we use an IBM x3500 M3 with two physical ethernet cards. one is actually for the ubuntu which virtualize a mac os x by using virtual box. so there's one unused ethernet card. therefore, i want to use this card for the virtual box mac os x only, so it gets its own ip and is accessible from the ubuntu machine and the other clients in the network. how can i do that? which settings do i have to use and which network mode? nat? bridge? any suggestions?
thanks in advance.