Connecting to the Internet
-
Upload
kelly-kirk -
Category
Documents
-
view
21 -
download
0
description
Transcript of Connecting to the Internet
![Page 1: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/1.jpg)
Connection Technologies and IP Addressing
CONNECTING TO THE INTERNET
![Page 2: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/2.jpg)
ASYMMETRIC VS. SYMMETRIC• Asymmetric
• Download speed > Upload speed
• Technology limitation
• Symmetric
• Download speed = upload speed
![Page 3: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/3.jpg)
FIBER
• Only a few cities
• 1000Mbps (1Gbps) symmetric
• fiber.google.com
![Page 4: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/4.jpg)
![Page 6: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/6.jpg)
IP ADDRESSES
![Page 7: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/7.jpg)
Packets traveling over a network have a header that includes a source IP address and a destination IP address.
![Page 8: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/8.jpg)
Every computer or device on a network has to have an IP address
![Page 9: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/9.jpg)
An IP address is more like a phone number than a street address.
(334) 123-4567
192.168.101.45
![Page 10: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/10.jpg)
IP addresses are a 32-bit binary number…
11000000101010000110010100101101
… that can be written in a 4-part number
192.168.101.45
![Page 11: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/11.jpg)
Value of each Octet can be 0 thru 255
28 = 256
![Page 12: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/12.jpg)
Network Managers can assign STATIC IP addresses to some or all computers on a network
![Page 13: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/13.jpg)
Dynamic Host Control Protocol (DHCP)
IP addresses can be assigned dynamically by a server or router
![Page 14: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/14.jpg)
EVERY WEBSITE HAS AN IP ADDRESS
206.16.212.91
157.166.248.10cnn.com
al.gov
![Page 15: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/15.jpg)
URL IS A USER FRIENDLY REFERENCE TO AN IP ADDRESS ON THE INTERNET
![Page 16: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/16.jpg)
When you type in a URL, a domain name server (DNS) matches that URL to the IP address to let your computer find the correct website.
![Page 18: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/18.jpg)
If the network you are on is connected to the internet, it has an public IP address visible to the internet.
INTERNET
Private Network
![Page 19: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/19.jpg)
Public IP addresses are assigned by your ISP and may be static or dynamic
Static IPs are better for when you need remote access, such as gaming or remote desktop.
http://whatismyipaddress.com
![Page 20: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/20.jpg)
Private IP Addresses cannot be assigned to computers on the internet, and computers on the internet cannot communicate directly with a private ip address.
• 10.0.0.0 – 10.255.255.255
• 172.16.0.0 – 17.31.255.255
• 192.168.0.0 – 192.168.255.255
![Page 21: Connecting to the Internet](https://reader036.fdocuments.net/reader036/viewer/2022062717/56812a7a550346895d8e0616/html5/thumbnails/21.jpg)
A device that does network address translation (NAT) coordinates communication between your private ip address and a website or another computer or network on the internet.