What Is the Difference Between Modem And Router

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You can begin with your Modem and router if asked to describe how your house internet connection operates. Modems and Routers are two of the extremely common PC peripherals. However, many people do not understand the work of each one. Although the Modems and Routers may look the same, they each serve various purposes.

Luckily, the works of the Modems and Routers are easy to understand. A Modem is not similar to a Router and knows the difference between a Modem and a Router is vital for both educational and useful purposes. Both devices are critical to installing up a Wi-Fi network.

Here are the vital differences between the Modem and router that drives home the Internet operates. It is essential to understand the difference between a modem and a router if you wish to set up your connection or troubleshoot issues with your Internet connection.

What Is A Modem?

A Modem is the initial point of contact for internet signal in your house or small office connection. The Modem attaches to your ISP system with the help of coaxial wire or a telephone cable, depending on if you have a Cable or a DSL internet facility.

Modems are available as DSL Modems and Cable Modems. Cable Modems use a Coaxial Wire Connection (same to Cable Television) to join the Cable Port on your house or small office, & attached to your Internet facility provider’s cable network.

What Is A Router?

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A Router is a device that permits different ways to share a network connection. The first router only has several Ethernet ports that allow machines to attach to a local area network (LAN). The router also operates in the other route by sharing data sent from your PC back to the system.

Routers permit several PCs and other devices, like mobile phones and tablets, to connect a similar network. Routers are generally straight and have antennas sticking out of them. Modern Routers are commonly used to generate a Wi-Fi network so that many devices such as tablets, laptops, & phones can attach wirelessly to an internet system.

What is the Difference between Modem and Router?


  • A modem is a device that only attaches to one device: either a house Computer or a router.
  • A router can connect to various devices in a network, also via Ethernet cables or via Wi-Fi.
  • Router arises in Network Layer (Layer 3), and the Modem comes in Data Link Layer (Layer 2) of the OSI model.


  • A modem does not display the data it encrypts or decrypts, and therefore it passes through any possible risk to attached PCs.
  • Routers inspect data packs to decide their location and, consequently, be firewalls to check for attacks on the connection.
  • Routers create a gripping case for themselves, often comprising a hardware firewall as part of the pack.
  • Intrinsically, a modem frequently offers no such protection and can be risky if attached directly to the Internet via one.

Integrated Modem and Router:

  • Internet Service Providers, such as Comcast, frequently hire an integrated modem and router to their consumers.
  • It is called the entrance. It joins both functions into a particular device. Such a mixed invention has benefits: The ISP can handle the equipment, occasionally at all.

Multiple Devices:

  • If you want a Wi-Fi network for various devices, then you have a router with a built-in modem.
  • If you need a modem-only tool, it typically wired, and you must attach it directly to use the Internet. To connect many devices, you have to purchase a router and plug it into the Modem.


  • A modem is a regulator/detector. Data transmission over the Internet is through cables in analog format. But electronic tools such as computers and smartphones only know digital communication.
  • A router forms a network and permits many devices to attach to this network. The router will connect to the Modem, so all devices connected to the router through the Internet.


  • Connecting to the Internet via a modem is possible via an Ethernet cable, which usually starts to faster speeds than connecting via Wi-Fi.  
  • You can also attach through Ethernet with a router, and modem-router boxes, if you will see inside, are possibly just a router and Modem joined together.
  • Purchasing the best and correct router for your requirements and ensures it’s ready for the NBN, and it will assist in achieving higher Wi-Fi speeds.


  • Prices are generally the same if relating a similar for the model in the router and modem spaces; yet, if merging the two into a ‘modem router,’ the charges can be very high.
  • The ‘Cobra’ AC5300 Wi-Fi modem-router charges approximately $780 at a local cost.
  • A similar AC5300 router charges just below $700, so you pay $50 extra to attach to the Internet.

Combined Routers and Modems

Many Internet Service Providers offer a modem and router in a particular device. The device has the semiconductor technology and software to provide both functions, performing as a modem that interacts with your Internet Service Provider and working as a router to make a home connection. Many Internet Service Providers also bundle a smartphone interface into a similar box to access their VOIP offerings.

Although a connecting element has its charms—just one device covering your office —there are also some drawbacks. Using different ways provides more flexibility in what you can do with your home network and allows you to ensure that you’re using the most excellent quality devices. And you can save some money by using your techniques instead of the methods offered by your Internet Service Provider.

Final Conclusion:

When subscribing to an Internet Service Provider, they generally offer you a box that attaches to your smartphone line and your PC. This box is frequently both a router and a modem. A modem is a device that transfers the connection with your Internet Service Provider via your telephone line; on the other hand, a router is a device used to attach two networks. Read here to know about the difference between the Modem and the router.

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