Secure Network Administrationintermediate
Match each subnet component for the IPv4 network 172.16.30.0/24 with its corresponding IP address.
Answer
Network address - 172.16.30.0; First usable host address - 172.16.30.1; Last usable host address - 172.16.30.254; Broadcast address - 172.16.30.255
Explanation
### Why this is right
A `/24` block has 256 addresses, from `172.16.30.0` through `172.16.30.255`. The first identifies the network and the final address is its broadcast address. The addresses between those endpoints are available for hosts in the conventional subnet described.
### The pairs
| Item | Matches | Why |
|---|---|---|
| Network address | `172.16.30.0`, identifies the subnet | The first address marks the beginning of the subnet and is not assigned to a device. |
| Broadcast address | `172.16.30.255`, reaches all devices on the subnet | The final address sends traffic to all devices in that subnet. |
| First usable address | `172.16.30.1`, first address available to a host | It follows the reserved network address. |
| Last usable address | `172.16.30.254`, last address available to a host | It precedes the reserved broadcast address. |
### Terms
- **Subnet**: A defined group of IP addresses treated as one logical network.
- **Host**: A networked device that can send or receive traffic.
- **Broadcast**: Traffic addressed to all devices on the subnet.
### Remember
In this `/24` example, the usable range is between the network and broadcast addresses.
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