10/100 16-Port VPN Router

Setup Tab - One-to-One NAT

One-to-One NAT (Network Address Translation) creates a relationship that maps valid external addresses to internal addresses hidden by NAT. Devices with internal addresses may be accessed at the corresponding external IP addresses, as long as they are valid.

To create this relationship between internal and external addresses, define internal and external address ranges of equal length. (The Router’s WAN IP address may not be included in the range of external addresses.) Once that relationship is defined, the device with the first internal address is accessible at the first IP address in the external address range, the second device at the second external IP address, and so forth.

For example, consider a LAN to which the ISP has assigned external IP addresses ranging from 209.19.28.16 to 209.19.28.31, with 209.19.28.16 used as the Router’s WAN IP (NAT public) address.The internal address range of 192.168.168.1 to 192.168.168.255 is used for the devices on the LAN. Typically, only devices that have been designated as public LAN servers will be accessible from the Internet. However, with One-to-One NAT, the machines with the internal IP addresses of 192.168.168.2 to 192.168.168.15 may be accessed at the corresponding external IP addresses.

One-to-One NAT does not change how the firewall functions work. Access to LAN devices from the Internet will not be allowed unless the appropriate network access rules are established, the appropriate forwarding entries are enabled, or the appropriate authenticated user sessions are established.

Before configuring the One-to-One NAT settings, set up the appropriate Access Rules on the Firewall - Access Rules screen, or set up the appropriate forwarding entries on the Setup - Forwarding screen.

To use the One-to-One NAT feature, click the Enable box. To set up a One-to-One NAT entry, follow these instructions:

1.In the Private Range Begin field, enter the beginning IP address of the private address range being mapped. This will be the IP address of the first machine that will be accessible from the Internet.

2.In the Public Range Begin field, enter the beginning IP address of the public address range being mapped. (This will be assigned by the ISP.) The Router’s WAN IP (NAT public) address cannot be included in this range.

3.Enter the number of IP addresses in the Range Length field. This number may not exceed the number of valid external IP addresses. To map a single address, use a Range Length of 1.

4.Click the Add to list button, and configure as many ranges as you would like, up to a maximum of 64. To delete an entry, select it and click the Delete selected range button.

Click the Save Settings button to save your settings, or click the Cancel Changes button to undo your changes.

Chapter 6: Setting up and Configuring the Router

Figure 6-20: One-to-One NAT

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Setup Tab - One-to-One NAT

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Linksys RV016 manual Setup Tab One-to-One NAT
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RV016 specifications

The Linksys RV016 is a robust VPN router designed for small to medium-sized businesses, providing secure and reliable network connectivity. This device offers versatile features, catering to the demands of advanced users while maintaining ease of use for those less experienced with networking technologies.

One of the standout characteristics of the Linksys RV016 is its ability to handle multiple WAN connections. It features dual WAN ports, which enable load balancing and failover support. This ensures that in the event one internet connection fails, the other takes over seamlessly, minimizing downtime and enhancing productivity. The RV016 is equipped with eight Ethernet ports, providing sufficient connectivity for various devices within an office environment.

Security is a paramount consideration in the design of the RV016. The device supports a robust VPN (Virtual Private Network) capability, allowing secure remote access for employees working from home or traveling. The router supports both IPSec and PPTP VPN protocols, ensuring versatile and secure communication channels. Additionally, it offers advanced firewall features, including stateful packet inspection (SPI) and denial-of-service (DoS) attack prevention, which safeguard the network from unauthorized access and external threats.

Linksys has also incorporated Quality of Service (QoS) features into the RV016, allowing users to prioritize their network traffic. This is particularly useful for businesses that rely on voice over IP (VoIP) services or have high bandwidth applications, ensuring that critical applications receive the necessary bandwidth for optimal performance.

The RV016 supports a variety of network management protocols, including DHCP, DNS, and static routing, making it easy to integrate into existing network infrastructures. Its web-based interface simplifies configuration and management, enabling IT staff to efficiently set up network parameters without the need for extensive training.

In summary, the Linksys RV016 stands out as a feature-rich VPN router that combines security, reliability, and ease of use. Its multiple WAN support, advanced security features, and network management capabilities make it an ideal choice for businesses seeking a dependable networking solution. Whether handling remote access or managing network performance, the RV016 provides the necessary tools to keep business operations running smoothly.
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