Netgate 7100U change wan mac address

[lexip]

Hi
For some of our schools we recently purchased a 7100u
our isp gives us a static ip adress but to get that adress we need to set de mac adress of our wan port.
whene i trie to change the wan(lagg0.4090) it says:
The MAC address of a VLAN interface must be set on its parent interface
i have been unable to find where to do that.

[rcoleman-netgate]

@lexip you have to create a parent interface for LAGG0 -- one does not exist by default.