[CentOS] OT Strange IP address on home network

Thu Oct 29 11:25:16 UTC 2015
Timothy Murphy <gayleard at eircom.net>

John R Pierce wrote:

>> So I guess the strange IP address probably comes from some Lite-On device
>> somewhere in my house - maybe on the server itself, an HP MicroServer.

> My HP Microserver N40L (the original version), the NIC is Broadcom,
> 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5723
> Gigabit Ethernet PCIe (rev 10)
> and its MAC is A0:B3:CC:xx:xx:xx

I have the same Broadcom controller in my MicroServer,
but there is a second Intel 82574L ethernet controller in the machine,
which could conceivably be the culprit.

What I don't really understand is why the dhcpd server
on my CentOS machine does not give this device a proper address.
(There are lots of spare 192.168.2.* slots.)

As far as I can see from iptraf-ng,
no packets are currently coming or going from this 169.254.* address,
which I see from google is a "link-local" address.

Timothy Murphy  
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin