A tricky one for you all..
jasoni
Member Posts: 16 ■□□□□□□□□□
in CCNA & CCENT
Hi all,
I have a question for you all to answer... This one really made my brain tick.
If we are using a /30 mask on an address we know that we have 2 usable host addresses, one network address, and one broadcast address..
whats the answer (or should I say... ) how many USABLE host address are there if we use the subnet zero command? and what would be an example of their addresses on a 192.168.1.0 address?
I hope this makes some kinda sense... I know what I want to say, but to explain it, I never get it out right
I have a question for you all to answer... This one really made my brain tick.
If we are using a /30 mask on an address we know that we have 2 usable host addresses, one network address, and one broadcast address..
whats the answer (or should I say... ) how many USABLE host address are there if we use the subnet zero command? and what would be an example of their addresses on a 192.168.1.0 address?
I hope this makes some kinda sense... I know what I want to say, but to explain it, I never get it out right
Comments
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EdTheLad
Member Posts: 2,111 ■■■■□□□□□□
Its no tricky at all.
Subnet zero is used to increase the number of subnets not hosts.
So the answer is still 2 hosts for /30
So as an example 192.168.1.1/30 is illegal if subnet-zero is disabled as
this host is defined in the 0 subnet.The first legal address would be 192.168.1.5 part of the first legal subnet 192.168.1.4.Networking, sometimes i love it, mostly i hate it.Its all about the $$$$