A private network will be planned and designed for this particular company and with this type of network planning, private IP addresses will be put in place to prevent public routing. The purpose of a private IP addressing scheme is to allow an organization to issue their devices IP addresses from a private network range. By using a private address scheme, it will allow this company to use a small portion of public IP addresses and with these limits; all network devices can be mapped within private IP addresses to external IP addresses. In order to create an IP address schema, we will take into account how many workstations will be in use, how many servers will be place and what type of virtualization will in place and where switches will be placed on the network, along with firewall, etc. With all equipment and locations where this equipment will be placed, we will have to issue IP addresses to all devices on this network design. So we will assign the following IP address to the 8 networks and 365 devices:
Network #1 – External Firewall and Router 1:
NID: 172.16.0.0/28 Subnet mask: 255.255.255.240
First Useable IP Address: 172.16.0.1
Last Useable IP Address: 172.16.0.14
Broadcast: 172.16.0.15
Hosts: 14
Network #2 – 3 DMZ Servers:
NID: 172.16.0.16/28 Subnet Mask: 255.255.255.240
First Useable IP Address: 172.16.0.17
Last Useable IP Address: 172.16.0.3
Broadcast: 172.16.0.31
Hosts: 14
Network #3 – Router 1, Internal Firewall and Router 2:
NID: 172.16.0.32/28 Subnet Mask: 255.255.255.240
First Useable IP Address: 172.16.0.33
Last Useable IP Address: 172.16.0.46
Broadcast: 172.16.0.47
Hosts: 14
Network #4 – Switch 1 and 3 Servers:
NID: 172.16.0.48/28 Subnet Mask:
