IP-CIDR对应子网地址范围查询

通过配置IP-CIDR让指定范围的IP走特定proxy，记录规则备查

CIDR block  	  IP range (network - broadcast)  	  Subnet Mask  	  IP Quantity  
  192.168.1.0/32  	  192.168.1.0 - 192.168.1.0  	  255.255.255.255  	  1  
  192.168.1.0/31  	  192.168.1.0 - 192.168.1.1  	  255.255.255.254  	  2  
  192.168.1.0/30  	  192.168.1.0 - 192.168.1.3  	  255.255.255.252  	  4  
  192.168.1.0/29  	  192.168.1.0 - 192.168.1.7  	  255.255.255.248  	  8  
  192.168.1.0/28  	  192.168.1.0 - 192.168.1.15  	  255.255.255.240  	  16  
  192.168.1.0/27  	  192.168.1.0 - 192.168.1.31  	  255.255.255.224  	  32  
  192.168.1.0/26  	  192.168.1.0 - 192.168.1.63  	  255.255.255.192  	  64  
  192.168.1.0/25  	  192.168.1.0 - 192.168.1.127  	  255.255.255.128  	  128  
  192.168.1.0/24  	  192.168.1.0 - 192.168.1.255  	  255.255.255.0  	  256  
  192.168.0.0/23  	  192.168.0.0 - 192.168.1.255  	  255.255.254.0  	  512  
  192.168.0.0/22  	  192.168.0.0 - 192.168.3.255  	  255.255.252.0  	  1024  
  192.168.0.0/21  	  192.168.0.0 - 192.168.7.255  	  255.255.248.0  	  2048  
  192.168.0.0/20  	  192.168.0.0 - 192.168.15.255    255.255.240.0  	  4096  
  192.168.0.0/19  	  192.168.0.0 - 192.168.31.255    255.255.224.0  	  8192  
  192.168.0.0/18  	  192.168.0.0 - 192.168.63.255    255.255.192.0  	  16384  
  192.168.0.0/17  	  192.168.0.0 - 192.168.127.255   255.255.128.0  	  32768  
  192.168.0.0/16  	  192.168.0.0 - 192.168.255.255   255.255.0.0  	          65536  
  192.168.0.0/15  	  192.168.0.0 - 192.169.255.255   255.254.0.0  	          131072  
  192.168.0.0/14  	  192.168.0.0 - 192.171.255.255	  255.252.0.0  	          262144  
  192.168.0.0/13  	  192.168.0.0 - 192.175.255.255	  255.248.0.0  	          524288  
  192.160.0.0/12  	  192.160.0.0 - 192.175.255.255	  255.240.0.0  	          1048576  
  192.160.0.0/11  	  192.160.0.0 - 192.191.255.255	  255.224.0.0  	          2097152  
  192.128.0.0/10  	  192.128.0.0 - 192.191.255.255	  255.192.0.0  	          4194304  
  192.128.0.0/9  	  192.128.0.0 - 192.255.255.255	  255.128.0.0  	          8388608  
  192.0.0.0/8  	          192.0.0.0 - 192.255.255.255     255.0.0.0  	          16777216  
  192.0.0.0/7  	          192.0.0.0 - 193.255.255.255  	  254.0.0.0  	          33554432  
  192.0.0.0/6  	          192.0.0.0 - 195.255.255.255  	  252.0.0.0  	          67108864  
  192.0.0.0/5  	          192.0.0.0 - 199.255.255.255  	  248.0.0.0  	          134217728  
  192.0.0.0/4  	          192.0.0.0 - 207.255.255.255  	  240.0.0.0  	          268435456  
  192.0.0.0/3  	          192.0.0.0 - 223.255.255.255  	  224.0.0.0  	          536870912  
  192.0.0.0/2  	          192.0.0.0 - 255.255.255.255  	  192.0.0.0  	          1073741824  
  128.0.0.0/1  	          128.0.0.0 - 255.255.255.255  	  128.0.0.0  	          2147483648  

在线查询：https://www.dan.me.uk/ipsubnets