John Mills CCIE #5037 takes us through the rudiments of IP Addressing including dotted decimal notation and classfull addressingDuration : 0:8:29

something about wireshark, this video contains a simple proof in a switched lan, you can use wireshark with etherape, ettercap or some other sniffer. Wireshark (ethereal) is a simple and powerful tool to manage networks.Duration : 0:11:49

Google Tech Talks
August 30, 2006

Van Jacobson is a Research Fellow at PARC. Prior to that he was Chief Scientist and co-founder of Packet Design. Prior to that he was Chief Scientist at Cisco. Prior to that he was head of the Network Research group at Lawrence Berkeley National Laboratory. He’s been studying networking since 1969. He still hopes that someday something will start to make sense.

ABSTRACT
Today’s research community congratulates itself for the success of the internet and passionately argues whether circuits or datagrams are the One True Way. Meanwhile the list of unsolved problems grows.

Security, mobility, ubiquitous computing, wireless, autonomous sensors, content…Duration : 1:21:14

Presenter Ben Erwin talks about the impact of WAN Optimization on TCP based applications in Network Performance Daily’s Whiteboard Series.Duration : 0:3:52

Control de iluminación y vigilancia via protocolo de Internet.

Developed by students of informatics engineering in UPIICSA IPN, we build a parallel port interface to activate an alternate charge by sending a digital signal. The sofware was developed in Visual Basic 6 under the model of client-server aplications using the TCP/IP network protocol.Duration : 0:3:28

http://www.nexeye.com/switchsnarf
SwithSnarf enables monitoring the internet connection of any computer in a network established with a switch.

SwitchSnarf will scan all working computers in the local network and identifie their MAC addresses, IP addresses and Computer Names (Hostnames).

The internet in/out going internet connections of a computer can be monitored in cooperation with any network monitoring programme (sniffer) or the Nexeye Monitoring Enterprise.

No changes are required in the network setup and no additional software is needed on the computer that is monitored.

In a local network established with a switch, the packages are sent to the relevant computer only.

SwitchSnarf utilises ARP packages that are used for identifying the computer details. By capturing the ARP packages that are sent to the gateway, SwitchSnarf monitors the network traffic.
http://www.nexeye.com/switchsnarfDuration : 0:1:57