Configure vpn client windows server 2003

Click Next when you're ready. There are two ways that you can connect to your workplace— 1 dial-up; or 2 VPN. For this step, select the Virtual Private Network connection option and click the Next button. The next step of the wizard asks you to name the new connection.

You can use just about anything you want here since this just helps to keep track of what's what on your client machine. A name is useful if you have more than one VPN connection to manage. The next step of the wizard asks you to decide which users should be able to use this new connection. Do you want it available for just the use of the currently logged in user, or should it be available for any user? Keep in mind that, even if a connection is available to a logged in user that you don't want connected to the VPN, user must still provide valid credentials to actually attach to the VPN services.

For this example, I've enabled the VPN connection for my use only. Finally, you're finished creating the initial connection, as evidenced by a screen that looks like the one shown in Figure F.

Click Finish. The Network Connection Wizard just creates the initial connection with common parameters. Now that it's created, you need to make modifications based on your environment.

In particular, I've often run into trouble with Network Connection Wizard-created VPN connections' default gateway setting—more on that in a bit. As soon as you're done with the Network Connection Wizard, the new connection pops up so that you can connect to the remote VPN server.

The example, shown below in Figure G , contains the username and password, which I provided. Before you hit the Connect button, take a little time to adjust the client settings. To do so, click the Properties button. I will go through most of the screens, and provide explanation where I recommend that you change the default settings.

There isn't much to change here, except if you need to change the name or IP address of the server to which you will connect. You can also configure this connection to dial a different connection before attempting to connect to the VPN.

This is useful for clients that need to establish a dial-up connection before connecting to the VPN as it reduces the number of steps the remote user must take to attach to your server. Also located on this tab is a checkbox that enables the network adapter icon to appear in the system tray whenever this connection is active.

Short version: You don't need to make changes here if you provided all of the necessary information during the wizard. The Options tab provides choices for how to handle the initial connection and any subsequent redial attempts. The word "dial" on this screen is a little misleading since the options aren't strictly for modem-only users.

On this screen, you can dictate whether the system should provide you with information about the connection status and how user names, passwords and domain names should be handled. For the connection to be established, the settings of the connection attempt must:. For more information about an introduction to remote access policies, and how to accept a connection attempt, see the Windows Server Help and Support Center. Cause : The settings of the remote access policy profile are in conflict with properties of the VPN server.

The properties of the remote access policy profile and the properties of the VPN server both contain settings for:. If the settings of the profile of the matching remote access policy are in conflict with the settings of the VPN server, the connection attempt is rejected.

Solution : Verify that the settings of the remote access policy profile aren't in conflict with properties of the VPN server. Cause : The answering router can't validate the credentials of the calling router user name, password, and domain name. Solution : Verify that the credentials of the VPN client user name, password, and domain name are correct and can be validated by the VPN server.

Solution : If the VPN server is configured with a static IP address pool, verify that there are enough addresses in the pool. If all of the addresses in the static pool have been allocated to connected VPN clients, the VPN server can't allocate an IP address, and the connection attempt is rejected.

If all of the addresses in the static pool have been allocated, modify the pool. Solution : Verify the configuration of the authentication provider. Solution : For a VPN server that is a member server in a mixed-mode or native-mode Windows Server domain that is configured for Windows Server authentication, verify that:. If not, create the group and set the group type to Security and the group scope to Domain local. You can use the netsh ras show registeredserver command to view the current registration.

You can use the netsh ras add registeredserver command to register the server in a specified domain. To immediately effect this change, restart the VPN server computer. For more information about how to add a group, how to verify permissions for the RAS and IAS security group, and about netsh commands for remote access, see the Windows Server Help and Support Center. If not, type the following command at a command prompt on a domain controller computer, and then restart the domain controller computer:.

For more information about Windows NT 4. For more information about how to add a packet filter, see the Windows Server Help and Support Center.

Cause : The appropriate demand-dial interface hasn't been added to the protocol being routed. Solution : Add the appropriate demand-dial interface to the protocol being routed. For more information about how to add a routing interface, see the Windows Server Help and Support Center.

Cause : There are no routes on both sides of the router-to-router VPN connection that support the two-way exchange of traffic. Create routes on both sides of the router-to-router VPN connection so that traffic can be routed to and from the other side of the router-to-router VPN connection.

You can manually add static routes to the routing table, or you can add static routes through routing protocols. For more information about how to add an IP routing protocol, how to add a static route, and how to perform auto-static updates, see Windows Server online Help.

Cause : A two-way initiated, the answering router as a remote access connection is interpreting router-to-router VPN connection. Solution : If the user name in the credentials of the calling router appears under Dial-In Clients in Routing and Remote Access, the answering router may interpret the calling router as a remote access client. Verify that the user name in the credentials of the calling router matches the name of a demand-dial interface on the answering router.

If the incoming caller is a router, the port on which the call was received shows a status of Active and the corresponding demand-dial interface is in a Connected state. For more information about how to check the status of the port on the answering router, and how to check the status of the demand-dial interface, see Windows Server online Help.

Cause : Packet filters on the demand-dial interfaces of the calling router and answering router are preventing the flow of traffic. Solution : Verify that there are no packet filters on the demand-dial interfaces of the calling router and answering router that prevent the sending or receiving of traffic. For more information about how to manage packet filters, see Windows Server online Help. Cause : Packet filters on the remote access policy profile are preventing the flow of IP traffic.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. A green arrow appears in the folder icon next to your policy.

To see the active filters, type the following command at a command prompt:. If you want to prevent traffic that does not have a source or destination address that matches NetA or NetB , create an output filter for the external interface in the Routing and Remote Access MMC so that the filter drops all traffic except packets from NetA to NetB.

Also create an input filter so the filter drops all traffic except packets from NetB to NetA. You do not have to specifically allow the IPSec protocol because it never reaches the IP packet filter layer.

Click Outbound Filters , and then click New. Click to select the Source network and Destination network check boxes. Keep the protocol set to Any , and then click OK. Click New , and then click to select the Source network and Destination network check boxes. Click to select the Drop all packets except those that meet the criteria below check box, and then click OK. Click Input Filters , click Add , and then click to select the Source network and Destination network check boxes.

Click to select the Drop all packets except those that meet the criteria below check box, and then click OK two times. The Windows Server gateway must have a route in its route table for NetB. If the Windows Server gateway is multihomed with two or more network adapters on the same external network or two or more networks that can reach the destination tunnel IP 3rdExtIP , the potential exists for the following:. Outbound tunnel traffic leaves on one interface, and the inbound tunnel traffic is received on a different interface.

Even if you use IPSec offload network adapters, receiving on a different interface than the outbound tunnel traffic is sent on does not allow the receiving network adapter to process the encryption in hardware, because only the outbound interface can offload the Security Association SA.

Outbound tunnel traffic leaves on an interface that is different from the interface that has the tunnel endpoint IP address. The source IP of the tunneled packet is the source IP on the outbound interface. If this is not the source IP that is expected by the other end, the tunnel is not established or packets are dropped by the remote endpoint if the tunnel has already been established.

To avoid sending outbound tunnel traffic on the wrong interface, define a static route to bind traffic to NetB to the appropriate external interface:. In the Interface box, click WINextIP if this is the interface that you want to always use for outbound tunnel traffic. Type the Destination network and Network mask for NetB. Keep the Metric value set to its default 1 , and then click OK.

Note To address the issue of receiving inbound tunnel traffic on the wrong interface, do not advertise the interface's IP address by using a routing protocol. If you created the filters correctly and assigned the correct policy, the two gateways establish an IPSec tunnel so they can send the ICMP traffic from the ping command in encrypted format.

Even if the ping command works, verify that the ICMP traffic was sent in encrypted format from gateway to gateway. You can use the following tools to do this.

This logs events in the security log. This tells you if IKE security association negotiation was tried and if it was successful or not. Enable Success and Failure auditing for Audit logon events and Audit object access. Note If the Windows Server gateway is a member of a domain and if you are using a domain policy for auditing, the domain policy overwrites your local policy. In this case, modify the domain policy. After you try to establish the tunnel by using the ping command, you can see if an SA was created if the tunnel creation is successful, an SA is displayed.

If you see a "soft association" that did not previously exist, then IPSec agreed to allow this traffic to go "on the clear" without encryption. For additional information about "Soft Associations", click the following article number to view the article in the Microsoft Knowledge Base:.

To add the IP Security Monitor snap-in, follow these steps:. If you can see ICMP packets in the capture file that have source and destination IP addresses that correspond to the IP addresses of the computer that you are pinging from and the computer you are trying to ping, then IPSec is not protecting the traffic. To install Network Monitor, follow these steps:. If you are prompted for additional files, insert the installation CD for your operating system, or type a path of the location of the files on the network.

Before you try to ping from a computer on one subnet to the other NetA or NetB , type ipconfig at a command prompt. Start Network Monitor, and then on the Capture menu, click Networks. Try to ping the computer. If the ping is not successful, check the security and system logs.