I have managed to installed an embeded vcsa6 on Fusion but after vcsa6 boots up I see Failed to configure network in the start screen. I have configured network and able to SSH and ping VCSA 6 but unable to configure via the configuration webpage.
I fixed my instance. I added the networking section to the template file and re-ran the instance.
Look at Table 6 and the full_conf.json template and just plug in everything. Be sure to use a FQDN
Worked for me anyway.