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When installing a new Ubuntu server instance, the installer asks for a subnet in CIDR notation and then it asks for an IP address without CIDR notation.

Why can't I just specify the IP address in CIDR notation? Wouldn't that include all of the necessary information? I seem to always mess up the subnet in CIDR notation during installation because I don't use that method anywhere else.

Izzo
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1 Answers1

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Theoretically when entering the subnet address in CIDR notation it would be sufficient information to enter

<your IP address>/<mask>

rather than

<your IP address & ^<mask>>/<mask>

although perhaps Ubuntu insists on the latter. Have you tried it?

Craig Hicks
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