#18774: "Unstable" native IPv6 connectivity
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Reporter: kweasdz@… | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Barrier Breaker 14.07
Resolution: | Keywords: ipv6
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Comment (by simon.vetter):
Also seeing this on Chaos Chalmer 15.05-rc3.
I believe that it is due to the fact that dhcp6c deletes and re-adds the
default route(s) routes to reset their valid lifetime whenever an RA is
received on the wan interface (or at least, that's what I'm seeing with ip
-6 monitor route. I have also found that this happens whenever the
odhcp6c.script handler is called).
This also affects machines behind the openwrt router which periodically
(in my case, anywhere between 30s to 1 minute) lose connectivity and get
icmp route unreachables - no route for about a second.
odhcp6c should probably update the routes instead of deleting/readding
them, or add routes with infinite lifetimes and only remove them from the
kernel when they are actually expiring (by i.e. implementing route expiry
timers).
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Ticket URL: <https://dev.openwrt.org/ticket/18774#comment:2>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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