[FS#73] Router doesn't answer to ping to ff02::1

[LEDE Bugs]

The following task has a new comment added:

FS#73 - Router doesn't answer to ping to ff02::1
User who did this - Jo-Philipp Wich (jow-)

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A fix for firewall3 has been added with

  * https://git.lede-project.org/?p=project/firewall3.git;a=commitdiff;h=6009904eb4dfe91e3d0b5cb96c4095232a303835
 * https://git.lede-project.org/?p=project/firewall3.git;a=commitdiff;h=b33f78371e7c7b6a131c2b6c01673cbd4b3c13d1
 * https://git.lede-project.org/?p=project/firewall3.git;a=commitdiff;h=6818f758fe8b0de9eae45adf4bae91a312cc8f0c

An update to the firewall package is staged in my tree - please test.
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=73#comment200