Join Mike Meyers for an in-depth discussion in this video NAT, part of CompTIA A+ Exam Prep (220-901) Part 5: Networking.
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- About 10, even maybe 15 years ago,…the Internet was starting to, believe or not,…run out of IP addresses and as a result of that,…we began to come up with clever ways…to allow our routers to share one IP address…among many, many computers and the most common…way we do that is good ol' NAT.…Let me show you NAT in action.…What you have in front of you is a typical…what we would call, a gateway router.…Gateway routers are named that way…because they usually only have two connections.…
One is an Internet connection…and the other one usually goes to a switch…where there's lots of other computers.…So in this situation, I've got and WAN…and this IP address is given to me…by my Internet service provider…and then the LAN address is actually…punched in my me when I'm configuring the router itself.…This router is capable of NAT.…So let me show you how NAT works.…Okay, so here's a packet coming from one of the computers…on my local area network.…He's sending out it, he's actually requesting…a webpage or something, I don't know…
The CompTIA A+ 220-901 exam is comprised of six key parts. The fifth, networking, is covered by this course. Instructor Mike Meyers provides an introduction to networking by exploring cables, network IDs, IP addresses, and ports. He explains how to deal with a DNS, configure a router, and set up a wireless network while applying security standards. He also discusses Internet connections, including dial-up, broadband, wireless, and more.
Note: The six courses designed for the CompTIA A+ (220-901) exam preparation include core processing, core hardware, peripherals and building a PC, displays and printers, networking, and laptops and mobile devices.
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- Working with network cables
- Establishing a local area network (LAN)
- Communicating using ping and ipconfig
- Dealing with a DNS
- Configuring routers
- Setting up a wireless network
- Troubleshooting internet connections
- Connecting to a desktop remotely
- Transferring files and selecting file sharing options
Skill Level Beginner
1. Essentials of Networking
2. Local Area Networking
Introduction to TCP/IP15m 4s
Network IDs and subnet mask11m 53s
Dynamic IP addressing9m 59s
Special IP addresses4m 38s
Ping and ipconfig7m 15s
TCP, UDP, and ICMP3m 51s
Port numbers4m 37s
Working with connections6m 24s
Understanding DNS12m 5s
Dealing with DNS8m 19s
Windows naming9m 2s
Configuring routers10m 37s
Advanced router configuration14m 47s
3. Wireless Networking
4. The Internet
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