Is it Possible to Configure a Custom IPv6 Link Local Address?
Palo Alto Networks firewalls do not have the ability to configure a custom IPv6 link local address. This scenario could occur when migrating to a new firewall and needing to configure a custom IPv6 link local address using the same IP address as previously used.
Using IPv6, a link local address is based on the MAC address of the interface and starts with the prefix fe80::/10.
The link local address for a dataplane interface can be retrieved by running the 'show interface ..' command on an IPv6 enabled interface:
> show interface ethernet1/6 | match "fe80"
Interface IPv6 address: fe80::21b:17ff:fe79:3b15/64
The system's link local address can be retrieved using the following command:
> show system info | match "link-local"