March 2019
Beginner
490 pages
12h 40m
English
book
Learning Python Networking - Second Edition
by José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
Content preview from Learning Python Networking - Second Edition
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IP addresses and ports
IP addresses are addresses that help to uniquely identify a device over the internet. A port is an endpoint for communication in an operating system.
When you connect to the internet, your device is assigned a public IP address, and each website you visit also has a public IP address. So far, we have used IPv4 as an addressing system. The main problem with this is that the internet is running out of IPv4 public address space and so it is necessary to introduce IPv6, which provides a larger address space.
The following are the addresses for total IPv4 and IPv6 space:
- Total IPv4 space: 4, 294, 967, 296 addresses
- Total IPv6 space: 340, 282, 366, 920, 938, 463, 463, 374, 607, 431, 768, 211, 456 addresses
The ports are ...
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