Networking Overview: Difference between revisions
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= Tutorials = | = Tutorials = | ||
<blockquote> | <blockquote> | ||
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</blockquote><!-- Tutorials --> | </blockquote><!-- Tutorials --> | ||
= Non Routable IP Ranges = | |||
<blockquote> | |||
IP addresses that by default are not routed by domain-name servers. | |||
<syntaxhighlight lang="yaml"> | |||
127.0.0.1: 127.0.0.1 # Available IPs: 1 | |||
10.0.0.0/8: 10.0.0.0 – 10.255.255.255 # Available IPs: 16,777,214 | |||
172.16.0.0/12: 172.16.0.0 – 172.31.255.255 # Available IPs: 1,048,574 | |||
192.168.0.0/16: 192.168.0.0 – 192.168.255.255 # Available IPs: 65,534 | |||
</syntaxhighlight> | |||
</blockquote><!-- Non Routable IP Ranges --> | |||
= Basics = | = Basics = | ||
<blockquote> | <blockquote> | ||
Information sent over a network is layered like an onion.<br> | Information sent over a network is layered like an onion.<br> | ||
As you progress | As you progress closer to your application, the outer layers are removed,<br> | ||
leaving only information that is useful to each stage. | leaving only information that is useful to each stage. | ||
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|} | |} | ||
</blockquote><!-- 5-layer TCP/IP model --> | </blockquote><!-- 5-layer TCP/IP model --> | ||
Latest revision as of 02:10, 10 May 2024
Tutorials
code a TCP/IP stack https://www.saminiir.com/lets-code-tcp-ip-stack-1-ethernet-arp/
Non Routable IP Ranges
IP addresses that by default are not routed by domain-name servers.
127.0.0.1: 127.0.0.1 # Available IPs: 1 10.0.0.0/8: 10.0.0.0 – 10.255.255.255 # Available IPs: 16,777,214 172.16.0.0/12: 172.16.0.0 – 172.31.255.255 # Available IPs: 1,048,574 192.168.0.0/16: 192.168.0.0 – 192.168.255.255 # Available IPs: 65,534
Basics
Information sent over a network is layered like an onion.
As you progress closer to your application, the outer layers are removed,
leaving only information that is useful to each stage.<!-- a pseudocode piece of network data --> <datalink> <network> <transport> <application/> </transport> </network> </datalink>
5-layer TCP/IP model
- layer protocol unit address 1 physical 10 Base T, 802.11 Bits n/a 2 datalink Ethernet, WiFi Frames MAC addr 3 network IP Datagram IP addr 4 transport TCP, UDP Segment Ports 5 application HTTP, SMTP, .. Messages n/a