close
TCP/IP
internet
| server
router /
\ NAT \
switch / switch - client
/ \ |
server server client
61.16.1.1(ip)/24(netmask)
24 = 255.255.255.0=11111111,11111111,11111111,0 (24個1)
遮罩 255.255.255.0 = 61.16.1.1 ~ 61.16.1.255 判定同範圍
router 路由器
如果遮罩範圍內跑switch 範圍外跑 router
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