Creating a Site2Cloud Connection
- Launch a Spoke or Transit Gateway in the subnet of VPC/VNet-AVX (public subnet in AWS, GCP, or OCI). Make note of the Gateway’s public IP address (35.161.77.0 in this example).
- Navigate to Networking > Connectivity > External Connections (S2C) and click Add New to create a Site2Cloud connection using the values for one of the below options (for either you can select either PSK or certificate-based authentication).
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Substitute the following values:
- Local Gateway: select the Aviatrix Gateway created above
- Remote Device Type: Generic (or Sonicwall if your version of Controller is lower than Controller version 6.7. If using a higher Controller version, only select Generic or Aviatrix).
- Remote Device IP: Public IP of Sonicwall (66.7.242.225 in this example)
- Remote Subnet CIDR(s): 10.16.100.0/24 (on-prem network CIDR)
- Local Subnet CIDR(s): 10.0.0.0/16
- Pre-Shared Key is optional; it is auto-generated if not entered
Creating Address Objects for the VPN subnets
In the Sonicwall UI, go to Network > Address Objects > click Add.Creating an Address Object for the Local Network
| Field | Value |
|---|---|
| Name | Arbitrary e.g. Site2Cloud-local |
| Zone | LAN |
| Type | Network |
| Network | The LAN network range |
| Network Mask/Prefix | e.g. 255.255.255.0 |
Creating an Address Object for the Cloud Network
| Field | Value |
|---|---|
| Name | Arbitrary e.g. site2cloud-cloud |
| Zone | WAN |
| Type | Network |
| Network | The Cloud network range |
| Network Mask/Prefix | e.g. 255.255.0.0 |
Configuring the VPN Tunnel
- Navigate to VPN > Settings > click Add.
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On the General tab fill in the following fields:
Field Value Policy Type Site to site Authentication Method IKE using Preshared Secret Name Arbitrary (e.g. Aviatrix-GW) IPsec Primary Gateway Address The public IP of the Aviatrix Gateway IPsec Secondary Gateway Address The public IP of the Aviatrix HA Gateway if configured Shared Secret Arbitrary Confirm Shared Secret Re-enter Shared Secret Local IKE ID Leave blank Peer IKE ID Leave blank 
Assigning the Local and Remote Address Objects to the Tunnel
- Select the Network tab and select the Address objects created above.
- Choose local network from list: e.g. Site2Cloud-local.
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Select the Proposals tab and set the IKE and IPsec values.
IPsec (Phase 2) Proposals
Field Value Exchange Main Mode DH Group Group2 Encryption AES-256 Authentication SHA1 Life Time (seconds) 28800 Field Value Protocol ESP Encryption AES-256 Authentication SHA1 Enable Perfect Forward Secrecy Mark this checkbox DH Group Group 2 Life Time (seconds) 3600 
If the Secondary Peer IP is configured, then Peer IKE ID must be left blank or else failover will not work properly.
Advanced Settings
- Click the Advance tab.
- Mark the Enable Keep Alive checkbox.
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Click OK to save.
