[FS#1132] Default config exposes ipv4 UDP port 68 to the entire Internet

[LEDE Bugs]

The following task has a new comment added:

FS#1132 - Default config exposes ipv4 UDP port 68 to the entire Internet
User who did this - Arjen de Korte (arjendekorte)

----------
It is very common for ISPs to block ports. See [[https://www.bitag.org/documents/Port-Blocking.pdf]] for the reason why they do that (paragraph 3.1.5).
----------

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1132#comment3726