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dmesg: Unknown messages

I checked out dmesg output and found following entries:

ip: [ID 903730 kern.warning] WARNING: IP: Hardware address '00:06:5b:ed:55:9f' trying to be our address 192.168.051.125!

e1000g: [ID 801593 kern.notice] NOTICE: pci8086,1008 - e1000g[0] : Adapter just lost copper link.

e1000g: [ID 801593 kern.notice] NOTICE: pci8086,1008 - e1000g[0] : e1000g: Adapter 100Mbps FullDuplex copper link is up

e1000g: [ID 801593 kern.notice] NOTICE: pci8086,1008 - e1000g[0] : Adapter just lost copper link.

Well the mac address 00:06:5b:ed:55:9f is the address of the communication adapter e1000g1. So why do I get an error message for my own ip address and for the adapter configured to use this address. I found several of these messages

The other question is, what does the message "Adapter 100Mbps FullDuplex copper link is up" mean. e1000g is the sniffing interface of the sensor.

Regards

Peter

1 REPLY
Cisco Employee

Re: dmesg: Unknown messages

The WARNING: "WARNING: IP: Hardware address '00:06:5b:ed:55:9f' trying to be our address 192.168.051.125! " is a known bug. It is listed in the Caveats section of the 3.1(3) Service Pack Readme file.

It is a bug in the e100g driver from Intel, that is incorrectly firing this warning.

The warning can be safely ignored.

As for the other messages, one message is saying the link is up (the sensor and the device it is connected to have successfully negotiated a 100Mbps Full Duplex link between them), and then other is saying the link is down.

The link up message is normal when the sensor first comes up.

The link down, followed by the link up, is also normal if the sensor is ever disconnected and reconnected to the swtich (or hub), or if the switch reconfigures that port.

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