[FS#620] ip-full: monitor command throws error

[LEDE Bugs]

The following task has a new comment added:

FS#620 - ip-full: monitor command throws error
User who did this - yousong (yousong)

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We may need to apply this patch: https://www.spinics.net/lists/netdev/msg396172.html
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=620#comment2174