IP Subnet Mask

Number of Host IDs

Number of Bits

255.255.255.0

254

24

255.255.255.128

126

25

255.255.255.192

62

26

255.255.255.224

30

27

255.255.255.255

1

32

Before You Begin 15

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ZyXEL Communications 28641 user manual IP Subnet Mask Number of Host IDs Number of Bits