Lisa Bock explains the of hardware taps and port spanning to tap into the data stream and sniff traffic along with using various attack methods to sniff on a switched network.
- [Narrator] Before sniffing network traffic…and attempting to analyze packets,…a solid understanding of the network architecture,…along with recognizing common network protocols,…is essential.…As data flows across the network,…the sniffer captures each packet,…decodes the packet's raw bits,…and then displays the field values in the packet…according to the appropriate RFC or other specification.…There are many uses for packet analysis,…which includes helping to identify bottlenecks,…and monitoring traffic to maintain…efficient network data transmission.…
Tapping into the data stream, and what you will see,…will depend on the network architecture.…In today's networks, there are two basic types…of Ethernet environments:…shared or hub-based or a switched network.…On a wireless network,…802.11 B, G, or N will be a hub.…Which allows to to see all the traffic.…If tapping into a wired network,…you will most likely tap into a switch,…and then you will only see your own traffic.…
In order to see all of your traffic,…network administrators use port mirroring or SPAN,…
Note: The topics in this course will prepare you for key objectives on the Certified Ethical Hacker exam. Find an overview of the certification and the exam handbook at https://www.eccouncil.org/programs/certified-ethical-hacker-ceh/.
- Sniffing network traffic
- Passive vs. active attacks
- Comparing IPv4 to IPv6
- MAC and macof attacks
- Investigating DHCP attacks
- Detecting ARP and DNS spoofing
- Sniffing tools and techniques
Skill Level Beginner
1. Sniffing Overview
2. MAC Attacks
6. Sniffing Tools and Techniques
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