A network address translation () is a technique that allows the translation of addresses to addresses and vice versa. Private IP addresses are reserved for use within a specific local area network () and cannot be directly accessed from the internet. On the other hand, public IP addresses are globally unique and enable devices to communicate across the internet.
A or typically handles the NAT process, serving as an intermediary between the private IP addresses of the local network and the public IP addresses of the internet. The router receives packets from devices with private IP addresses, replaces the source IP with the public IP, and forwards the packets to their intended destination on the internet. Similarly, incoming packets from the internet are sent to the router, which then translates the public IP to the appropriate private IP, allowing the packet to reach the intended device on the LAN.
is the allotted period during which an IP address is assigned to a device by the Dynamic Host Configuration Protocol () server. DHCP is responsible for automatically assigning and managing IP addresses within a network. By utilizing DHCP, the network administrator can ensure efficient IP address utilization by dynamically leasing them to devices as needed, rather than permanently assigning them.
Furthermore, s often provide additional network configuration options such as subnet mask, default gateway, and DNS server addresses. These settings are distributed to client devices to support proper network connectivity. DHCP also plays a role in network security by enabling protocols. When enabled, devices must authenticate with the DHCP server to obtain an IP lease, ensuring the and security of the network.
Keywords
private ip | dhcp server | nat | gateway | dhcp | integrity | authentication | router | public ip | lan | ip lease |
