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How do I stop DHCP services on a particular ethernet port in Linux ? I was trying to take full control of an ethernet port of my computer to inject packets into the device plugged into it without being interfered by DHCP request traffic.

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Is your intention to disable DHCP and configure a static IP address on an eth interface? Ubuntu Network Configuration Guide –  one.time Sep 6 '13 at 3:59

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As far as an interface getting an IP via DHCP, that's controlled by /etc/network/interfaces - change any dhcp you find in the appropriate stanzas to static.

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This is what I am trying to do. stackoverflow.com/questions/18621261/masquerading-a-webserver I want to setup a connection with my network device and respond to the GET request it is sending with my local webserver Perl script. I thought I should disable all system service before I can inject http traffic into the port. –  Jean Sep 6 '13 at 14:50
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Probably want to disable NetworkManager if it's running, service stop NetworkManager or similar. Then you may want to run lsof -i or netstat to see what else is listening, and stop programs or disable services accordingly if you want absolutely no other traffic on that interface. –  ultrasawblade Sep 6 '13 at 16:31

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