[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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So it's a paternalistic measure to protect customers from their own stupidity (such as running LEDE in its default configuration with port 68 open to everyone), and has nothing to do with protecting the ISP's internal network. The ISP can protect its own internal network any way it wishes. Blocking customer's traffic in transit to the internet or to other customers is not necessary for that.

My ISP is one of the largest in Germany and does not block inbound ipv4 UDP traffic to port 68.
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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#comment3740