Algumas vezes, quando usamos um IP fora do range permitido pelo VirtualBox, Vagrant vai retornar o seguinte erro:
The IP address configured for the host-only network is not within the
allowed ranges. Please update the address used to be within the allowed
ranges and run the command again.
Address: 172.17.177.40
Ranges: 10.0.0.0/21
Valid ranges can be modified in the /etc/vbox/networks.conf file. For
more information including valid format see:
https://www.virtualbox.org/manual/ch06.html#network_hostonlyPara corrigir, basta editar o arquivo /etc/vbox/networks.conf, colocando o novo range na frente do outro, por ex:
* 10.0.1.0/21 172.17.177.0/21
