p-smash DoS (ICMP 9 flood)

Summary
It was possible to crash the remote machine by flooding it with ICMP type 9 packets. A cracker may use this attack to make this host crash continuously, preventing you from working properly.
Solution
upgrade your Windows 9x operating system or change it. Reference : http://support.microsoft.com/default.aspx?scid=KB en-us q216141