, the guest operating system still seems to be able to connect to the Internet (i.e. Ping google.com from a command-line in the CentOS prompt seems to have reached the site).

  I don't know what has changed in the State of the Windows host. I tried to re-setup of VMware, but nothing seems to restore connectivity between a Windows host and the guest of CentOS operating system. Can anyone suggest what could be bad, or how I can start to debug the loss of connectivity on the side Windows?

  I'm using a Kaspersky firewall on the Windows 7 host, but it never prevented connectivity with VMware customers before.

  Thank you

  Tony

  If the virtual machine has a network/Internet connectivity so I doubt it is a matter of VMware itself and it is most likely a firewall issue.  Check and make sure that all firewalls do not block ICMP (ping) echo requests on the host and the guest.

• Obtain the Cisco VPN to work through NAT (guest OS Windows xp)

  Dear experts,

  For some strange reason I got this job, updated for VMware player 3 and now it doesn't work anymore. I downgraded VMware player 2.5.1 version again, but no dice.

  For intimate them with this VPN, I can enter my username and password, but then nothing happens when it begins to negotiate secure channel.

  I'm stuck now essentially.

  Any help is greatly appreciated!

  See you soon,.

  Jeroen

  I have no success on this. You can try to upgrade your cisco client. Check the following KB: http://kb.vmware.com/kb/1445

  Marcelo Soares

  VMWare Certified Professional 310/410

  Master virtualization technology

  Globant Argentina

  Review the allocation of points for "useful" or "right" answers.

• missing feature or bug? -Video NetGroup is not through any firewall/NAT

  I'm developing an application based on video of NetGroup. I observed following

  -Without any NAT/firewall - "NetGroup.post" and audio/video works

  -A single client inside NAT/firewall - works of "NetGroup.post", video and audio DOES NOT work

  -Once manually drill through NAT/firewall (non-application), audio and video has started working. As soon as the hole was closed, both audio and video stops again.

  It seems that NetGroup P2P connections are not perforation of NAT/firewall. If someone from adobe can confirm it's true (or not true). If true, this is a known problem, going to be fixed soon? If this isn't the case, I might have to implement a hole punching algorithm in my application.

  Information / help is appreciated.

  RTMFP groups don't traversal of NAT/firewall.  the underlying connections between peers are RTMFP sessions.

  NetGroup.post and P2P multicast use exactly the same RTMFP sessions between peers.  It is not possible that NetGroup.post could work but P2P multicast audio and video would not work in the same peer group of same.

  When you say "manually punching holes in NAT/firewall", what do you mean exactly?  the ports used by clients RTMFP is random by NetConnection instance and cannot be predicted.  you block UDP with a firewall, configure you redirection port through of your NAT or you have disabled your NAT entirely?

  GroupSpecifier what are the parameters that you use for the case where NetGroup.post works for you?  What about the NetStream where P2P multicast does not work?  is this the same group?

• Win2K NAT would be from 1650 to a PIX 515 - does not

  Hello

  :

  I have a working VPN config on my 515 (6.2.2) and can tunnel from one host with a valid external IP without any problem. But, with a NAT would be customer, nothing seems to work.

  I use RADIUS to authenticate after using a password for the group. Here is the sequence of events.

  (1) client machine as a 10.0.0.1 address, NAT had a public address to come into the port of 'outside '.

  (2) the client connects, the user enters GANYMEDE password and is connected.

  (3) the user tries to browse any service and can not.

  (4) if the user switches DNS to an external server, the portion of the split tunnel internet works fine but inside is still broken.

  (5) clients with static IP addresses that are publicly routable connect and can perform all internal and external activities of split tunnel.

  Excerpts from config. I'm doing something wrong?

  Permitted connection ipsec sysopt

  No sysopt route dnat

  Crypto ipsec transform-set esp - esp-md5-hmac noaset

  Crypto dynnoamap dynamic-map 10 transform-set noaset

  noamap 10 card crypto ipsec-isakmp dynamic dynnoamap

  Harpy of authentication card crypto client noamap

  noamap interface card crypto outside

  ISAKMP allows outside

  ISAKMP identity address

  part of pre authentication ISAKMP policy 10

  encryption of ISAKMP policy 10

  ISAKMP policy 10 md5 hash

  10 2 ISAKMP policy group

  ISAKMP life duration strategy 10 86400

  vpngroup address noapool pool noagroup

  vpngroup dns 66.119.192.1 Server noagroup

  vpngroup noagroup wins server - 66.119.192.4

  vpngroup noagroup by default-field noanet.net

  vpngroup split-tunnel vpn - IP noagroup

  vpngroup idle 3600 noagroup-time

  vpngroup password noagroup *.

  Help and thanks in advance.

  Mike

  You do not have something wrong. The problem is that NAT (NAT actually PAT, port) and IPSec is not working very well, and many features PAT can PAT IPSec traffic to all (PIX included until version 6.3).

  The problem is that PAT depends on using the port number TCP or UDP source as a way to differentiate between sessions, because they are all PAT would be from the same source IP address. However IPSec (ESP at least), tracks right on top of IP, in other words, it is NOT a TCP or UDP protocol, and therefore has no associated port number. It breaks most of the PAT devices.

  The reason for which you can build your tunnel initially, it is that it is all done by ISAKMP, which is a UDP protocol, which can be PAT would be fine. Once the tunnel is built however, all encrypted data are sent by packs of ESP, which as I said, is not a TCP or UDP protocol.

  Trnalsations NAT static work cause they do not rely on the use of the port number, they just change the address of the source that works very well with ESP.

  There is not much you can do about it. If you were closing the VPN into a VPN3000 concentrator, it has a feature called IPSec through NAT, which encapsulates all ESP packets in a UDP packet, which can then be PAT would be properly. The PIX, unfortunately, doesn't have this feature. The only solution is to get a NAT device that manages properly the IPSEc. Surprisingly, some of the less expensive devices on the market handle it, but you should check with each manufacturer to be sure.

• Console remote vCenter access (NAT problem)?

  Hello world

  I have problems accessing my VMRC via vCenter WebClient.

  My network config is as described in the title:

  my office LAN (say 192.168.1.50)-> firewall-> my server room (say 10.1.1.0/24).

  the ESX and vCenter are in the server room.

  To access the server room,'s done it through NAT (IE to access my true IP vCenter 10.1.1.10 I access from my desktop to 200.1.1.10).

  When I access the remote console hollow vSphere Client (so connecting directly to ESX without using vCenter) works (the console log shows that I connect to the NAT address).

  When I want to access a remote console trough the web interface, the console to it log shows tries to reach the REAL of ESX instead of the NAT one address.

  I hope that I was enough to get a clear answer

  Is - this repairable or y at - it a parameter that escapes me in vCenter to make this setup work (I did research all morning without finding a clue).

  Thanks in advance and forgive my approximate English.

  I finally find myself...

  I assumed that, as a result of posting here makes me think differently!

  Solution: Add the host whose DNS name in vCenter instead of IP addresses, then the VM consoles work properly.

• The Cisco AnyConnect VPN connection host bridge/NAT comments

  I think I know the answer to that, but I hope I'm wrong. I have 9 Workstation on a Windows 7 laptop, and I wonder if it is possible to get my guest VM (Windows and non-Windows (if it matters)) to have access to my VPN connection when I am connected. Preferably through NAT, if it is then connected by a bridge. I found this post where the poster indicates that you can deselect 'connect the adapter to the virtual host' and he's got to work, but this does not work for me, unless I'm missing something or it depends on the type of VPN connection or installation. I read that you can not address IPSec VPN, but I don't know what type I'm sure I can't say the AnyConnect client.

  Thank you
  Brian

  By default the anyconnect software won't allow all connections to the VPN tunnel. So once the connection is established you can not connect to the host on the local network more.

  If you do a 'route print' on the host before and after the VPN connection is established, you will find that the VPN connection has set the parameter WOG network for the lowest value which makes the default and sets a mask that blocks all other connections. You can remove the mask route to access the host on the local network, but you will not get a direct connection to the virtual machine VPN tunnel.

  If you search the forum here for VPN, you can find a post about this.

• How to open ICMP?

  Hello.

  I¨ve I have a linksys (Sisco) to E3000 router, but some problem with ICMP. I know because I can't access the ports I open LAN pos. as part of the NAT I run an FTP server and a windows Server 2008 with my own Web home page.

  Anyone who knows how to set up on the router. Cannot find this setting even with the ping on that function. It should be possible to start/stop.

  Best regards, BBJ

  Try the "Filter Internet NAT Redirection" option.

  If this does not work for you there is no way to test the port shipments inside your LAN simply because you can not send a packet to the WAN port on back. Especially packets coming from the side of the router LAN of don't go through NAT...

  You can only try general port checking tools, based on the web in the internet.

• NSA SSLVPN Port 443

  Is it possible, even through NAT for SSLVPN running on port 443?  Many networks these days are strict and didn't allow that 80/443 out (sometimes 53 if they allow direct DNS).  SSLVPN running on a non-standard port is not the greatest option for us.

  The only way to do it would be if you change your management other than 443 HTTPS port. By default, your management HTTPS port use this port number.

  #Iwork4Dell

• "Administrator has disabled Teredo locally.

  I think I have tried everything that has been recommended here. My two computers running Windows 7 proffessional. All the appropriate boxes have been checked under IPv6 protocols. However, I got some problems when uninstalling/reinstalling IPv6 protocols. When he asked me for the location of the *.inf file I didn't know where to look. On the Windows disc or my my motherboard drivers disc. Needless to say, he could not be found on a disk you know the location of this file? I uninstalled the network adapters in the Device Manager on both computers and rebooted and everything was reinstalled but still the "Teredo thing." So, I'm at an impasse. Win 7 was supposed to make things easier to present this was not the case. In this era of networking should be obvious with the advent of online multimedia. I've always taken in charge of Microsoft, but I wonder if I would have taken my brothers advice and got a Mac. This shouldn't be too difficult as. Any help would be appreciated. Thank you.

  Hi Sledrace,

  one) is that the computer is connected to a domain?
  (b) have you connected to the user administrator account?

  Teredo is a tunneling protocol designed to grant IPv6 connectivity to nodes that are located behind IPv6 NAT (network address translation) not compatible devices. It defines a way of encapsulating IPv6 packets in IPv4 UDP (User Datagram Protocol) datagrams can be routed through NAT devices, on the IPv4 internet.

  You will most likely activate IPv6 and check.
   
  Method 1:
   
  To turn on IPv6:
  1. go into your control panel network connections and
  2. go in the Properties menu for the connection that you want to config.
  3. it will probably be just the connection to the Local network.
  4 check the box indicating "Microsoft TCP/IP Version 6".
  5. If you do not have this option, click on the 'install' button, choose the protocols and install it.
  6. This will allow the teredo tunnel so it can create a tunnel through v4.

  Disable IPv6:

  Try to uninstall IPv6 on all interfaces. To remove the IPv6

  1 click Start and type network and sharing Center

  2. Select Local network

  3 go to the properties for each network adapter

  4 deselect the box next to the Protocol "Protocol version 6 (TCP/IPv6) Internet, which will disable, or select it and click on uninstall, which will remove off the computer.»

  5 restart your computer

  NOTE: You should do this for each network connection.

  During the installation of the IPV6 if its request for the location, then navigate to c:\windows\inf and see if it installs the driver.

  Method 2:
  If any third-party antivirus is installed, try disabling the same and check if that helps. If you are able to join the Working Group, then you will need to uninstall and reinstall the software.
   
  Method 3:
  Change TCP/IP settings. Follow the steps listed in the link below: change TCP/IP settings: http://windows.microsoft.com/en-US/windows7/Change-TCP-IP-settings

  Thank you, and in what concerns:
  Shalini Surana - Microsoft technical support.
  Visit our Microsoft answers feedback Forumand let us know what you think.

• 2 problems and solution does not set

  I have problems with 2 upcoming programs on my device:

  Microsoft WPD Enhanced storage goes into car and Microsoft Teredo Tunneling adapter: two which I don't know how they work and the two make their appearance with an unknown problem. I have a dell system and run on Windows 7. Is their a way to remove and reinstall the programs?

  Hello Ashley,.

  Thanks for posting your query in Microsoft Community.

  I understand that you have problems with the drivers mentioned above, which appears with an unknown problem. We are happy to help you in the matter of fixing.

  I would like to know some more information on this issue to help you better.

  1. What exactly do you mean, when you say "the two are appearing with an unknown problem"? You get the error message? If so, please provide the same.
  2. When you get this error message?

  In the meantime, please follow the suggestions listed below to learn more on the subject.

  Enhanced disk storage of password in Microsoft Windows Portable Devices (WPD) allows a computer communicate with the attached and devices on storage media. This system replaces the Device Manager Windows Media (WMDM) and Windows Image Acquisition (WIA) by providing a flexible and robust way for a computer to communicate with the readers of music, storage devices, mobile phones and many other types of connected devices.

  Teredo"is a tunneling protocol designed to grant IPv6 connectivity to nodes that are located behind IPv6 NAT (network address translation) not compatible devices. It defines a way of encapsulating IPv6 packets in IPv4 UDP (User Datagram Protocol) datagrams can be routed through NAT devices, on the IPv4 internet.

  Please write us back required information and we will be happy to help you come.

• enable teredo, IPv6

  How can U activate IPv6 and teredo locally so that I can connect with my homegroup

  Hi a1a92492,

  ·        Have you connected to the user administrator account?

  Teredo is a tunneling protocol designed to grant IPv6 connectivity to nodes that are located behind IPv6 NAT (network address translation) not compatible devices. It defines a way of encapsulating IPv6 packets in IPv4 UDP (User Datagram Protocol) datagrams can be routed through NAT devices, on the IPv4 internet.

  To turn on IPv6:

  1. right click on the network icon.

  2. Select Open the network and sharing Center.

  3. in the window that appears, select "change the map settings.

  4. in the network connections window, select the 'connection to the Local network", then"change settings of this connection"or right click-> properties.

  5. in the connection properties page, check the box 'Protocol Version 6 (TCP/IPv6) Internet'.

  6. This will allow the teredo tunnel so it can create a tunnel through v4.

  Kind regards

  Sandeep

  Microsoft Answers Support Engineer