Practice Example #7B: 255.255.255.192 (/26)
Written on 23:23 by Ahmet Emir
Now, this is area Class B subnetting gets easy. Since the third octet has a 255 in the mask
section, whatever cardinal is listed in the third octet is a subnet number. However, now that
we accept a subnet cardinal in the fourth octet, we can subnet this octet aloof as we did with
Class C subnetting. Let’s try it out:
172.16.0.0 = Network address
255.255.255.192 = Subnet mask
Subnets? 210 = 1024.
Hosts? 26 – 2 = 62.
Accurate subnets? 256 – 192 = 64. The subnets are apparent in the afterward table. Do these
numbers attending familiar?
Broadcast abode for anniversary subnet?
Accurate hosts?
The afterward table shows the aboriginal eight subnet ranges, accurate hosts, and broadcast
addresses:
Subnet 0.0 0.64 0.128 0.192 1.0 1.64 1.128 1.192
First host 0.1 0.65 0.129 0.193 1.1 1.65 1.129 1.193
Last host 0.62 0.126 0.190 0.254 1.62 1.126 1.190 1.254
Broadcast 0.63 0.127 0.191 0.255 1.63 1.127 1.191 1.255
Notice that for anniversary subnet amount in the third octet, you get subnets 0, 64, 128, and 192 in
the fourth octet.
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