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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Getting ready
When these problems occur, the network you usually call on to solve problems will be very slow or it has stopped working.?
Some important facts to remember:
- Broadcasts are not forwarded by routers.
- Broadcasts are not forwarded between VLANs (this is why VLANs are called broadcast domains), so every VLAN is a broadcast domain by itself.
- Error packets are not forwarded by LAN switches, such as packets with the wrong CRC, packets smaller than the minimum size of 64 bytes, and so on.
- Multicasts are forwarded through switches unless configured otherwise.
- Multicasts are forwarded through routers only if the routers are configured to do so.
- A reasonable number of broadcasts are transmitted in every network. This is how networks work, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.