The guest is a NAT device. From Ipconfig I can have an ip adress but I can't ping it from the host. do you have some ideas on how to connect to virtual box guest from host ?
Host OS: 2008 windows server Guest Os: Windows XP
Convert it to a Bridged network device, or switch it to a Host-only network device. NAT will only allow other guests who are NAT'ed to connect to it due to how NAT networking works.