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What's 24 in "192.168.15.0/24"?

Fresh5 days ago
Mar 15, 20268607 views
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Problem

What's the meaning of in the following command?

Error Output

route add -net 192.168.15.0/24 192.168.8.10

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Fix for: What's 24 in "192.168.15.0/24"?

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It is the short way of representing a subnet mask. As Steffen Opel points out in his answer, this is called CIDR notation and the number simply indicates the prefix size used to construct the subnet mask. So means that the first bits (out of 32 for …

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