Subnetting, confused.

[ViperXX]

I'm learning how to subnet without a subnet calculator and I'm confused about the subnets part.

10.1.0.0/30
/30 =255.255.255.252
64 subnets
2 hosts
So network is 10.1.0.0
Broadcast is 10.1.0.3
Usable addresses 10.1.0.1, 10.1.0.2

So what about the other 63 subnets?

 

[mv2devnull]

Where did you get that "64 subnets" from?

 

[dave_the_nerd]

keep counting up.

network 10.1.0.0
ip 10.1.0.1|2
broadcast 10.1.0.3
network 10.1.0.4
ip 10.1.0.5|6
broadcast 10.1.0.7

etc.

/30 creates 64 subnets out of a "standard" /24 subnet. (.0-.255 in the fourth octet.)

 

[ViperXX]

keep counting up.

network 10.1.0.0
ip 10.1.0.1|2
broadcast 10.1.0.3
network 10.1.0.4
ip 10.1.0.5|6
broadcast 10.1.0.7

etc.

/30 creates 64 subnets out of a "standard" /24 subnet. (.0-.255 in the fourth octet.)

Ok, I see.