Question

The 165 Project Company is setting up a new headquarters in Downtown Springfield. As such, they need to set up a network of publicly available services on that network. Please read the rest of the instructions and answer carefully, the answer boxes will be doing string matches, to the best of your ability. You will get three submissions chances to get it right. They have bought the public IP subnet of 192.165.1.192/26 to be used. You need to divide that subnet into three subnets. One for infrastructure that can support 14 nodes, one for public services that can support 30 nodes, and one for private services that can support 14 nodes. The lowest numeric value IPs should be used for the private services. They will need you to configure a ISC DHCP server that will hand out the last half of each subnets IPs except the last usable IP (that will be used as the default-gateway. The DHCP server will also be the Name Server (DNS Server) (named net-srv.infra.165pro.net) for the three subnets as well. The IP of the DHCP and DNS server is the first usable IP of the infrastructure subnet. The default and max lease time should be set to one week. The domain names for the three subnets should be set to infra.165pro.net, prv.165pro.net, and pub.165pro.net. Please provide in the text box below the three subnets from lowest value network address to highest in the following format: Example: X.X.X.X/XX X.X.X.X/XX X.X.X.X/XX Answer: 192.165.1.192/28 192.165.1.224/27 192.165.1.208/28 Next provide usable configuration for the ISC DHCP to set the default and max lease times to one week in the following format: Example: default-lease-time X; max-lease-time X; Answer: default-lease-time ; max-lease-time ;

Answer 1

The 165 Project Company needs to divide the subnet 192.165.1.192/26 into three subnets for infrastructure, public services, and private services.

Step-by-step explanation:

The correct answer is:

1. 192.165.1.192/28
2. 192.165.1.224/27
3. 192.165.1.208/28

For the ISC DHCP configuration:

• Default-lease-time 604800;
• Max-lease-time 604800;

When dividing the IP subnet 192.165.1.192/26, we need one subnet for infrastructure, one for public services, and one for private services. To support 14 nodes for infrastructure, we need a /28 subnet. The next available subnet is 192.165.1.192/28. To support 30 nodes for public services, we need a /27 subnet.

The next available subnet is 192.165.1.224/27. To support 14 nodes for private services, we also need a /28 subnet. The next available subnet that satisfies the requirement is 192.165.1.208/28.

The ISC DHCP configuration sets the default-lease-time and max-lease-time to one week, which is equivalent to 604800 seconds.

The subnets in ascending order are 192.165.1.192/28, 192.165.1.224/27, and 192.165.1.208/28. The ISC DHCP configuration should set the default and max lease times to one week (604800 seconds).