TrueNas Community edition 25.04.2.4
I had created a LACP bond of (2) 10Gb sfp+ on an intel 710 nic.
I want to delete the bond and only use 1 10Gb connection. Of course when I test network changes, I lose connection and can’t get back into truenas in time.
I then plugged in an cable to one of the Gbe ports on the server and set the interface to dhcp, getting me a 2nd IP address to my server. When I test the network changes to delete the bond, I also lost connectivity to the 2nd Ip address.
Next test was to create another vlan, plug the Gbe into that port and I set the IP address to the new network. I can ping it, browse to it, and login. Upon attempting to delete the bond again and testing changes, my persistent ping on the second network drops as well.
What am I doing wrong?
Thanks!
Just thinking out loud:
Change the timeout when applying the change in TrueNAS network settings to a higher value (300s or more). Then when the connection goes down, you have some time to go into the switch settings and undo the LACP bond there. By the time the TN timeout is reached, the switch ports will hopefully already be unbonded.
I’ll try that, but I’m confused why when deleting the bond on a 192 network causes my 172 network to completely stop responding to pings.
Is the management station that you are using to access TrueNAS directly connected on the same 172 network?
No, but there are no firewall rules blocking any traffic between the 2 networks. My persistent ping works great until I test the network changes after deleting the bond.
I’m guessing the default gateway in TrueNAS is on the 192 net.
When you test the changes and the bond goes down, it’s taking the gateway with it. There’s no return path back to you so you’re losing the echo replies.
You can temporarily change the default gateway, but it would be easier to just connect your machine to the 172 net temporarily and not mess with firewall rules.
(I made a similar mistake recently 
)
Yup, that would explain everything. I’ve been on vacation for 2 weeks with my 4 kids… My networking skills have suffered. Thank you!
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