A wide area network (WAN) is a telecommunications network or computer network that extends over a large geographical distance. For example, the Internet is a wide are network. This chapter is an overview of RUT240 routers’ WAN section.
The information in this page is updated in accordance with the RUT2XX_R_00.01.12 firmware version.
The Operation Modes window lets you determine how the router will be connecting to the internet. You can chose between three types of WAN – Mobile, Wired and Wi-Fi. You can also setup backup WAN options in case your main connection goes down.
You can choose one main WAN and one or two (or none) backup WAN options. To choose your main WAN just check the desired option (wired, mobile or Wi-Fi) in the Main WAN column (first from the left), to choose a backup WAN(s), check the desired option(s) in the Backup WAN column (second from the left). Above is an example of a configuration that uses wired as Main WAN and mobile as Backup WAN. The Operation Modes tab also displays each interfaces name, WAN IP address and Protocol in use. To configure a WAN interface more in depth, click the Edit button located to the right of the desired interface. Each interface configures separately, to avoid redundancy this chapter will only overview the configuration of the wired WAN interface, since mobile contains less information and Wi-Fi is basically the same.
The Common Configuration section is used to configure different protocols for WAN interfaces.
The Static protocol is used when the source of your internet doesn’t have a DHCP server enabled. Therefore, in order to connect to the internet, you have to make configurations in accordance to that source.
The Advanced Settings tab will change in accordance to which network protocol is selected. For the Static protocol you can turn NAT on or off, override the router’s MAC address, MTU and define the gateway’s metric.
The DHCP protocol should be used when the source of your internet has a DHCP server enabled. If that is the case, when you select the DHCP protocol you can use it as is, because most networks will not require any additional advanced configuration.
For the DHCP protocol you can turn NAT on or off, specify custom DNS servers, define the gateway metric, override the router’s MAC address, set MTU and more.
The PPPoE protocol is mainly used if you have a DSL internet provider.
The General configuration tab for the PPPoE protocol is mainly used to specify your PAP/CHAP login information, but you can also configure some additional, more specific settings.
For the PPPoE protocol you can turn NAT on or off, specify custom DNS servers, define the gateway metric, configure LCP echo settings and more.
IP Aliases are a way of defining or reaching a subnet that works in the same space as the regular network. This is useful if you need to reach the router that is located in the same network but in a different subnet. If you have a static IP configuration on your computer and don’t want to change it every time you need to reach a router in a different subnet, you can configure an IP alias in order to do so.
As you can see, the configuration is very similar to the static protocol; in the example above an IP address with a 99th subnet is defined. In this case, if some device has an IP in the 99th subnet (e.g., 192.168.99.xxx) and the subnet’s gateway metric is “higher” and the device is trying to reach the internet it will reroute it’s traffic not to the gateway that is defined in common configurations but through the one that is specified in IP aliases.
You may also define a broadcast address and a custom DNS server for your IP Aliases in the Advanced Settings tab.
Backup WAN is a function that allows you to back up your primary connection in case it goes down. There can be up to two backup connections selected at one time. In that case, when the primary connection fails, the router tries to use the backup with the higher priority and if this one is unavailable or fails too, then the router tries the backup with the lower priority.
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