Created attachment 227573 [details]
Diff for nojail -> nojailvnet
By default dhcpcd has the nojail keyword enabled in the rc script. It was added back in 2007 and I assume it is just a remnant of the pre-vnet days. I've been using dhcpcd exclusively in my vnet jails by manually changing the keyword to nojailvnet (Only allow vnet-enabled jails) and have experienced no problems over the past couple weeks.
I'm adding a diff to make this the default keyword, and would love to hear any concerns anyone might have.
Was planning to take this in with the 9.4.1 update, but doesn't matter my local change looks identically.