广播地址与子网地址的问题
$ifconfig结果如下:
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.18.217.207 netmask 255.255.240.0 broadcast 172.18.223.255
计算出子网地址:172.18.208.0(172.18.11010000.0)
广播地址:172.18.223.255(172.18.11101111.255)
感觉广播地址与子网地址怎么不匹配,这个什么意思?