• SonicOS and SonicOSX 7 IPSec VPN
• IPSec VPN Overview
  • About Virtual Private Networks
  • VPN Types
    • IPsec VPN
    • DHCP over VPN
    • L2TP with IPsec
    • SSL VPN
  • VPN Security
    • About IKEv1
    • About IKEv2
    • Mobility and Multi-homing Protocol for IKEv2 (MOBIKE)
    • About IPsec (Phase 2) Proposal
    • About Suite B Cryptography
  • VPN Base Settings and Displays
    • Policies
    • Active Tunnels
    • Settings
  • IPv6 VPN Configuration
• Site to Site VPNs
  • Planning Site to Site Configurations
  • General VPN Configuration
    • Configuring Settings on the General Tab
    • Configuring Settings on the Network Tab
    • Configuring Settings on the Proposals Tab
    • Configuring Settings on the Advanced Tab
  • Managing GroupVPN Policies
    • Configuring IKE Using a Preshared Secret Key
    • Configuring IKE Using 3rd Party Certificates
    • Downloading a GroupVPN Client Policy
  • Creating Site to Site VPN Policies
    • Configuring with a Preshared Secret Key
    • Configuring with a Manual Key
    • Configuring with a Third-Party Certificate
    • Configuring the Remote SonicWall Network Security Appliance
    • Configuring VPN Failover to a Static Route
• VPN Auto Provisioning
  • About VPN Auto Provisioning
    • Defining VPN Auto Provisioning
    • Benefits of VPN Auto Provisioning
    • How VPN Auto Provisioning Works
      • About Establishing the IKE Phase 1 Security Association
      • About Establishing IKE Phase 2 using a Provisioned Policy
  • Configuring a VPN AP Server
    • Starting the VPN AP Server Configuration
    • Configuring VPN AP Server Settings on General
    • Configuring VPN AP Server Settings on Network
    • Configuring Advanced Settings on Proposals
    • Configuring Advanced Settings on Advanced
  • Configuring a VPN AP Client
• Rules and Settings
  • Adding a Tunnel Interface
    • Creating a Static Route for the Tunnel Interface
  • Route Entries for Different Network Segments
  • Redundant Static Routes for a Network
• Advanced
  • Configuring Advanced VPN Settings
  • Configuring IKEv2 Settings
  • Using OCSP with SonicWall Network Security Appliances
    • OpenCA OCSP Responder
    • Loading Certificates to Use with OCSP
    • Using OCSP with VPN Policies
• DHCP over VPN
  • DHCP Relay Mode
  • Configuring the Central Gateway for DHCP Over VPN
  • Configuring DHCP over VPN Remote Gateway
  • Current DHCP over VPN Leases
• L2TP Servers and VPN Client Access
  • Configuring the L2TP Server
  • Viewing Currently Active L2TP Sessions
  • Configuring Microsoft Windows L2TP VPN Client Access
  • Configuring Google Android L2TP VPN Client Access
• AWS VPN
  • Overview
  • Creating a New VPN Connection
  • Reviewing the VPN Connection
    • Configuration on the Firewall
    • Configuration on Amazon Web Services
  • Route Propagation
  • AWS Regions
  • Deleting VPN Connections
• SonicWall Support
  • About This Document

Configuring the Remote SonicWall Network Security Appliance

1. Navigate to NETWORK | IPSec VPN > Rules and Settings.
2. Click +Add. The VPN Policy dialog displays.
3. On the General screen, select Manual Key from the Authentication Method drop-down menu.
4. Enter a name for the appliance in the Name field.
5. Enter the host name or IP address of the local connection in the IPsec Gateway Name or Address field.
6. Click Network.

7. Under Local Networks, select one of these:

   • If a specific local network can access the VPN tunnel, select a local network from the Choose local network from list drop-down menu.

   • If traffic can originate from any local network, select Any Address. Use this option if a peer has Use this VPN tunnel as default route for all Internet traffic selected. Auto-added rules are created between Trusted Zones and the VPN Zone.

8. Under Remote Networks, select one of these:

   • If traffic from any local user cannot leave the firewall unless it is encrypted, select Use this VPN Tunnel as default route for all Internet traffic.

     You can only configure one SA to use this setting.

   • Alternatively, select Choose Destination network from list, and select the address object or group.

9. Click Proposals.

10. Define an Incoming SPI and an Outgoing SPI. The SPIs are hexadecimal (0123456789abcedf) and can range from 3 to 8 characters in length.

    Each Security Association must have unique SPIs; no two Security Associations can share the same SPIs. However, each Security Association Incoming SPI can be the same as the Outgoing SPI.

11. The default values for Protocol, Encryption, and Authentication are acceptable for most VPN SA configurations.

    The values for Protocol, Encryption, and Authentication must match the values on the opposite side of the tunnel.

12. Enter a 48-character hexadecimal encryption key in the Encryption Key field. Use the same value as used on the firewall on the opposite side of the tunnel.

13. Enter a 40-character hexadecimal authentication key in the Authentication Key field. Use the same value as used on the firewall on the opposite side of the tunnel.

    Valid hexadecimal characters include 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, and f. 1234567890abcdef is an example of a valid DES or ARCFour encryption key. If you enter an incorrect encryption key, an error message is displayed at the bottom of the browser window.

14. Click Advanced.

15. Select any of the following optional settings you want to apply to your VPN policy:

    • The Suppress automatic Access Rules creation for VPN Policy setting is not enabled by default to allow the VPN traffic to traverse the appropriate zones.

    • Select Enable Windows Networking (NetBIOS) broadcast to allow access to remote network resources by browsing the Windows® Network Neighborhood.

    • For WXA Group, select None or Group One.

    • Select Apply NAT Policies if you want the firewall to translate the Local, Remote or both networks communicating through this VPN tunnel. Two drop-down menus display:

      • To perform Network Address Translation on the Local Network, select or create an Address Object in the Translated Local Network menu.

      • To translate the Remote Network, select or create an Address Object in the Translated Remote Network drop-down menu.

        Generally, if NAT is required on a tunnel, either Local or Remote should be translated, but not both. Apply NAT Policies is particularly useful in cases where both sides of a tunnel use either the same or overlapping subnets.

    • To manage the remote SonicWall through the VPN tunnel, select HTTP, SSH, SNMP, or any combination of these three from Management via this SA.

    • Select HTTP, HTTPS, or both in the User login via this SA to allow users to login using the SA.

      HTTP user login is not allowed with remote authentication.

    • If you have an IP address for a gateway, enter it into the Default LAN Gateway (optional) field.

    • Select an interface from the VPN Policy bound to menu.

      Two different WAN interfaces cannot be selected from the VPN Policy bound to drop-down menu if the VPN Gateway IP address is the same for both.

16. Click OK.
17. Click Accept on the NETWORK | IPSec VPN > Rules and Settings page to update the VPN Policies.

If Window Networking (NetBIOS) has been enabled, users can view remote computers in their Windows Network Neighborhood. Users can also access resources on the remote LAN by entering servers’ or workstations’ remote IP addresses.