In IPv6, the concept of opening ports is different compared to IPv4, mainly due to the elimination of the need for NAT (Network Address Translation).

In IPv4, NAT is commonly used to allow multiple devices to share a public IP address, and opening ports is essential to direct incoming traffic to the correct devices within a private network.

With IPv6, each device can have its own public IP address due to the wide availability of addresses. This means that, theoretically, NAT is not needed and each device is directly accessible from the outside.

However, opening ports in the sense of allowing certain types of traffic through the firewall is still necessary.

In practice, to configure cameras, servers or other services on an IPv6 network, you will need to:

1. Assign static or permanently assigned IPv6 addresses to devices that need to be accessible from the outside.
2. Configure firewall rules to allow incoming traffic to the specific IPv6 addresses and ports used by services on those devices.

Although the process technically differs from traditional port forwarding under NAT in IPv4, the need to manage access through a firewall remains an essential requirement in IPv6 networks to maintain security and correct traffic routing.

This includes specifying which ports and protocols can receive connections from the Internet to specific devices.