[FS#1541] Invalid Kernel logspam : sit: non-ECT from <various IPs, Invalid IPs>

[LEDE Bugs]

The following task has a new comment added:

FS#1541 - Invalid Kernel logspam : sit: non-ECT from 
User who did this - Arjen de Korte (arjendekorte)

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I changed the contents '/etc/modules.d/32-sit' of from

    sit
to
    sit log_ecn_error=0

This will suppress the errors too after rebooting. It doesn't fix the underlying problem though.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1541#comment4738