Prestige 2602H-6xC Support Notes

Using NAT / Multi-NAT

•What is Multi-NAT?

NAT (Network Address Translation-NAT RFC 1631) is the translation of an Internet Protocol address used within one network to a different IP address known within another network. One network is designated the inside network and the other is the outside. Typically, a company maps its local inside network addresses to one or more global outside IP addresses and "unmaps" the global IP addresses on incoming packets back into local IP addresses. The IP addresses for the NAT can be either fixed or dynamically assigned by the ISP. In addition, you can designate servers, e.g., a web server and a telnet server, on your local network and make them accessible to the outside world. If you do not define any servers, NAT offers the additional benefit of firewall protection. In such case, all incoming connections to your network will be filtered out by the Prestige, thus preventing intruders from probing your network.

The SUA feature that the Prestige supports previously operates by mapping the private IP addresses to a global IP address. It is only one subset of the NAT. The Prestige with ZyNOS V3.40 supports the most of the features of the NAT based on RFC 1631, and we call this feature as 'Multi-NAT'. For more information on IP address translation, please refer to RFC 1631, The IP Network Address Translator (NAT).

•How NAT works

If we define the local IP addresses as the Internal Local Addresses (ILA) and the global IP addresses as the Inside Global Address (IGA), see the following figure. The term 'inside' refers to the set of networks that are subject to translation. NAT operates by mapping the ILA to the IGA required for communication with hosts on other networks. It replaces the original IP source address (and TCP or UDP source port numbers) and then forwards each packet to the Internet ISP, thus making them appear as if they had come from the NAT system itself (e.g., the Prestige router). The Prestige keeps track of the original addresses and port numbers so incoming reply packets can have their original values restored.

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ZyXEL Communications 2602H-6XC manual Using NAT / Multi-NAT, How NAT works
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2602H-6XC specifications

ZyXEL Communications has established itself as a leader in developing versatile networking solutions, and the ZyXEL 2602H-6XC is a testament to the brand’s commitment to excellence in wireless technology. This dual-band wireless router is engineered to deliver robust performance and reliability for both residential and small business environments.

One of the standout features of the ZyXEL 2602H-6XC is its dual-band capability. Operating on both the 2.4 GHz and 5 GHz frequencies, this router enables users to enjoy high-speed internet access while reducing congestion. The 2.4 GHz band is ideal for devices that require a longer range, such as smartphones and tablets, whereas the 5 GHz band benefits bandwidth-intensive activities like online gaming and HD streaming, providing a seamless experience without interruptions.

The device supports the latest Wi-Fi 5 (802.11ac) technology, which enhances wireless performance by offering greater data rates and improved throughput. With combined wireless speeds of up to 1167 Mbps, the ZyXEL 2602H-6XC is designed to accommodate multiple devices simultaneously, making it perfect for busy households or small offices where various tasks are being performed concurrently.

Security is a top priority in today’s digital age, and the ZyXEL 2602H-6XC comes equipped with advanced security features including WPA3 encryption, enabling more secure connections and protecting user data. Additionally, the router includes a built-in firewall and supports VPN passthrough, providing an extra layer of protection for both personal and professional use.

The ZyXEL 2602H-6XC also boasts a user-friendly interface, allowing for straightforward setup and management. Users can easily configure parental controls, prioritize bandwidth for specific devices, and monitor network activity through a web-based interface or compatible mobile app. This ensures that families and businesses can maintain optimal control over their network usage.

On the hardware side, the ZyXEL 2602H-6XC is equipped with multiple Gigabit Ethernet ports, ensuring high-speed wired connections for devices that require stable connections, such as gaming consoles and desktop computers. Furthermore, the inclusion of USB ports allows for network sharing of printers and storage devices, making it a versatile addition to any setup.

In summary, the ZyXEL 2602H-6XC is a powerful and flexible wireless router that integrates modern technologies to enhance connectivity, security, and management. Its dual-band capabilities, support for Wi-Fi 5, robust security features, and user-friendly interface make it an excellent choice for anyone seeking to improve their home or office networking experience.
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