About the IU VPN

ProfileXML overview

VPN (virtual private network)
Go to the command prompt by pressing the Windows key on your keyboard and then the "R" key. But since most router implementations support a software-defined tunnel interface, customer-provisioned VPNs often are simply defined tunnels running conventional routing protocols. Do you want to use mobile devices or your computer? Minor misconfiguration of VPN connections can leave the network vulnerable. Choose "Add Configuration" from the pull-down menu.

File Extensions and File Formats

Can you have two VPN connections to the same machine simultaneously?

Click the link below for the video! If you like this one, please leave me a comment below. I crave approval, so make my day by dropping me a note. Thank you for this tutorial, Greg! This feature rocks, plain and simple. I suppose I could have also mentioned that you can use radius authentication…even auth off of an Active Directory domain!

Hey, thanks for the simple tutorial. I have been trying to get an ipsec, road warrior vpn setup for two days no, with no luck. How could I change it? I need to have the same default gateway for all VPN connections. Where could I set default gateway for all connections? It seems like you are asking if you can connect using the same PPTP secret on multiple machines at the same time?

It would try to hand out the same IP to each client. The PPTP connections will tunnel everything. If you want to do alternate routing on the client side, you have to use static routes. A script could probably be written to run on the client side to watch for the PPTP connection and adjust.

The problem that I still cannot print through VPN connection, although it is already connected and another strange things, when I ping it, it result with RTO. Are you trying to print from the hub site to the remote or are you printing from the remote to the hub site.

I assume it is the hub site. You have the printer mapped straight on your machine, or are you using a print server? If the subnet you are handing your PPtP client is the same subnet that your inside machines live on, then you will need to enable proxy arp on that inside interface. I have a problem. I can connect to the pptp and it gives me a IP in the same subnet, but I cannot connect to devices on that network or ping any devices.

I had to forward ports on the Mikrotik thats on the public IP to a mikrotik that is connected via Radio towers. I can ping the mikrotik but no devices. Now for the stupid question. Is my connection encripted, or secure? And how would I know that from the RBg side?? It is encrypted if you are using mschapv1 or 2. Mschapv1 is more vulnerable than v2. But how do i do Active Directory Authentication so users can authenticate with same username and password they use to log in to the domain to log in to the VPN.

It works perfectly… just not outside my network: But, you are the man. You make my mikrotik simple. The method for checking the authentication method on the client end varies depending on the client's operating system. This will reveal the connection's properties sheet.

Now, select the properties sheet's Security tab, select the Advanced radio button, and click the Settings button to reveal the available authentication methods. If the authentication methods appear to be set correctly, the next step is to check the technique by which the client is trying to connect to the VPN server. If the client is dialing in to the server, rather than connecting through the Internet, it could be that the remote user has no dial-in privileges. You can check the privileges either by looking at the Dial In tab on the user's properties sheet in Active Directory Users And Computers, or by looking at the domain's remote access policy.

This would also be a good time to verify that the user actually knows how to establish the VPN connection and that the user is using the correct username and password.

This may sound obvious, but if your domain is running in Windows Native Mode, your VPN server needs to be a member of the domain. If the VPN server hasn't joined the domain, it will be unable to authenticate logins. You also need to take a look at IP addresses. This IP address has the same subnet as the local network and thus allows the client to communicate with the local network.

At the time you set up the VPN server, you must either specify that the server will use a DHCP server to assign addresses to clients, or you can create a bank of IP addresses to assign to clients directly from the VPN server. In either case, if the server runs out of valid IP addresses, it will be unable to assign an address to the client and the connection will be refused.

If you right-click on the VPN server in the Routing And Remote Access console and select the Properties command from the resulting shortcut menu, you'll see the server's properties sheet. The properties sheet's IP tab contains radio buttons that allow you to select whether a static address pool or a DHCP server will be used. If you select the DHCP server option, you must select the appropriate network adapter from the drop-down list at the bottom of the tab.

Now that I've discussed reasons why a connection might be refused, let's take a look at the opposite problem in which unauthorized connections are accepted. This problem is much less common than not getting connected at all, but is much more serious because of the potential security issues.

If you look at a user's properties sheet in the Active Directory Users And Computers console, you'll notice that the Dial In tab contains an option to control access through the remote access policy. If this option is selected and the effective remote access policy is set to allow remote access, the user will be able to attach to the VPN.

Although I have been unable to re-create the situation personally, I have heard rumors that a bug exists in Windows that causes the connection to be accepted even if the effective remote access policy is set to deny a user's connection, and that it's best to allow or deny connections directly through the Active Directory Users And Computers console.

Another common VPN problem is that a connection is successfully established, but that the remote user is unable to access the network lying beyond the VPN server. By far, the most common cause of this problem is that permission hasn't been granted for the user to access the entire network. If you have ever worked with Windows NT 4. This particular setting doesn't exist in Windows , but there is another setting that does the same thing.

To allow a user to access the entire network, go to the Routing And Remote Access console and right-click on the VPN server that's having the problem. Select the Properties command from the resulting shortcut menu to display the server's properties sheet, and then select the properties sheet's IP tab.

If the check box is not selected, these users will be able to access only the VPN server, but nothing beyond. The problem could also be related to other routing issues. For example, if a user is dialing directly in to the VPN server, it's usually best to configure a static route between the client and the server.

This will cause Windows to display the Static Routes dialog box. Click the Add Route button and then enter the destination IP address and network mask in the space provided. The metric should be left at 1. If you're using a DHCP server to assign IP addresses to clients, there are a couple of other problems that could cause users not to be able to go beyond the VPN server.

One such problem is that of duplicate IP addresses. If the DHCP server assigns the user an IP address that is already in use elsewhere on the network, Windows will detect the conflict and prevent the user from accessing the rest of the network. Another common problem is the user not receiving an address at all. However, there are situations in which an address assignment fails, so Windows automatically assigns the user an address from the If the client is assigned an address in this range, but this address range isn't present in the system's routing tables, the user will be unable to navigate the network beyond the VPN server.

1: The VPN connection is rejected.