PAN-OS 11.0 (Nova) introduced the capability for a firewall to function as a DHCPv6 client with prefix delegation. This feature enables the firewall to request and obtain an IPv6 address and/or an entire IPv6 prefix from an upstream DHCPv6 server, such as one operated by an Internet Service Provider (ISP). The firewall can then use this delegated prefix to assign IPv6 addresses to clients on its internal networks, facilitating dynamic IPv6 address management in enterprise environments.

B. OSPF: OSPFv3, which supports IPv6, has been a feature in PAN-OS for many versions prior to 11.0 and is not a new addition.

C. DHCP Server: The firewall's ability to act as a DHCPv6 server was available in previous PAN-OS versions and is not a new feature in 11.0.

D. IKEv1: IKEv1 is an older VPN protocol. Its support for IPv6 transport is not a new feature introduced in PAN-OS 11.0.

1. Palo Alto Networks Documentation. (2022). PAN-OS® New Features Guide

Release 11.0. "Networking Features" section. The guide explicitly lists "DHCPv6 Client with Prefix Delegation" as a new feature. It states

"The firewall can now act as a DHCPv6 client to request and obtain an IPv6 address and/or an IPv6 prefix from a DHCPv6 server."

2. Palo Alto Networks Documentation. (2022). PAN-OS® Administrator's Guide

Release 11.0. "DHCP Overview" section. This guide details the configuration and functionality

confirming that DHCPv6 Client with Prefix Delegation is a new capability for obtaining prefixes from an ISP.

3. Palo Alto Networks Documentation. (2014). PAN-OS® Administrator's Guide

Release 6.0. "OSPF" section. This older documentation confirms that OSPFv3 for IPv6 was supported long before the PAN-OS 11.0 release

demonstrating it is not a new feature.