June 2017
Intermediate to advanced
446 pages
10h 10m
English
Content preview from Mastering Python Networking
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The Internet Protocol (IP)
As network engineers would tell you, network engineers "live" at the IP layer, which is layer 3 on the OSI model. IP has the job of addressing and routing between end nodes, among others. The addressing of IP is probably its most important job. The address space is divided into two parts: the network and the host portion. The subnet mask indicated which portion in the address consist of the network and which is the host. Both IPv4, and later, IPv6 expresses the address in the dotted notation, for example 192.168.0.1. The subnet mask can either be in a dotted notation (255.255.255.0) or use a forward slash to express the number of bits that should be considered in the network bit (/24).
IPv4 Header (source: https://en.wikipedia.org/wiki/IPv4) ...
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