From the course: CompTIA A+ (220-901) Cert Prep: 5 Networking
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TCP, UDP, and ICMP
From the course: CompTIA A+ (220-901) Cert Prep: 5 Networking
TCP, UDP, and ICMP
- On behalf of the fathers of the internet, I would like to apologize for something. You see, you've been taught that the protocol that we use to power the internet is called TCP/IP. But if you look at it very closely you'll see it says TCP slash IP, and there's a reason for that. There really isn't just one protocol called TCP/IP. There's lots and lots and lots of protocols. For example, the IP means Internet Protocol, and that just has to do with the numbering system, how to give everybody an IP address. So on the TCP part, that's really kind of a misnomer too, because there isn't just a TCP protocol. Now keep in mind, this part is how we get data between computers. This gives us a phone number. This says, "How do we talk over the phone?" So TCP is the most common way to talk on the phone, but there's other ones, for example, UDP and ICMP. So let's go through each one of these. First of all, the reason we call it TCP/IP is because TCP, the Transmission Control Protocol, is by far…
Contents
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Introduction to TCP/IP15m 4s
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Network IDs and subnet mask11m 53s
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Dynamic IP addressing9m 59s
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Special IP addresses4m 38s
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NAT2m 11s
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Ping and ipconfig7m 15s
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TCP, UDP, and ICMP3m 51s
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Port numbers4m 37s
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Working with connections6m 24s
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Understanding DNS12m 5s
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Dealing with DNS8m 19s
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Windows naming9m 2s
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Net command8m 6s
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Netdom command5m 19s
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Windows name resolution11m 20s
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Routers3m 32s
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Configuring routers10m 37s
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Advanced router configuration14m 47s
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