SITE TO SITE VPN

Can you teach me how to set at site-to-site VPN on my NGAF? The Head Quarters and Branch configuration.

To set up a site-to-site VPN on your NGAF (Next-Generation Application Firewall) for the Head Quarters and Branch configuration, you can follow these general steps:

Configure the NGAF devices: Set up the NGAF devices at both the Head Quarters and Branch locations. Ensure that they are properly connected to the network and have the necessary configurations in place.

Create VPN profiles: Access the NGAF management interface and navigate to the VPN settings. Create VPN profiles for the site-to-site connection. You may need to specify the encryption algorithms, authentication methods, and other parameters according to your network requirements.

Configure IPsec settings: IPsec (Internet Protocol Security) is commonly used for site-to-site VPN connections. Configure the IPsec settings on both the Head Quarters and Branch NGAF devices. This includes defining the IPsec policies, specifying the local and remote subnets, and configuring the security associations.

Establish the VPN tunnel: Once the VPN profiles and IPsec settings are configured, initiate the VPN tunnel between the Head Quarters and Branch NGAF devices. This will establish a secure connection between the two locations.

Test the connectivity: After the VPN tunnel is established, test the connectivity between the Head Quarters and Branch networks. Ensure that you can access resources on both sides of the VPN and that the communication is secure.

Please note that the specific steps and configurations may vary depending on the NGAF model and firmware version you are using. It is recommended to refer to the NGAF documentation

Here are the steps for both the Headquarters and Branch configurations:

Headquarters Configuration

    Enable VPN Service: Go to Network > IPSec VPN > Status and click Enable VPN Service.

    Add VPN Paths: Go to Basic Settings > VPN Paths > Add. Select the WAN interface you want to use for VPN and specify the public IP address that will be used for VPN (changing the ISP name has no effect).

    Add Third-Party Connection: Go to Third-Party Connection to use for IPSec VPN and click Add Connection. You will need to fill in the following information:
        VPN Connection Name: Enter a name for the VPN connection.
        Peer IP Address: Enter the public IP address of the Branch NGAF.
        Authentication Method: Select Pre-Shared Key.
        Shared Key: Enter a shared key that will be used for authentication.
        Local Line: Select the local line that is the same as the outgoing line of one interface.
        Enable Aggressive Mode: Select this option if you want to use aggressive mode for the VPN connection. Aggressive mode can improve performance, but it is less secure than main mode.

    Save the configuration: Click Save to save the configuration.

Branch Configuration

    Enable VPN Service: Go to Network > IPSec VPN > Status and click Enable VPN Service.

    Add VPN Paths: Go to Basic Settings > VPN Paths > Add. Select the WAN interface you want to use for VPN and specify the public IP address that will be used for VPN (changing the ISP name has no effect).

    Add Third-Party Connection: Go to Third-Party Connection to use for IPSec VPN and click Add Connection. You will need to fill in the following information:
        VPN Connection Name: Enter a name for the VPN connection.
        Peer IP Address: Enter the public IP address of the Headquarters NGAF.
        Authentication Method: Select Pre-Shared Key.
        Shared Key: Enter the shared key that was used for authentication in the Headquarters configuration.
        Local Line: Select the local line that is the same as the outgoing line of one interface.
        Enable Aggressive Mode: Select this option if you want to use aggressive mode for the VPN connection. Aggressive mode can improve performance, but it is less secure than main mode.

    Save the configuration: Click Save to save the configuration.

Testing the VPN Connection

    Go to Network > IPSec VPN > Status.

    Click on the VPN connection that you created.

    The VPN connection status should be Established.

You can now test the VPN connection by trying to access resources on the other network.

Additional Notes

    You may need to configure firewall rules on both the Headquarters and Branch NGAFs to allow VPN traffic.

    If you are using dynamic IP addresses, you will need to use a dynamic DNS service to keep the public IP addresses of the Headquarters and Branch NGAFs up to date.

    If you are using aggressive mode, you may need to increase the MTU on the WAN interfaces of the Headquarters and Branch NGAFs to 1458.

I hope this helps!

To create a branch user, select "branch user" when creating a new user.


Establish the Phase 1 setup of the IPSec VPN, which entails setting the mode, exchanging pre-shared keys, validating ID, DPD, and NAT T.


Configure the VPN interface by choosing "IPSec VPN" as the interface type when you add a VPN interface. If the LAN interface is not already in the VPN interface, add it and enable the VPN service.



Establish the VPN connection by choosing "third-party connection" and adding a fresh one. Input the device name, peer IP address, and pre-shared key authentication method. Choose the local line, which ought to match the interface's outgoing line, and enter the shared key.

1. Obtaining the IP addresses of both websites is necessary. For every site, public IP addresses and/or local network subnets, if applicable
2. use a web browser to find the IP address of the NGAF
3. find the section on VPN setup. Typically, depending on the model and version, under the "network" or "VPN" area.
4. Establish a VPN tunnel.
- indicate which website will initiate the VPN connection and provide the IP address or hostname of the respondent.
Select the authentication technique (certificates or PSK) and set up the certificate settings or input the PSK.

Creating a secure connection between the main office and branch sites requires setting your Next-Generation Firewall (NGAF) for a site-to-site VPN (Virtual Private Network). Start by going to the VPN settings using the NGAF interface. Establish the VPN tunnel's specifications, including the authentication techniques, encryption algorithms, and tunnel endpoints for each site. Assign distinct identities to facilitate identification, configure IP address ranges or subnets for every location, and provide the necessary routing rules to guide traffic across the VPN tunnel. Make sure the firewall rules allow VPN traffic to flow between the sites, and make sure the connection is working properly by giving it a full test. Keep in mind that details may change depending on your NGAF version or interface, so consult the manual carefully.

Ensure that the firewall rules on both ends allow traffic between the VPN networks.
Periodically review and update VPN configurations for security and compliance.
Remember to consult the official Sangfor NGAF documentation for detailed and version-specific instructions. If you encounter any issues or have specific questions, it's advisable to contact Sangfor support for assistance.

Branch Configuration:

Repeat the process for the branch office, ensuring consistency with the HQ configuration.
Step 5: Apply and Activate the VPN Configuration
Apply the VPN configuration on both the HQ and branch offices.
Activate the VPN to establish the secure connection between the two sites.
Step 6: Verify the Connection
Check the VPN status to ensure that the connection is established.
Verify network connectivity between the HQ and branch offices.

Below is a general guide for setting up a site-to-site VPN on Sangfor NGAF. Please refer to the official documentation or seek assistance from Sangfor support for the most accurate and updated information based on your NGAF version.

Prerequisites:
Access to Sangfor NGAF web interface.
Knowledge of the IP addresses and network configurations of the HQ and branch offices.
Site-to-Site VPN Configuration Steps:
Step 1: Log in to Sangfor NGAF Web Interface
Open a web browser and enter the IP address or hostname of your Sangfor NGAF device. Log in with the appropriate credentials.

Step 2: Navigate to VPN Configuration
Navigate to the VPN configuration section. This may be located under a "VPN" or "Security" menu. Specific menu names might vary based on the NGAF version.

Step 3: Create VPN Policy
HQ Configuration:

Create a new VPN policy for the HQ. Specify the local and remote IP addresses, encryption settings, and authentication details.
Define the local and remote networks that will be part of the VPN.
Set the IKE (Internet Key Exchange) parameters, such as the encryption algorithm and pre-shared key.
Branch Configuration:

Repeat the process for the branch office, ensuring that the local and remote details are appropriately configured.
Use the same pre-shared key as configured on the HQ side.
Specify the local and remote networks.

Setting up a site-to-site VPN (Virtual Private Network) involves configuring your Next-Generation Firewall (NGAF) to establish a secure connection between the headquarters and branch locations. Begin by accessing the NGAF interface and navigating to the VPN settings. Define the VPN tunnel parameters such as encryption algorithms, authentication methods, and tunnel endpoints for both sites. Assign unique identifiers for easy recognition, set up IP address ranges or subnets for each site, and establish appropriate routing rules to direct traffic through the VPN tunnel. Ensure that firewall rules permit VPN traffic between the sites, and thoroughly test the connection to verify its functionality. Remember, specifics might vary based on your NGAF version or interface, so work accordingly by viewing documentation.