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Setting up an Ethernet bridge in Ubuntu Linux (Hacking Illustrated Series InfoSec Tutorial Videos)

Setting up an Ethernet bridge in Ubuntu Linux


        In a previous video, I showed how to set up an Ethernet bridge in Windows XP. This is very useful for sniffing traffic leaving your LAN for the purposes of IDS (Intrusion Detection System), network monitoring, statistics or just plain snooping. In this video, I cover setting up an Ethernet bridge in Linux. Other tools used in this video include Wireshark, TCPDump, Etherape and Driftnet.


Download:
http://blip.tv/file/get/Irongeek-ethernetbridgefixed996.mp4  

Article:

https://help.ubuntu.com/community/NetworkConnectionBridge

Commands used:

sudo apt-get install bridge-utils
ifconfig
sudo tcpdump -i mybridge -s 0 -w out.cap
sudo etherape -i mybridge
sudo driftnet -i mybridge

Script to setup MAC bridging:

ifconfig eth0 0.0.0.0
ifconfig eth1 0.0.0.0
brctl addbr mybridge
brctl addif mybridge eth0
brctl addif mybridge eth1
ifconfig mybridge up


 

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