I'm trying to add a 2nd IP address with a mask of 32 bits (255.255.255.255)\nto an existing Windows 2003 Server but I'm not having much luck. So what I\nwant is this:\n\nA traditional IP/Mask as the primary interface IP and a secondary IP as a\n/32. When I try to add the /32 Windows complains as follows:\n\n"The combination of IP address and subnet mask is invalid. All of the bits\nin the host address portion of the IP address are set to 1. Please enter a\nvalid combination of IP address and subnet mask."\n\nThis sort of thing is done all the time for routers (loopback addresses) and\ncan easily be done on unix (either as a primary interface such as an eth0 or\nas a virtual interface such as eth0:1). So can I do that in Windows?\n\nThanks!