保留地址段	地址起始	IP地址数量	用途
0.0.0.0/8	0.0.0.0 – 0.255.255.255	16,777,216	软件
10.0.0.0/8	10.0.0.0 – 10.255.255.255	16,777,216	内网
100.64.0.0/10	100.64.0.0 – 100.127.255.255	4,194,304	内网
127.0.0.0/8	127.0.0.0 – 127.255.255.255	16,777,216	主机(本机)
169.254.0.0/16	169.254.0.0 – 169.254.255.255	65,536	本地子网(DHCP Failed)
172.16.0.0/12	172.16.0.0 – 172.31.255.255	1,048,576	内网
192.0.0.0/24	192.0.0.0 – 192.0.0.255	256	内网
192.0.2.0/24	192.0.2.0 – 192.0.2.255	256	“TEST-NET”
192.88.99.0/24	192.88.99.0 – 192.88.99.255	256	6to4 anycast
192.168.0.0/16	192.168.0.0 – 192.168.255.255	65,536	内网
198.18.0.0/15	198.18.0.0 – 198.19.255.255	131,072	内网
198.51.100.0/24	198.51.100.0 – 198.51.100.255	256	“TEST-NET-2″
203.0.113.0/24	203.0.113.0 – 203.0.113.255	256	“TEST-NET-3″
224.0.0.0/4	224.0.0.0 – 239.255.255.255	268,435,455	预留
240.0.0.0/4	240.0.0.0 – 255.255.255.254	268,435,455	预留
255.255.255.255/32	255.255.255.255	1	广播