The IP address range entered is invalid for the following reason: %1!s! The following constraints apply to IP address ranges: ...

The IP address range entered is invalid for the following reason:      
                                                                       
  %1!s!
                                                                       
The following constraints apply to IP address ranges:                  
                                                                       
  1. The addresses must be specified in standard dotted notation       
     and must lie between 1.0.0.0 and 224.0.0.0                        
                                                                       
  2. The addresses must not be in the form the form 127.x.x.x.         
                                                                       
  3. The 'from' IP address must be at least 1 address less than        
     the 'to' address.