ip addresing

mrbeekay

can somebody help me with these questions, there are not clear to me. lay down the methodology, thank you.
a. Given the class C IP address 216.21.5.0 subnet mask255.255.255.0 with FIVE numbers of subnets
Determine the custom subnet mask
Calculate the IP address range for the first five subnets

f. Given the class B IP address 150.5.0.0 subnet mask255.255.0.0 with 500 hosts per subnet

Determine the custom subnet mask

Calculate the IP address range for the first five subnets [5 Marks Each]

MrXpert

I hope I understood your question correctly.

/27

255.255.255.224

Here are the valid IPs. I am assuming subnet zero is used. I am not including the broadcast IP address

216.21.5.1 - 216.21.5.30
216.21.5.33 - 216.21.5.62
216.21.5.65 - 216.21.5.94
216.21.6.97 - 216.21.5.126
216.21.6.129 - 216.21.6.190

150.5.0.0
32-9=23
255.255.254.0

150.5.0.1 - 150.5.1.254
150.5.2.1 - 150.5.3.254
150.5.4.1 - 150.5.5.254
150.5.6.1 - 150.5.7.254
150.5.7.1 - 150.5.8.254