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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Example 2 – broadcast storm caused by SMB
In one of my client's networks, I received an urgent call that a remote office was disconnected from the HQ. Some network details are as follows:
- The remote office addresses are on subnet 172.30.121.0/24, with a default gateway 172.30.121.254.
- The HQ addresses are on subnet 172.30.0.0/24. The connections between the remote offices and the HQ are with L3 IP-VPNs over an MPLS network.
To solve the problem, I did the following:
- I tried to ping the servers in the HQ. I got no response.
- I called the service provider that provides the lines to the center, and they said that on their monitoring system they didn't see any load on the line.
- I pinged the local router, 172.30.121.254, and got no response. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.