I have a pihole container on my router, but the VETH it works off is causing me problems. I had it configured, as per the Mikrotik video tutorial on pihole containers, on VETH1. I shut down the router, but when it rebooted the VETH1 interface was no longer there, which caused the container to not run.
On trying to create a VETH interface manually it gave error 6 - “Couldn’t add new interface - veth setup failed”. This, of course, completely kills the container.
Now I can’t create ANY veth interface - it just fails with the same error. This was all working very well until the shutdown, and I’m pretty sure I rebooted the router and it came back up (but can’t recall the specifics).
This seems to be a common problem. I updated to the latest release (7.12) today and reset the interfaces. It’s working, but I’m now afraid to reboot it
Does anyone know if this update fixed the problem?
There have be various problem in VETH since they added IPv6 support, CIDR/multiple IP. I think the upgrade/winbox/etc didn’t always handle all cases to deal with newer CIDR addressing between versions (and/or winbox may allow saving bad config).
Agree, it has been “fragile” in past releases. Generally speaking removing and recreating VETH should fix problems if upgrade has broken something.
I would recommend v7.12 since I doubt there adding more features to VETH, so hopefully that will be stable for you. But the only way to find out is reboot.
