jeremy9678 wrote:這不是形容遮罩,而是範圍內的ip.
你的虛擬ip為何覺...(恕刪)
10.0.0.0/8 => 10.0.0.0-10.255.255.255
172.16.0.0/12 => 172.16.0.0-172.16.255.255
192.168.0.0/16 => 192.168.0.0-192.168.255.255
不清楚您可以在命令視窗做計算:
gfx wrote:
這不是形容遮罩,而是範圍內的ip.
172.16.0.0/12 => 172.16.0.0-172.16.255.255
172.16.0.0/12 => 172.16.0.0-172.31.255.255
這就是在形容『遮罩』(Subnet Mask)！
172.16.0.0/12 是以CIDR (Classless Inter-Domain Routing)表示
172.16.0.0 用二進位表示 10101100.00010000.00000000.00000000
/12 代表左邊遮罩掉12個位元 11111111.11110000.00000000.00000000，右邊剩下20個位元可以用
xxxxxxxx.xxxx0000.00000000.00000000 ~ xxxxxxxx.xxxx1111.11111111.11111111
所以172.16.0.0/12 就會是 10101100.00010000.00000000.00000000 ~ 10101100.00011111.11111111.11111111
也就是172.16.0.0 ~ 172.31.255.255
IP以10開頭的皆為 Class B 網段，也就是說128.0.0.0 ~ 191.255.255.255 都是屬於 Class B 網段，其中又定義
172.16.0.0 ~ 172.31.255.255 為 Private IP
IP以110開頭的皆為 Class C 網段，也就是說192.0.0.0 ~ 223.255.255.255 都是屬於 Class C 網段，其中又定義
192.168.0.0 ~ 192.168.255.255 (192.168.0.0/16)為 Private IP
所以只要看到192.168開頭的，就絕對不會是Public IP
Mason.Lyu wrote:
172.16.0.0...(恕刪)
Mason.Lyu大果然詳細的說明囉!我想表達就是這個還是Mason.Lyu大懂我!
gfx大也很棒棒!以前去考CCNA算到頭昏眼花了
RouterOS DNS Server AdBlock Configuration
This repository contains a PHP script that will convert some of the filter lists used by AdBlock and uBlock into RouterOS commands to add static entries to the router's DNS server (/ip dns static). Combined with an additional firewall (/ip firewall filter) rule, shown below, this has the effect of blocking adverts (and/or malware, scams, etc., depending on the chosen lists) for any clients which are configured to use the router as their DNS server.
By blocking ads at the DNS server level, adverts are blocked even for locked-down devices such as smartphones and games consoles!
Note that it's generally easiest to configure your DHCP server to push DNS server entries to your clients, where those server entries point back to your router. That way, everything on your network will automatically use the ad-blocking DNS server.
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