CODEWITHSUNDEEP
network-programmingipsubnet
Jonhas
Jonhas

Reputation: 125

Calculating IP address from the following statement

I would like to not be so specific with my question, but I do not understand it and would like to get some help. The statement says:

The interface should be addressed in the next (upwards) available /27 subnet in the 192.168.20.0/24 address space.

I do not understand what it means. I understand that:

192.168.20.0/24 would mean a subnet mask of 255.255.255.0, and the address range would be 192.168.20.0 - 192.168.20.255. But what does the statement mean with the next upward available /27 subnet in that address space?

Upvotes: 2

Views: 485

Answers (1)

hobbs
hobbs

Reputation: 240789

The next /27 that's not used by something else. If 192.168.20.0/27 is available, take it. Otherwise, if 192.168.20.32/27 is available, take it. Otherwise, if 192.168.20.64/27 is available... etc. Which address within that subnet you should use, and how you determine what is "available" are both unclear from the context you gave, but probably provided somewhere.

Upvotes: 3

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