What is a router?

Welcome Delta Sigma Pi

  • Accessibility
  • Sales:

    Home:

    1-800-426-7235

    Business:

    1-866-426-0911

    Chat Now >

    Visit Sales Support Page >


    Order Support:

    Order Lookup >

    Visit Order Support Page >

    Technical Support >

Lenovo
All
  • All
  • Laptops
  • Desktops
  • Workstations
  • Monitors
  • PC Accessories & Electronics
  • Tablets
  • Servers & Storage
  • Servers Accessories
  • Sign In / Create Account
    My Lenovo Account
    Keep track of your wishlist, orders, and rewards all in one place
    Sign In / Create Account
    Welcome Back!
    Access your order, subscriptions, saved carts, rewards balance, and profile
    View My Account
    Orders
    View & track your orders
    Rewards
    Earn & redeem Rewards
    Profile
    Edit name, password, and account settings
    Wishlist
    Manage a wishlist of your favorite products
    Products
    Manage your devices, accessories
    Product Registration
    Register your product and/or update your warranty dates
    Sign Out
  • My Lenovo Rewards
  • Cart
  • Products
  • Solutions
  • Services
  • Support
  • About Lenovo
  • Deals
  • Student
  • Gaming
  • AI
  • Digital Workplace
  • Hybrid Cloud
  • Edge
  • Sustainability
  • TruScale
  • Solutions by Industry
  • Alliance Partners
  • Other Solutions
  • Resources
TEMPORARILY UNAVAILABLE
DISCONTINUED
Temporary Unavailable
Cooming Soon!
. Additional units will be charged at the non-eCoupon price. Purchase additional now
We're sorry, the maximum quantity you are able to buy at this amazing eCoupon price is
Sign in or Create an Account to Save Your Cart!
Sign in or Create an Account to Join Rewards
View Cart
Remove
Your cart is empty! Don’t miss out on the latest products and savings — find your next favorite laptop, PC, or accessory today.
item(s) in cart
Some items in your cart are no longer available. Please visit cart for more details.
has been deleted
Please review your cart as items have changed.
of
Contains Add-ons
Subtotal
Proceed to Checkout
Yes
No
Popular Searches
What are you looking for today ?
Trending
Recent Searches
Items
All
Cancel
Top Suggestions
View All >
Starting at
  • Black Friday in July! Limited-time Doorbusters + Buy more, Save more!  Shop Now >

  • My Lenovo Rewards! Earn 3%-9% in rewards and get free expedited delivery on select products. Join for Free >

  • Buy online, pick up select products at Best Buy. Shop Pick Up >

  • Lease-to-own today with Katapult. Get started with an initial lease payment as low as $1! * Learn More >

Home > Glossary > What is a router?
Glossary Hero
Learn More
StarStar

Annual Sale

Lenovo Laptop SaleLenovo Laptop Sale

Laptop Deals

Desktop DealsDesktop Deals

Desktop Deals

Workstation DealsWorkstation Deals

Workstation Deals

StoreStore

Pick Up Today at Best Buy

ControllerController

Gaming PC & Accessory Deals

MouseMouse

PC Accessories & Electronics Deals

MonitorMonitor

Monitor Deals

Tablet and phoneTablet and phone

Tablets & Phones Deals

ServerServer

Server & Storage Deals

Discount tagDiscount tag

Clearance Sale


What is a router?

A router is a device that helps connect multiple computer networks together and allows them to communicate with each other. It acts as a central hub, directing network traffic and ensuring that data packets are sent to the correct destinations.

Why do I need a router?

You need a router to establish a network connection in your home or office. It enables multiple devices, such as computers, smartphones, and tablets, to share a single internet connection and communicate with each other. A router also provides network security features and allows you to set up wireless WiFi networks.

How does a router work?

A router works by receiving data packets from connected devices and determining the best path for each packet to reach its destination. It uses routing tables and protocols to make these decisions. Once the path is determined, the router forwards the packet to the appropriate network segment or device.

What is the difference between a router and a modem?

A router and a modem are two different devices that serve different purposes. While a router connects multiple devices to a network and directs traffic, a modem connects your network to the internet service provider (ISP) and establishes the internet connection. In many cases, routers and modems are combined into a single device called a "router modem" or "gateway."

Can I use a router without an internet connection?

Yes, you can use a router without an internet connection. Routers can be used to create local networks, allowing devices to communicate with each other even if there is no internet access. This is useful for tasks such as file sharing, device communication, and local multiplayer gaming.

What is a local area network (LAN)?

LAN refers to a network of devices connected within a small geographic area, such as a home, office, or school. Routers are commonly used to establish and manage LANs, allowing devices to communicate and share resources within the network.

What is a wide area network (WAN)?

WAN refers to a network that spans a large geographical area, connecting multiple local area networks (LANs) together. The internet can be considered a massive WAN that connects networks from around the world. Routers play a crucial role in transmitting data across WANs by determining the best paths for data packets.

What is a wireless router?

A wireless router is a type of router that allows devices to connect to the network without the need for physical cables. It uses WiFi technology to transmit data wirelessly between devices and the router. This enables the convenience of mobile connectivity and eliminates the need for wired connections.

Can I connect multiple routers to my network?

Yes, it is possible to connect multiple routers to your network. This can be done to extend the network coverage or create separate network segments. However, it requires proper configuration to avoid conflicts in internet protocol (IP) addresses and ensure seamless communication between the routers.

What is port forwarding on a router?

Port forwarding is a feature on routers that allows incoming internet traffic to be directed to a specific device or service within your network. It is commonly used to enable remote access to devices or set up services such as web servers, gaming servers, or IP cameras.

What is quality of service (QoS) on a router?

QoS is a feature on routers that prioritizes network traffic to ensure that critical applications, such as video streaming or online gaming, receive higher bandwidth and better performance. It allows you to allocate bandwidth based on specific rules or prioritize devices within your network.

What is a guest network on a router?

A guest network is a separate WiFi network created on a router specifically for guests or visitors. It provides internet access while keeping them isolated from your main network for security reasons. Guest networks usually have their own service set identifier (SSID) and can have limited access or bandwidth restrictions.

What is a firmware update for a router?

A firmware update is a software update specifically for your router's operating system. We may release firmware updates to fix bugs, improve security, add new features, and enhance the performance and compatibility of the router. Regularly updating your router's firmware is important to ensure optimal functionality and security.

What is the difference between a consumer router and an enterprise router?

Consumer routers are designed for home or small office use and typically offer basic features such as WiFi connectivity, firewall, and basic network management. Enterprise routers, on the other hand, are designed for larger networks and offer advanced features like extensive security options, high-performance routing protocols, scalability, and redundancy to meet the demands of complex corporate networks.

Is it necessary to update my router's firmware?

Yes, it is highly recommended to update your router's firmware regularly. Firmware updates often include important security patches, bug fixes, and performance improvements. By keeping your router's firmware up to date, you ensure that your network remains secure and functions optimally.

How can I check my router's firmware version?

To check your router's firmware version, you can usually access the router's administration interface through a web browser. The exact steps may vary depending on the router model, but typically, you can enter the router's IP address in the browser's address bar and log in using your credentials. Once logged in, you should be able to find the firmware version information in the settings or system section.

What is the demilitarized zone (DMZ) feature on a router?

The DMZ feature on a router allows you to place a device outside of your network's firewall, making it directly accessible from the internet. This can be useful for hosting public services or games that require unrestricted access. However, enabling DMZ should be done with caution, as it exposes the device to potential security risks.

Can I use a router with internet protocol version 6 (IPv6)?

Yes, many modern routers support IPv6, the latest version of the internet protocol. IPv6 provides a larger address space, improved security, and other enhancements compared to the older internet protocol version 4 (IPv4). If your internet service provider) (ISP) provides IPv6 connectivity, you can configure your router to support IPv6 and enable it on your network.

What is router traffic monitoring?

Router traffic monitoring is the process of analyzing and tracking the data traffic flowing through your router. It allows you to monitor network usage, identify bandwidth-hungry devices or applications, and gain insights into your network's performance. By monitoring router traffic, you can make informed decisions about network optimization, bandwidth allocation, and security.

Can I use a router as a network switch?

Yes, some routers have built-in ethernet ports that can be used as network switches. By connecting devices to these ports, you can expand your wired network and share the internet connection. However, it's important to disable the router's dynamic host configuration protocol (DHCP) server when using it as a switch to avoid conflicts with your main router.

Looking for a Great Deal?
Shop Lenovo.com for great deals on A+ Education PCs, Accessories, Bundles and more.
Shop Deals Now

  • Legion 7i Gen 9 (16″ Intel) Gaming Laptop
    Starting at
    $1,699.99
    Learn More
  • ThinkPad X9 15 Aura Edition (15ʺ Intel) Laptop
    Starting at
    $1,127.97
    Learn More
  • Yoga Book 9i (13” Intel)
    Starting at
    $1,999.99
    Learn More
  • Yoga 9i 2-in-1 Aura Edition (14″ Intel) Laptop
    Starting at
    $1,439.99
    Learn More
  • ThinkPad P1 Gen 7 (16″ Intel) Mobile Workstation
    Starting at
    $1,871.22
    Learn More
  • Shop
    • Student Deals
    • K-12 Student Laptops
    • Student Accessories
    • Laptops by Major
    Education resource
    Explore
    • What is STEM?
    • Best Laptops for College
    • Student & Teacher Discounts
    • Lenovo Sustainability Programs
    Education carry case

    Stem Articles
    See All STEM Articles
    • Online STEM Education

    • STEM Career Tips & Resources

    • Women in STEM

    • STEM Educator Training

    • STEM Grants & Funding

    • STEM Education: Coding for Kids

    • STEM Education: Robotics

    • STEM Education: Biotechnology

    • STEM Education: Sustainability

    • STEM Education: AI & ML

    While every effort has been made to ensure accuracy, this glossary is provided for reference purposes only and may contain errors or inaccuracies. It serves as a general resource for understanding commonly used terms and concepts. For precise information or assistance regarding our products, we recommend visiting our dedicated support site, where our team is readily available to address any questions or concerns you may have.

    Why Lenovo?

    Go Greener with Leno...

    Lenovo is committed to Smarter Climate Action with lower energy laptops, use of sustainable materials and packaging, and available CO2 Offset Services.
    Learn More
    pastel background

    Get It Now, Pay For ...

    Lenovo has multiple financing option: the Lenovo Credit Card, installment plans, and lease-to-own financing op...
    Learn More
    pastel background

    Productivity & Peace of Mind

    Stay productive with Premium Care Plus - 24/7 priority support and coverage against accidental damage. Power through your day with our Smart Performance and extended battery solutions.
    Learn More
    pastel background

    Fast & Secure

    Get the most from your laptop with Lenovo’s state-of-the-art Smart Performance, delivering powerful, all-in-on...
    Learn More
    pastel background

    Assistance and Suppo...

    Chat with a trained professional who can help you find the right products, place or check on an order, or setup your Education laptop.
    Contact Us
    pastel background
    Enter email to receive Lenovo marketing and promotional emails. Review our Privacy Statement for more details.
    Please enter the correct email address!
    Email address is required
    • Facebook
    • Twitter
    • Youtube
    • Pinterest
    • TikTok
    • Instagram
    Select Country / Region:
    Country
    AndroidIOS

    About Lenovo

    • Our Company
    • News
    • Investors Relations
    • Compliance
    • ESG
    • Product Recycling
    • Product Security
    • Product Recalls
    • Executive Briefing Center
    • Lenovo Cares
    • Careers
    • Formula 1 Partnership

    Products & Services

    • Laptops & Ultrabooks
    • Smarter AI for You
    • Desktop Computers
    • Workstations
    • Gaming
    • Tablets
    • Servers, Storage, & Networking
    • Accessories & Software
    • Services & Warranty
    • Product FAQs
    • Outlet
    • Deals
    • Lenovo Coupons
    • Cloud Security Software
    • Windows 11 Upgrade

    Resources

    • Legion Gaming Community
    • Lenovo EDU Community
    • Lenovo Pro Community
    • Lenovo Pro for Business
    • My Lenovo Rewards
    • Lenovo Financing
    • Lenovo Trade-in
    • Affiliate Program
    • Affinity Program
    • Employee Purchase Program
    • Lenovo Partner Hub
    • Laptop Buying Guide
    • Where to Buy
    • Glossary

    Customer Support

    • Contact Us
    • Policy FAQs
    • Return Policy
    • Shipping Information
    • Order Lookup
    • Register a Product
    • Replacement Parts
    • Technical Support
    • Forums
    • Provide Feedback
    © 2025 Lenovo. All rights reserved.
    PrivacyCookie Consent ToolSite MapTerms of UseExternal Submission PolicySales terms and conditionsAnti-Slavery and Human Trafficking Statement
    Compare  ()
    x
    Call

    Need Help? Call: 

    1-800-426-7235
    Select Your Store
    Add items to your cart?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in the new store?
    No Yes. Add in Lenovo Pro

    close_icon

    Sign up and receive up to $100
    off your next purchase.
    Click here for offer details
    Are you shopping for a business?

    No, Thanks

    Click here for offer details
    *Offer valid for new subscribers only. Not valid on previous purchases.
    Lenovo Privacy Policy
    Thanks for signing up!
    You should receive an email from us within the next 2 hours
    *Offer valid for new subscribers only. Not valid on previous purchases.
    Lenovo Privacy Policy
    An error occurred while submitting your request.
    Please try again later.