[OpenWrt-Devel] Interesting issue with hnetd-nossl

Juliusz Chroboczek jch at pps.univ-paris-diderot.fr
Fri Jun 10 14:56:53 EDT 2016


Dear Markus, dear Steven,

[openwrt-devel in CC]

We've just spent the afternoon debugging an interesting issue.

After installing hnetd-nossl, the router no longer answers to link-local
IPv6 addresses -- it still has the fe80:: addresses assigned, it receives
neighbour solicitations, but doesn't send neighbour announcements.
Rebooting doesn't fix the issue.

The routing table (ip -6 route show) no longer contains entries for fe80::/64,
but I don't know if this is an artifact or a real symptom.

Installing the "ip" package fixes the issue -- perhaps there is a bug in
the busybox ip command that gets triggered by hnetd-nossl, perhaps
something else.

A simple workaround would be to have hnetd-nossl depend on ip, but it
would be good to understand the underlying issue.  But it's late now.

-- Juliusz
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