Question

1. Given a network 192.168.139.0(with unassigned netmask), please partition this network into one subnet according to the requirements of host number either 6, 12 and 18.

1. List all three subnets

1. 6 hosts: 192.168.139.0/29
2. 12 hosts:
3. 18 hosts:

2. What is the netmask?

1. 6 hosts: 255.255.255.248
2. 12 hosts:
3. 18 hosts:

3. What is the host range of each subnet?

  

4. In order to let this network addresses to access to a remote public network, what network services is needed in addition to routing. List all services that apply and describe your reasoning.

Answer 1

a)
6 hosts: 192.168.139.0/29
12 hosts: 192.168.139.0/28
18 hosts: 192.168.139.0/27
b)
6 hosts: 255.255.255.248
12 hosts: 255.255.255.240
18 hosts: 255.255.255.224
c)
6 hosts, host range:192.168.139.248 to 192.168.139.255 (0-7)
12 hosts, host range:192.168.139.240 to 192.168.139.255 (0-15)
18 hosts, host range:192.168.139.224 to 192.168.139.255 (0-31)