David Ryan wrote:
>
> G'day all,
> I have subnetted a class C address space into 4 blocks. I would like to
> further subnet one of those blocks into say 2 or 4 subblocks.
>
> I have read the mini-Howto but I am not sure how to do the
> subsubnetting.
Well, it is Monday morning and what the heck. I'm not sure how it
goes, but this is how I think it goes, which someone can correct if
wrong.
1 block
192.168.1.0-255 netmask 255.255.255.0
2 blocks
192.168.1.0-127 netmask 255.255.255.128
192.168.1.128-255 netmask 255.255.255.128
4 blocks
192.168.1.0-63 netmask 255.255.255.64
192.168.1.64-127 netmask 255.255.255.64
192.168.1.128-191 netmask 255.255.255.64
192.168.1.192-255 netmask 255.255.255.64
8 blocks
192.168.1.0-31 netmask 255.255.255.32
192.168.1.32-63 netmask 255.255.255.32
192.168.1.64-95 netmask 255.255.255.32
192.168.1.96-127 netmask 255.255.255.32
192.168.1.128-159 netmask 255.255.255.32
192.168.1.160-191 netmask 255.255.255.32
192.168.1.192-223 netmask 255.255.255.32
192.168.1.224-255 netmask 255.255.255.32
etc. Remember you loose the first and last (lowest and highest) out of
each block as subnet/?? and broadcast address.
--
Terry Collins {:-)}}} Ph(02) 4627 2186 Fax(02) 4628 7861
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