smurf攻击是很简单的，它有一些IP（广播地址）地址列表，发出了一些伪造的数 据包（ICMP echo request）从而导致一场广播风暴，可以使受害主机（使它成为伪造包 的源地址）崩溃。-enormously attack is very simple, it has some IP (radio address) address list, issued some fake data packets (ICMP echo request) resulting broadcast storm victims can host (making it forged packet source address) collapse.