How to get 2nd Network Adapter in Parallels Desktop for 4 (although there is only one

Hi,

I am trying to install a virutal image on my Parallels Desktop for Mac, which requires two network Cards (at least in theory). During installation of the Linux environemnt he tries to find a second network adapter, although there is only one in my imac of course. Is there a way to add kind of virtual 2nd adapter in order for the installation to to be done (don`t need network access anyhow, as this is a specific software used for DEMO purpose only).

The PLUS button in Parallels config doesn`t give me the option to add a network card. If I had a second network adapter in Mac Preferences, the second one will not be visible in Parallels...

Any help welcome
Thank