[  191.337815] netdevsim netdevsim1337: Failed to register fib notifier
[  197.486780] netdevsim netdevsim1337: Failed to register fib notifier
[  201.292772] netdevsim netdevsim1337: Failed to register fib notifier
[  207.499811] netdevsim netdevsim1337: Failed to register fib notifier