169.254.*.* How to find them.

[tashirosgt]

My understanding is that Windows ( and perhaps some Linux) machines which expected to be assigned an IP address on a network and don't get one, will assign themselves one. It begins with 169.254.... Is there an efficient way to track down where these machines are? (I mean by using some softeware to find the switches and ports to which they are connected, not by walking around the factory to each machine.)

[AndyGreen]

AIUI unmanaged switches are completely transparent.

You should be able to use

arp | grep 169.254

to get a list of MAC addresses of these guys that are on the local subnet of the Linux machine you are running it on.