Network Address Translation, Nat | D-Link DRO-210i instruction

Network Address Translation

When a computer wants to connect to the Internet, it needs a legal and unique Global IP address to traverse the internet. With the explosion of Internet, the unique IP address space available is insufficient. NAT solves this problem by allocating single or a small range of legal Global IP addresses. A NAT router translates the unregistered local (or Private) IP addresses to the registered global (or Public) Internet IP addresses.

NAT allows hosts within a private network to transparently access hosts in the external network. The NAT sessions are unidirectional, outbound from the private network. NAT does not advertise private network addresses to the external network, hence preventing direct access to the enterprises’ private network from the internet. So in addition to solving the addressing problem, NAT also acts as a security agent.

The router provides ALG (Application Level Gateway) support for common applications to enable smooth operation behind NAT. The ALG Support involves:

Allowing client applications to use dynamic ephemeral TCP/ UDP ports to communicate with the server applications, even though firewall may allow only a limited number of known ports. In the absence of an ALG, either the ports would get blocked or the network administrator would need to explicitly open up a large number of ports in the firewall — rendering the network vulnerable to attacks on those ports.

Converting the network layer address information found inside an application payload to addresses acceptable by the hosts on either side of the firewall/NAT.

6.1 NAT

6.1.1 NAT Interface Configuration

NAT can be enabled or disabled on a specific interface. Typically NAT must be enabled at the WAN interface used for internet connectivity.

Select NAT → Interface Configuration to configure the NAT Interface Configuration as explained below.

Web UI

NAT Interface Configuration

Interface Name The interface on which NAT can be enabled/disabled.

Status	Select Enable to activate NAT on the corresponding interface.

Press the Apply button.

Dlink DRO-210i User Guide

DRO-210i specifications

The D-Link DRO-210i is an innovative smart security camera designed to bring peace of mind to homeowners and businesses alike. With its sleek design and advanced features, the DRO-210i stands out as a reliable surveillance solution that caters to a range of security needs.

One of the main features of the DRO-210i is its high-definition video streaming capability. With a resolution of up to 1080p, users can enjoy crisp and clear video footage, ensuring that every detail is captured. This camera is equipped with a wide-angle lens, offering a 130-degree field of view, which allows for comprehensive monitoring of large areas, making it ideal for both indoor and outdoor use.

The DRO-210i utilizes advanced infrared night vision technology, enabling it to capture clear images even in complete darkness. This feature ensures that security is maintained 24/7, offering peace of mind regardless of lighting conditions. The camera automatically switches to night mode when it detects low light, ensuring continuous monitoring without manual intervention.

Another standout characteristic of the DRO-210i is its motion detection capabilities. The camera features customizable motion zones and alerts, allowing users to define specific areas for monitoring. When motion is detected, the camera can send real-time alerts to the user's smartphone or email, ensuring prompt responses to any potential security threats.

The integration of two-way audio allows for real-time communication through the camera. Users can listen and speak through the camera's built-in speaker and microphone, providing an added layer of security. This feature is particularly useful for engaging with visitors or deterring potential intruders.

For convenient storage options, the DRO-210i supports both local and cloud storage. Users can insert a microSD card for local recording or opt for D-Link’s cloud storage service for easy and secure access to footage from anywhere in the world. This flexibility ensures that important recordings are safely stored and easily retrievable.

The camera's compatibility with smart home systems is an essential aspect of its design. The DRO-210i works seamlessly with various smart home ecosystems, allowing users to integrate it into their existing setups, enhancing their overall smart home experience.

In summary, the D-Link DRO-210i is a feature-rich, user-friendly security camera equipped with high-definition video, night vision, motion detection, two-way audio, and flexible storage options. Its compatibility with smart home technologies makes it an ideal choice for those seeking a comprehensive surveillance solution that not only enhances security but also integrates with their lifestyle.