Non-NAT Mode

Non-NAT Mode

In this mode, the Router functions as the traditional Gateway and forwards the packets via routing protocol. The Hosts in different subnets can communicate with one another via the routing rules whereas no NAT is employed. For example: If the DMZ port of the Router is in WAN mode, the Hosts in the subnet of DMZ port can access the servers in Internet only when the Static Router rules permit.

Classic Mode Note:

In Non-NAT mode, all the NAT forwarding rules will be disabled.

Classic Mode

It's the combined mode of NAT mode and Non-NAT mode. In Classic mode, the Router will first transport the packets which are compliant with NAT forwarding rules and then match the other packets to the static routing rules. The matched packets will be transmitted based on the static routing rules and the unmatched ones will be dropped. In this way, the Router can implement NAT for the packets without blocking the packets in the different subnet of the ports.

3.1.3 WAN

TL-ER6020 provides the following six Internet connection types: Static IP, Dynamic IP, PPPoE/Russian PPPoE, L2TP/Russian L2TP, PPTP/Russian PPTP and BigPond. To configure the WAN, please first select the type of Internet connection provided by your ISP (Internet Service Provider).

Tips:

It’s allowed to set the IP addresses of both the WAN ports within the same subnet. However, to guarantee a normal communication, make sure that the WAN ports can access the same network, such as Internet or a local area network.

Choose the menu Network→WAN to load the configuration page.

1)Static IP

If a static IP address has been provided by your ISP, please choose the Static IP connection type to configure the parameters for WAN port manually.

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TP-Link TL-ER6020 manual 3.1.3 WAN,  Non-NAT Mode,  Classic Mode, Static IP, Tips

TL-ER6020 specifications

The TP-Link TL-ER6020 is a robust and efficient router designed for small to medium-sized businesses seeking reliable network performance and advanced features. Combining dual WAN capability with comprehensive security features, it ensures that businesses can maintain consistent and secure internet connectivity, even during peak usage times or in the event of a failure from one ISP.

One of the primary features of the TL-ER6020 is its dual WAN support, which allows users to connect two different internet sources. This not only enhances reliability through load balancing but also ensures redundancy. In cases where the primary WAN connection fails, the router can seamlessly switch to the secondary connection, minimizing downtime and maintaining business operations.

Security is a critical aspect of any network appliance, and the TL-ER6020 does not disappoint. It comes equipped with multiple security features, including advanced firewall capabilities, IP/MAC/URL filtering, and DoS attacks prevention. These tools work together to provide a secure network environment, safeguarding sensitive business data from unauthorized access and potential threats.

The router also supports VLAN (Virtual Local Area Network) technology, which allows businesses to segment their networks for better performance and security. By creating separate networks for different departments or functions, companies can enhance their network management and control traffic flow more efficiently.

Additionally, the TL-ER6020 features quality of service (QoS) capabilities that prioritize network traffic based on user needs. This ensures that critical applications, such as VoIP or video conferencing, receive the bandwidth they require for optimal performance, while less critical traffic is deprioritized during peak times.

For user management, the TL-ER6020 includes an intuitive web-based interface that simplifies configuration and monitoring. Administrators can easily manage network settings, view statistics, and troubleshoot issues without the need for extensive technical expertise.

In terms of physical specifications, the TL-ER6020 is built with reliability in mind, featuring cooling vents to prevent overheating and an efficient power supply. Its compact design allows for easy placement in various environments, whether in a server room or on a desk.

Overall, the TP-Link TL-ER6020 is a solid choice for businesses looking to build a secure, versatile, and high-performance network. Its combination of dual WAN capabilities, strong security features, VLAN support, and QoS make it a comprehensive solution for modern networking needs.