When including internet access in an IPVPN line, it is essential to ensure that the IPVPN data remains protected from unauthorized access or interception. The suitable equipment that can be used to protect IPVPN data depends on the specific requirements of the network and the level of security that is required. Here are a few options to consider:

1. Firewall: A firewall can be used to protect the IPVPN network by blocking unauthorized access to the network and filtering out any malicious traffic that may compromise the security of the IPVPN data.
2. VPN Gateway: A VPN gateway can be used to encrypt the IPVPN data as it travels over the internet. This helps to prevent unauthorized access to the data and ensures that it remains confidential.
3. Intrusion Detection and Prevention System (IDPS): An IDPS can be used to detect and prevent any attempts to compromise the security of the IPVPN data by monitoring network traffic and identifying potential threats.
4. Secure Socket Layer (SSL) or Transport Layer Security (TLS) encryption: SSL or TLS encryption can be used to secure the internet connection and protect the IPVPN data from interception by unauthorized users.

Overall, the suitable equipment for protecting IPVPN data when including internet access will depend on the specific requirements of the network, the level of security that is needed, and the budget available for implementing these security measures. It is recommended to consult with a qualified network security professional to determine the best approach for your organization.