mitchellh/vagrant — pull request #723 by bobveznat (2012-02-08 22:56:04+00:00)
Title: Convert host only IPs to be RFC1918

33.0.0.0/8 is owned by the DoD. At the very least this configuration breaks access to the subnet 33.33.33.0/24 that the DoD owns. If a Vagrant user wants to communicate with an IP in that range he can't because Vagrant has configured the host OS to route those packets to the guest OS (rather than the Internet).

This pull request converts the example IPs to be in 192.168.0.0/16 which is safe. I ran a basic set of tests with rake and they all passed.