I have the following problem. Think I have an inside ip address on my pix 192.168.1.128/25.. now I have to subnet so that I have 1 32 ip subnet, 1 64 ip subnet end 4 8 ip subnets. Is it possible? The reason I'm asking is that I can't subnet 64-32-8-8-8-8 but 32-64-8-8-8-8. I have to add some other insides on my pix to keep traffic phisically in different subnets.
64-32-8-8-8-8 will work, but 32-64-8-8-8 will not due to the way bit boundaries work.
192.168.1.128 /27 will give you the following subnet:
network: 192.168.1.128 broadcast: 192.168.1.159 for a total of 30 hosts.
192.168.1.160 /26 will give you the following subnet:
network: 192.168.1.128 broadcast: 192.168.1.191 for a total of 62 hosts.
However note that 192.168.1.160 lies in the middle of this subnet, overlapping with the first subnet. Because of the bit boundaries, when you use VLSM subnetting, you have to hierarchily break them down from largest to smallest. This is why you can have
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