# Site-to-Site VPN attachments in AWS Cloud WAN
<a name="cloudwan-s2s-vpn-attachment"></a>

Attaching a Site-to-Site VPN connection to your core network edge, first requires that you create a Site-to-Site VPN connection with **Target Gateway Type** set to **Not Associated**. See [Create an AWS Cloud WAN Site-to-Site VPN attachment](https://docs.aws.amazon.com/vpn/latest/s2svpn/create-cwan-vpn-attachment.html) in the *AWS Site-to-Site VPN User Guide*.

**Note**  
 Your Site-to-Site VPN must be attached to a core network before you can start configuring a customer gateway. AWS doesn't provision these endpoints until the Site-to-Site VPN is attached to the core network. 
A Site-to-Site VPN attachment must be created in the same AWS account that owns the core network. 

**Topics**
+ [Create a Site-to-Site VPN attachment](cloudwan-vpn-attachment-add.md)
+ [View or edit a Site-to-Site VPN attachment](cloudwan-attachments-viewing-editing-vpn.md)