Benefits of Private IPv4 Addressing

BD

Private IPv4 addressing is a technique used to conserve public IPv4 address space by assigning non-routable IP addresses to devices on an internal network. These non-routable IP addresses are used only within the internal network and are not exposed to the public internet.

The two goals or reasons to implement private IPv4 addressing on a network are:

1. Conserve IPv4 addresses: As the number of devices connected to the internet is growing exponentially, the availability of public IPv4 addresses is becoming scarce. To overcome this issue, private IPv4 addressing is used to conserve public IPv4 addresses by using them only for public-facing devices that require a globally unique IP address.

2. Reduce the risk of network security breach: By using private IPv4 addresses, internal devices are not directly exposed to the internet. This means that external threats such as hackers or malicious software cannot directly access the internal network without first compromising a device that has access to the internal network. As a result, private IPv4 addressing can help to reduce the risk of network security breaches.

The other answer options are not the primary reasons to implement private IPv4 addressing. Let's take a brief look at them:

A. Comply with PCI regulations: PCI regulations require that sensitive information is protected while it's being transmitted over a network. Private IPv4 addressing alone does not ensure this protection, and additional security measures such as encryption must be implemented to comply with PCI regulations.

C. Reduce the size of the forwarding table on network routers: Private IPv4 addressing does not necessarily reduce the size of the forwarding table on network routers. In fact, it can increase the size of the forwarding table as it requires additional configuration on routers to enable communication between internal devices and public-facing devices.

E. Comply with local law: There are no local laws that require the use of private IPv4 addressing. However, local laws may require the use of other security measures to protect sensitive information while it's being transmitted over a network.