Hello-am unsure whether this is valid If I use a class C address and use the first subnet with a /26 mask
> 2nd subnet uses /27
> > 3rd subnet uses /28
> > 4th subnet uses /29
> >
> > which if I am correct takes me to .120
> >
> > can I then use a /26 address again? taking me to .184 ?
> >Or do I have to use /30 from then on?
> > TIA
"daytime =D0=B4=B5=C0=A3=BA "
you can not use a /26 address again, if you do that , .120 is in the .64 subnet, then .120 and .65 are in the same subnet,but .65 have the /27 then it thinks .120 is in the diffirent subnet. but ,you need not have to use /30,you can use /29
my msn is maomao snipped-for-privacy@126.com , if you have some question , we can talk about.
That makes sense- Iwas confusing the issue by trying not to waste any host addresses-so if I used VLSM in a /26 subnet (0-63)then used /27 (64-127)in the next- I would need to "fill " the additional 30(usable) addresses (96-127) with either another /27 or 2*/28 or 4*29 or 8*/30.
I hope that is correct.
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