Assuming you have a Vagrantfile setup to forward port 8080 and/or 8443 to the default http and https ports on the web server running in the Vagrant Virtual Machine guest, you can forward these ports to the normally reserved ports on your Mac OS X host
Create a port forwarding rule for both http and https ports that forwards 80 to 8080 and 443 to 8443 on your Mac (thanks to Abe Tobing for his guide on using pf)
Add port forwarding configuration that references this rule
Once you have created both these files, to activate this rule run “sudo pfctl -ef /etc/pf-vagrant.conf”