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The Linux kernel detects incoming packets with a local source address, considers them a routing mistake (packets that a particular computer sends out should never come back), and drops them to prevent network flooding. Try to put each macvlan into a different network namespace (after all, macvlans were designed to be used from network namespaces). Then it ...


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First, I'd like to point out that Lubuntu 19.10 is EOL, meaning no longer supported. You should upgrade to 20.04, the current LTS, or downgrade to 18.04 which is also a LTS release. But, the problem here is that someone has changed the permissions for /usr/bin. To fix this, you need to take ownership (and change the permissions) of the directory and files. ...


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udev is usually the way to go for hotplug events.


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