How to connect an ADSL modem to a Wi-Fi router using a network cable? Connection diagram and setup. What is WAN? What is the difference between the WAN connector and the LAN connector on a router? What is the difference between a WAN connector and a LAN connector?

If you want to know what a WAN is, or how a WAN differs from a LAN, then you have come to the right place. Now let’s try to figure out what these technologies, connectors, connections are, what they are needed for and what the difference is.

I think that in most cases, when someone is looking for information on WAN, they mean the connector on the Wi-Fi router. After all, in almost every instruction for setting up a router you can find this abbreviation. Everyone writes about connecting some cables to WAN connectors, or LAN. Let's go in order:

WAN(Wide Area Network) is global computer network. Simply put, this is the Internet. If we talk about the WAN connector, then this is the connector on the router into which the cable from the provider is connected. The network cable through which the router gains access to the Internet.

On almost all routers this is a blue connector, and it looks like this:

In the photo above you can see that the connector is even labeled. Also, the router usually has an indicator of the connected WAN cable. During normal operation, it should blink actively. And next to the indicator itself they usually draw an icon in the form of a planet.

Now you know what WAN is. Let's take a closer look at how it differs from LAN.

What is the difference between a WAN connector and a LAN connector?

Everything here is also very simple. What is LAN?

LAN(Local Area Network) is the local network. Simply put, these are computers that are connected to each other over a short distance. For example, computers, televisions, mobile devices, which are connected to each other through a router within a home or office. This is a local network.

On routers you can usually find 4 LAN connectors. They are yellow and look like this:

They serve to connect devices to a local network via a network cable.

The difference between WAN and LAN is that WAN is access to the Internet, and LAN is a local network to which devices that are located close to each other can be connected.

I think that's all you need to know about these two designations. You can, of course, delve into technical aspects, abstruse definitions, etc., but this is unlikely to be of interest to anyone.

To use a LAN port as a WAN, you don’t have to sit through manuals or flash an ADSL modem, thereby voiding the warranty. Meanwhile, we have a backup channel that can be used for important tasks that do not tolerate network interruptions.

What can this be useful for? It is no secret that providers are suspicious of large traffic generation, especially if it is “mail” (smtp, pop3). Sending SMS messages via the Internet can also fall into the “spam” category. Even if you reboot the router (changing the IP address), it does not guarantee blocking by the provider. Therefore, the second channel will come in handy here.

If you decide to change your provider, switch from Rostelecom to TTK. Both providers currently do not provide equipment for free - you will need an additional router to work with TTK, because... a standard ADSL modem does not have a WAN RJ-45 interface. You have two options - either buy a router, such as DIR 300 or 620, or reconfigure one of the four LAN ports to the WAN direction. Our method is different in that we will not use special firmware, like DD-WRT or OpenWRT, but will perform all actions on standard firmware (using the example of Dlink 2640 nru)

  Old firmware 

Go to the modem settings. At 192.168.1.1. Finding the point "Additionally" and choose "Interface Grouping". In point Ethernet WAN Port put a dot on the port that we want to use for the WAN connection, for example, LAN1:

For some modems Top Menu is in the left column - they are identical:

Now you need to configure this WAN port. Let's say your provider uses PPPoE authorization (by login and password). This is how it works, for example: TTK. To do this, go to the “Network” tab and select “WAN”. Click the “Add” button:

Name- WAN PPPoE
Connection type- PPPoE
Physical interface- LAN1
PPP username— Here write your login for Internet access
Without authorization - the checkbox should NOT be checked
Password— your password for Internet access
Password confirmation- repeat the password
MTU — 1492

The rest of the settings remain default!

Now plug your ethernet cable into LAN1 and you’re good to go.

  New firmware 

Switch the wire from the modem to the computer to LAN2 before starting the settings!. Let's go to Advanced settings:

Below (scroll with your mouse if it’s not visible) in the menu, put a tick on the item “Make it a WAN”:

Write all questions in the comments.

I noticed that in the comments to various articles on the site, they ask questions about Wi-Fi connection routers to regular ADSL modems. Many people have problems setting up such a connection. But, there is nothing difficult there. In this article we will look at the connection diagram and configuration of the ADSL modem + router combination. We will connect as usual network cable. Which you can buy, or take the one that comes with the router/modem.

Why connect two similar devices at all? If you have ADSL Internet, then it’s clear that you need a modem. There are many modems that do not have the ability to distribute Wi-Fi, but we need Wi-Fi, it’s difficult without it now :)

So, there are two options:

• Buy a new ADSL modem that has the ability to distribute the Internet via wireless technology. There are a lot of such devices on the market now. If you don’t want to worry about making a choice, then call (or go) to your Internet provider, and he will advise you on a specific model and manufacturer. Or offer your device. Many providers have network equipment that they seem to recommend using.
• And the second option (which this article will be about). You can buy a regular Wi-Fi router, any one, and connect it via a network cable to the modem. The modem definitely has network outputs (LAN). The router will simply take the Internet from the modem and distribute it over the air.

As you can see, everything is very simple. We need the modem itself (which should already be configured and distributing the Internet), network cable (which is included with the router), and the Wi-Fi router itself. Now we will connect and configure all this.

By the way, we already have a similar article on. You can view.

Connecting the router to the ADSL modem

Before connecting, Necessarily do it on a Wi-Fi router. Even if it is new, from the store.

Next, take the network cable. We connect one end to the modem in LAN connector (it is usually signed and highlighted in yellow). Your modem may have several LAN connectors. You can connect to any.

We connect the second end to the router in blue WAN connector. Look carefully.

Here is the entire connection diagram. If you reset the settings on the router and your modem distributes IP automatically, then the router should already distribute the Internet via Wi-Fi. And via cable, to the router, you can connect the devices that you had connected to the modem. Here are the instructions, just in case.

Router settings

If it doesn't work automatically, then let's check the settings. We will only configure the router, we will not touch the modem. But your modem must be configured, and the Internet must work through it.

You need to check whether the router settings are set to automatically obtain an IP address. Provided that the modem distributes IP automatically.

Go to your router settings. If you don't know how, then...

Go to the tab WAN. Depending on the company and model, this tab may be called differently. Internet, network, etc.

And see what's in the field WAN Connection Type (WAN connection type) it was found Dynamic IP (Dynamic IP address). Set and save settings. This is the example of TP-Link.

A router is a network device designed to distribute the Internet to several computers or laptops connected to it by cable or via wireless connection WiFi

Before using the router, you need to install it correctly

You can find prices for setting up network equipment in the "" section.

You can get additional instructions and solutions to problems associated with poor working Internet in the section

USB

This port, depending on the router model, is used to connect:

Storage medium (flash drive or NAS)

3G/4G modem for Internet distribution

Printer

POWER Power supply port

Details about ports and setting up routers for the largest providers in Moscow and the Moscow region are described in our materials

Please note that the router can only have one of two types of ports for the ISP cable - WAN(Ethernet cable with connector) or DSL(telephone cable with connector). A router with a DSL connector is suitable for use only with a provider that provides Internet via. Routers with a connector are suitable for providers who offer Internet services over a dedicated line (Ethernet)

Don't confuse it with a telephone cable

The RJ-45 connector is 2 millimeters wider in width than the RJ-12

One of the main criteria when choosing a router is the type of cable that carries the Internet to your apartment or office. It is this cable that needs to be connected to the WAN/Internet (or DSL) port of the router. There are two most common types of connection: wired internet: via a two-wire telephone cable and via a leased line (cable " twisted pair"category 5e or 6)

On a computer or laptop with operating system Windows press Win+R, in the "Open" field enter the command " ping 8.8.8.8 -t" without quotes (this is the Google DNS server address), then click OK. If you have an Internet connection, you will see lines with in the console window. Readings are measured and displayed every second

If there is no Internet connection yet, you can ping the router itself with the command " ping 192.168.1.1 -t". Your router's address can be downloaded to the other two octets: 192.168. 0.1 ... 192.168.10.1 ... 192.168.100.1 ... 192.168.1.254

You can find out the router address in the settings network card- this is discussed in

As you move away from the source Wi-Fi signal or if the interference pattern between the laptop and the router changes, the ping will change

When you are far from the router console command PING will produce error lines "Interval exceeded...", "Transmission failed", "General Failure" and others