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QID:N64 wrong answers? - havenlad - 10-09-2012
192.168.20.24 /29 - default gateway is what?
the network is incremented by 8 so we are in the 192.168.20.24 - 31 range
The answer says the default gateway is .25. Surely that should be 24?
Re: QID:N64 wrong answers? - forumsupport - 10-12-2012
The given explanation is clear enough but here I try again:
Please note that multiples of the increment 8 are subnet IDs, i.e. they are network addresses or subnet addresses and you cannot use them as host addresses.
subnet mask = /29 = 255.255.255.248
subnet increment = 256 - 248 = 8
Therefore, subnet IDs are in multiples of 8.
Here subnet ID: 192.168.20.24/29
Subnet host address range: 192.168.20.25 - 192.168.20.30
Broadcast address: 192.168.20.31
So the first usable host address is 192.168.20.25 = default gateway address.
Re: QID:N64 wrong answers? - havenlad - 10-12-2012
Thanks yes that does make sense. For some reason I was trying to use the network number as the default gateway - sorry to waste your time