Previous Page: You have specified a Class B IP address, but the subnet mask is not valid for a Class B address. Check that the correct address and subnet mask have been supplied.  Next Page: You have specified a Class D IP address, which is not supported. Check that the correct address and subnet mask have been supplied.

You have specified a Class C IP address, but the subnet mask is not valid for a Class C address. Check that the correct address and subnet mask have been supplied.

Source:  PPPNCF

Explanation:  The IP address is invalid.

Action:  Make sure that you have a valid IP address, then try again.

  Previous Page: You have specified a Class B IP address, but the subnet mask is not valid for a Class B address. Check that the correct address and subnet mask have been supplied.  Next Page: You have specified a Class D IP address, which is not supported. Check that the correct address and subnet mask have been supplied.