# Set options 
# RASEO_IpHeaderCompression
# RASEO_RemoteDefaultGateway
# RASEO_SwCompression
# without affecting any other options.
$options |= 0x00000008 | 0x00000010 | 0x00000200;

# Clear those same options again leaving every other option as it was

$options &= ~(0x00000008 | 0x00000010 | 0x00000200);

# do something if all three options are set
# regardless of what other options are set.
if( ($options & (0x00000008 | 0x00000010 | 0x00000200)) ==  (0x00000008 | 0x00000010 | 0x00000200) ) {
    # do something
}

# Do something if ONLY those three options are set
if( $options == (0x00000008 | 0x00000010 | 0x00000200) ) {
   # do it
}