My understanding was it means ip range of 1 to 254.
192.168.2.1 to 192.168.1.254
No, it refers to the number of bits. You can use either of: 192.168.2.0 255.255.255.0 192.168.2.0/24 Both of these cover the range: 192.168.2.1 - 192.168.1.255
Might be worth searching for a network howto on CIDR subnet formats. -- Richard Huxton Archonet Ltd
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