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...
Tags are small pieces of data added to a packet in order to add VLAN information to it. The tag is a 4 bytes long string (32-bits), as presented in one of the following diagrams. Most network adapters and their drivers will simply pass VLAN tags to the upper layer to handle them. In these cases, Wireshark will see VLAN tags and present them. In more sophisticated adapters and drivers, the VLAN tag will be handled by the adapter itself. This includes some of the most common adapters with Intel and Broadcom Gigabit chipsets. In these cases, you will have to disable the VLAN feature.
Figure 8.16: VLAN tagging and network adapters ...
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