Sunday 29 July 2018

Permanently set interface in promiscuous mode

The quickest and probably the easiest way to set an interface to promiscuous mode in Linux is to run the following command and add the same to the /etc/rc.local file to survive a reboot.
ifconfig eth0 up promisc
Another option to make it permanent is to edit and update the network configuration file namely /etc/network/interfaces
Remove the lines related to eth0 and update the file to look something like
auto eth0
iface eth0 inet manual
up ifconfig eth0 up promisc
down ifconfig eth0 down -promisc

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