Cisco Anyconnect Sstp



Have you ever noticed your Internet connection is slower when connected to a VPN? Then enabling Split Tunnel may be the answer for you!.

Split tunneling

In a VPN connection, split tunneling is the practice of routing only some traffic over the VPN, while letting other traffic directly access the Internet. Usually, what is routed over the VPN will be traffic destined for internal resources, while web surfing, email, skype, etc. will go directly to the Internet. An advantage of using split tunneling, is that it alleviates bottlenecks and conserves bandwidth as Internet traffic, does not have to pass through the VPN server.

Split tunneling can be used for several different purposes including:

The Cisco Umbrella module for AnyConnect on Android provides DNS-layer protection for Android v6.0.1 and later and can be enabled with or without an AnyConnect license LICENSING AND INFRASTRUCTURE REQUIREMENTS: This software is licensed for exclusive use by Cisco headend customers with active Plus, Apex or VPN Only licenses (term or perpetual. Launch the Cisco AnyConnect Secure Mobility Client client. If you don't see Cisco AnyConnect Secure Mobility Client in the list of programs, navigate to Cisco Cisco AnyConnect Secure Mobility Client. When prompted for a VPN, enter su-vpn.stanford.edu and then click Connect. Enter the following information and then click OK. IOS users can connect via SSTP using Cisco AnyConnect. You can find a good tutorial for it here.

  • Allowing normal use of the internet while simultaneously accessing resources only available to VPN users, such as a business server
  • Setting up specific devices, such as game consoles or streaming media boxes, to use (or not use) the VPN without affecting other devices on the network
  • Sending all of a device’s traffic through the VPN except when accessing content or services that don’t allow VPN connections, such as MLB.tv or Netflix
  • Sending all traffic through the VPN except for content and services that require low latency, such as VoIP applications and online games
  • Only routing torrent traffic through the VPN, while all other internet traffic goes to the default network
  • Access the VPN without affecting your connection to other devices on the local network, such as printers or a Plex Media Server

Pros

If you are going to split tunnel, then you are going to reduce the overall bandwidth impact on your Internet circuit. Only the traffic that needs to come over the VPN will, so anything a user is doing that is not “work related” will not consume bandwidth. In addition, anything external to your network, that is also latency sensitive will not suffer from the additional latency introduced by tunneling everything over the VPN to the corporate network, then back out to the Internet, and the return traffic routing over the reverse. Users will get the best experience in terms of network performance, and the company will consume the least bandwidth.

Cons

If security is supposed to monitor all network traffic, or perhaps merely protect users from malware and other Internet threats by filtering traffic, users who are split tunneling will not get this protection and security will be unable to monitor traffic for threats or inappropriate activity. Users on open networks such as hotel wireless or hotspots will also be transmitting much of their traffic in the clear. Traffic to websites that use HTTPS will still be protected, but other traffic will be vulnerable to snooping.

How to Enable Spit Tunnel in Windows 10

In order to enable Split Tunnel in Windows 10, you must be sure the VPN is already working. If you have a problem with your VPN connection, like it is not connecting, or dropping every 5 minutes, etc. Split Tunnel won’t make a difference, so resolve those issues first. Once you have a working VPN connection, the way to change VPN Split Tunnel in Windows 10 is using Powershell.

Windows is fairly limited when it comes to split tunneling. There’s no way that we’re aware of to split tunnel by app or destination. Instead, the split tunneling option in Windows is much broader. You can choose not to tunnel IPv4 and IPv6 traffic so that only local traffic goes through the VPN. That’s useful if only need to use the VPN to access remote resources not available from your normal internet connection, but not much else.

Furthermore, Windows only split tunnels VPN protocols that it has built-in support for. That means you’ll need to configure an L2TP, SSTP, or PPTP connection first. OpenVPN won’t work here.

Anyconnect

This example, will use your local connection to access the internet while the VPN will be used to access remote resources, such as a private business server that can only be accessed via VPN. The VPN will only be used when a host isn’t available on the local network.

In this tutorial, will use Windows 10. We’ll assume you’ve already set up your VPN connection, and you only need to enable split tunneling. You’ll need admin privileges and the destination subnet for your VPN private space.

Cisco Sstp Vpn

Using Powershell to configure Split Tunnel

In your Windows search bar, type Powershell and right click it to Run as administrator split tunnel windows

Type the following command and press Enter:

This will bring up a list of all your available VPN connections. (I test a lot of VPNs so there are several in my screenshot, but you’ll likely only have one.) Make a note of the Name of the VPN you want to split tunnel.

Type the following command and hit Enter, replacing <VPN NAME> with the name you noted in the previous step:

You can check that split tunneling is enabled by entering the Get-VPNConnection command again. The split tunneling field should now be set to True.

Next, enter this command and make a note of the Description field:

Sstp

If necessary, add the route. Replace <DESTINATION SUBNET> with the subnet you want to route through the VPN, and <INTERFACE> with the name of the Description field we mentioned in the last step:

If you want to disable split tunneling, enter this command:

Install Cisco Anyconnect

We hope this guide helps you with your VPN deployment. Here at Austral Tech we are VPN experts and we have experience setting up VPN tunnels with F5 Products, Checkpoint, Ubiquiti and Cloud providers (AWS, Azure and Google). So if you need help with your VPN deployment, don’t hesitate to contact us!

Overview

Stanford's VPN allows you to connect to Stanford's network as if you were on campus, making access to restricted services possible. To connect to the VPN from your Windows computer you need to install the Cisco AnyConnect VPN client.

Two types of VPN are available:

  • Default Stanford (split-tunnel). When using Stanford's VPN from home, we generally recommend using the Default Stanford split-tunnel VPN. This routes and encrypts all traffic going to Stanford sites and systems through the Stanford network as if you were on campus. All non-Stanford traffic proceeds to its destination directly.
  • Full Traffic (non-split-tunnel). This encrypts all internet traffic from your computer but may inadvertently block you from using resources on your local network, such as a networked printer at home. If you are traveling or using wi-fi in an untrusted location like a coffee shop or hotel, you may wish to encrypt all of your internet traffic through the Full Traffic non-split-tunnel VPN to provide an additional layer of security.

You can select the type of VPN you want to use each time you connect to the Stanford Public VPN.

Install the VPN client

  1. Download the Cisco AnyConnect VPN for Windows installer.
  2. Double-click the InstallAnyConnect.exe file.
  3. When a message saying the Cisco AnyConnect client has been installed, click OK.

Connect to the Stanford VPN

  1. Launch the Cisco AnyConnect Secure Mobility Client client.
    If you don't see Cisco AnyConnect Secure Mobility Client in the list of programs, navigate to Cisco > Cisco AnyConnect Secure Mobility Client.
  2. When prompted for a VPN, enter su-vpn.stanford.edu and then click Connect.
  3. Enter the following information and then click OK:
    • Group: select Default Stanford split- tunnel (non-Stanford traffic flows normally on an unencrypted internet connection) or Full Traffic non-split-tunnel (all internet traffic flows through the VPN connection)
    • Username: your SUNet ID
    • Password: your SUNet ID password

  4. Next, the prompt for two-step authentication displays. Enter a passcode or enter the number that corresponds to another option(in this example, enter 1 to authenticate using Duo Push to an iPad). Then click Continue.
    • You may have to scroll down the list to see all of your options.
    • If your only registered authentication method is printed list, hardware token, or Google Authenticator, the menu does not display. Enter a passcode in the Answer field and click Continue.
  5. Click Accept to connect to the Stanford Public VPN service.
  6. Once the VPN connection is established, a message displays in the lower-right corner of your screen, informing you that you are now connected to the VPN.

Install Cisco Anyconnect Vpn

Disconnect from the Stanford VPN

Cisco Anyconnect Secure Mobility Client Free

  1. In the notification area, click the Cisco AnyConnect icon if it is displayed. Otherwise, go to your list of programs and click Cisco AnyConnect Secure Mobility Client.
  2. At the prompt, click Disconnect.