[FS#170] Adding routes with a proto field doesn't work

[LEDE Bugs]

The following task has a new comment added:

FS#170 - Adding routes with a proto field doesn't work
User who did this - Juliusz Chroboczek (jch)

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> hnetd uses some similar tricks more directly, using proto 43

Hnet'd doesn't, it's shncpd that does.

> and one where it should probably be used (dhcp)

Please don't do that, dhcp must not install routes with a non-boot proto by default.  (Dhcp routes must not be redistributed into a routing protocol without explicit operator intervention, or the universe will collapse.)
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=170#comment801