Re: Is DHCP installed by default in ver. 12.04 LTS?
Is Precise Pangolin using DHCP with any device automatically (as in Auto Eth)? How can I know if the device is or isn't found?
Run a terminal command:Is there an eth0 found? If so, you have a wired ethernet interface and, if the ethernet cable is attached to a router, you should get an IP address automagically. DHCP is installed and runs by default.
I have set the Network Manager to add a wired connection with IP=169.254.5.12 and mask of 255.255.0.0. Nothing gets found.
Where did you get that? 169.254.x.y is usually reserved for a placeholder indicating, roughly, 'I am a working interface but I can't connect because the router refused my connection, the cable is detached, the cable is defective, etc.'
Typically, you will need NO human intervention; Network Manager does everything for you.
Is it possible to use the wifi for internet connectivity and the ethernet for another use simultaneously?
Yes, although probably not with Network Manager. It defaults to wired if it's available and then turns off wireless. What you propose can be done with some manual configuration.
"Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.
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