Consistent Need to Reboot Due to Disconnect

[keithwalker80]

Good evening:

I have recently upgraded to Version: TrueNAS-12.0-U4 and started having an issue where my machine needs to be rebooted multiple times either per day or during a 7 day period. The error that I get is indicating that I have a MAC address that is trying to use the IP that the machine uses which already has another MAC address. The message is below:

truenas kernel {2008}: Last message 'arp: 72:54:3c:29:df' repeated 1 times, suppressed by syslog-ng on truenas.skywalkerscloud.com

truenaskernel: arp: 72:54:3c:29:df is using my IP address 10.X.X.33 on hn0!


I cannot figure out how to fix this apparent arp/ethernet collision. Can anyone help please?

 

[davidtrad]

Good evening:

I have recently upgraded to Version: TrueNAS-12.0-U4 and started having an issue where my machine needs to be rebooted multiple times either per day or during a 7 day period. The error that I get is indicating that I have a MAC address that is trying to use the IP that the machine uses which already has another MAC address. The message is below:

truenas kernel {2008}: Last message 'arp: 72:54:3c:29:df' repeated 1 times, suppressed by syslog-ng on truenas.skywalkerscloud.com

truenaskernel: arp: 72:54:3c:29:df is using my IP address 10.X.X.33 on hn0!


I cannot figure out how to fix this apparent arp/ethernet collision. Can anyone help please?

Hi Keith,

Are you running in a VM or standalone machine?

If VM just check and make sure that the cloned MAC is not the same as another VM as that can happen easily.

If not a VM disconnect your NAS and then do an network scan (I suggest using Angry IP) and see if there is another machine on the network using the same MAC?

Just a couple of thoughts, well it is where I would start looking anyway and you probably have done that

Cheers,

David.

 

[Patrick M. Hausen]

Find the other device and change its IP address. Do you run jails or VMs? The MAC address seems not to be a valid vendor OUI.

 

[keithwalker80]

David, to answer your question, it is running in a VM and on its own NIC set up specifically for this purpose.

Patrick, to answer your question, I am not running any jails or VM's within TrueNAS. I was running a jail but have since gotten rid of it. Do you think if I changed the NIC's IP that it would solve my issue? I figured the issue would just follow.

 

[Patrick M. Hausen]

No - the issue won't follow. You have two different devices using the same IP address. You need to change one of them to a free one.

 

[keithwalker80]

Ok. I will try and follow up. Thanks again to all.