[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 - Peter Backes (rtc)

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Of course such packets are routed! Why shouldn't they? Routing decisions are taken based on target IP, not based on Ports. Before raising doubts, how about simply trying yourself by experiment?

Even if such packets were filtered by the ISPs (which they aren't), one should never rely on this. Tomorrow they might not be filtered.

Exposing the port is not necessary, so should not be done. I do not understand why there is a discussion about it?
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=1132#comment3725