March 2018
Intermediate to advanced
626 pages
17h 32m
English
book
Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Content preview from Network Analysis Using Wireshark 2 Cookbook - Second Edition
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How it works...
For end-to-end communication, any node is required to resolve the 48-bit Ethernet MAC address associated to the layer 3 IPv4 or IPv6 network address.
When the layer 3 network is IPv4, ARP is used to resolve the MAC address associated with the IPv4 address. The ARP packet format is as follows:
ARP packet format
The resolving node will send an ARP request (OpCode = 1) that broadcasts a MAC address (ff.ff.ff.ff.ff.ff). The sender hardware address will be set to the MAC address of the originating node, and the sender protocol address will be set to the IP address of the originating node. The target hardware address will be set ...
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