Packet Sniffing Tools- Packet Sniffers
A Packet Analyzer (also known as a network analyzer, protocol analyzer or packet sniffer or
for particular types of networks, an Ethernet
Sniffer or wireless sniffer)is a computer program piece of computer Hardware that can intercept and log traffic that passes over a digital network or part of a network As data stream flow across the network, the sniffer captures each Packet and, if needed, decodes the packet's raw data, showing the values of various fields in the packet, and analyzes its content according to the appropriate other specifications.
Packet Sniffers Can :-
· Analyze network
problems
·
Detect Network
intrusion attempts
·
Detect network misuse
by internal and external users
·
Documenting regulatory
compliance through logging all perimeter and endpoint traffic
·
Gain information for
effecting a network intrusion
·
Isolate exploited
systems
·
Monitor WAN bandwidth
utilization
·
Monitor network usage
(including internal and external users and systems)
·
Monitor data-in-motion
·
Monitor WAN and endpoint
security status
·
Gather and report
network statistics
·
Filter suspect content
from network traffic
·
Serve as primary data
source for day-to-day network monitoring and management
·
Spy on other network
users and collect sensitive information such as login details or users cookies
(depending on any content encryption methods that may be in use)
·
Reverse engineer
proprietary protocols used over the network
·
Debug client/server
communications
·
Debug network protocol
implementations
·
Verify adds, moves and
changes
·
Verify internal
control system effectiveness (Firewalls, access control, Web filter,spam
filter, proxy)

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