Chapter 4

Advanced Configuration

If you want to modify a service you have created, select it and click Update this service. Make changes. Click Save Settings to save your changes, or click Cancel Changes to undo them. Click Exit to return to the UPnP screen.

If you want to delete a service you have created, select it and click Delete selected service. Click Save Settings to save your changes, or click Cancel Changes to undo them. Click Exit to return to the UPnP screen.

On the UPnP screen, click Add to List, and configure as many entries as you would like, up to a maximum of 30. To delete an entry, select it and click Delete selected application.

Click Show Tables to see the details of your entries. The UPnP Forwarding Table List appears.

UPnP Forwarding Table List

Click Refresh to update the on-screen information. Click Close to exit this screen and return to the UPnP screen.

On the UPnP screen, click Save Settings to save your changes, or click Cancel Changes to undo them.

Setup > One-to-One NAT

One-to-One NAT (Network Address Translation) creates a relationship that maps valid external IP addresses to internal IP addresses hidden by NAT. A device with an internal IP address may be accessed at the corresponding external valid IP address.

To create this relationship, define internal and external IP address ranges of equal length. Once the relationship is defined, the device with the first internal IP address is accessible at the first IP address in the external IP address range, and so forth.

For example, you have a Local Area Network (LAN) for which the ISP has assigned the IP address range of 209.19.28.16 to 209.19.28.31, with 209.19.28.16 used as the Wide Area Network (WAN) or NAT public IP address of the Router. The address range of 192.168.168.1 to 192.168.168.255 is used for the devices on the LAN. With One-to-One NAT, the devices with the internal IP addresses of 192.168.168.2 to 192.168.168.15 may be accessed at the corresponding external IP addresses.

NOTE: The Router’s WAN IP address should not be included in the range you specify.

Setup > One-to-One NAT

One-to-One NAT

One-to-One NAT  Select Enable to use the One-to-One NAT function.

Add Range

Private Range Begin  Enter the starting IP address of the internal IP address range. This is the IP address of the first device that can be accessed from the Internet.

Public Range Begin  Enter the starting IP address of the public IP address range. This IP address is provided by the ISP. (Do not include the Router’s WAN IP Address.)

Range Length  Enter the number of IP addresses in the range. The range length cannot exceed the number of valid IP addresses. To map a single address, enter 1.

Click Add to List, and configure as many entries as you would like, up to a maximum of ten. To delete an entry, select it and click Delete selected range.

NOTE: One-to-One NAT affects how the firewall functions work. Access to LAN devices from the Internet is allowed unless additional Deny access rules are configured on the Firewall > Access Rules screen.

Click Save Settings to save your changes, or click Cancel Changes to undo them.

Setup > MAC Clone

Some ISPs require that you register a MAC address, which is a 12-digit code assigned to a unique piece of hardware for identification. The MAC Clone feature “clones” your network adapter’s MAC address onto the Router, so you don’t have to call your ISP to change the registered MAC address to the Router’s MAC address.

10/100 4-Port VPN Router

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Linksys RV042 manual Setup One-to-One NAT, Setup MAC Clone, Add Range
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RV042 specifications

The Linksys RV042 is a robust and versatile VPN router designed for small to medium-sized businesses, offering a wide array of features that cater to networking demands. Boasting dual WAN ports, the RV042 allows users to have two internet connections, providing load balancing and failover capabilities. This means that the router can automatically switch to a secondary Internet connection if the primary fails, ensuring uninterrupted connectivity crucial for business operations.

A key feature of the RV042 is its support for Virtual Private Networking (VPN). It can accommodate up to 50 VPN tunnels simultaneously, enabling secure remote access for employees who need to connect to the office network from various locations. The router supports both PPTP and L2TP/IPsec protocols, which provide a layer of encryption, ensuring that data remains secure while transmitted over public networks.

In terms of connectivity, the Linksys RV042 is equipped with four Ethernet ports, supporting speeds of up to 1 Gbps through its LAN (Local Area Network) connections. This allows for high-speed data transfer within the office premises, making it suitable for bandwidth-intensive applications such as video conferencing and large file transfers. Additionally, the router features an integrated firewall, which helps protect the network from external threats by filtering incoming and outgoing traffic.

The RV042 also excels in its Quality of Service (QoS) capabilities, which enable users to prioritize traffic for more critical applications. This is particularly beneficial in environments where multiple applications rely on the same bandwidth, allowing businesses to maintain optimal performance for essential tasks.

For businesses looking to manage their network more effectively, the RV042 offers a web-based interface that simplifies configuration and monitoring. The user-friendly dashboard allows administrators to track network usage, configure access controls, and set up security measures easily.

Overall, the Linksys RV042 VPN router stands out for its reliability, security features, dual WAN support, and ease of management. It is an excellent choice for organizations that require a secure, stable, and high-performance networking solution, enabling seamless connectivity and productivity in an increasingly digital business landscape.
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