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Date:      Sun, 01 Apr 2018 17:58:22 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-net@FreeBSD.org
Subject:   [Bug 195197] [netinet6] ipv6 prefix not renewed when managed by userspace daemon with pltime and vltime
Message-ID:  <bug-195197-2472-mlYIl7KilW@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-195197-2472@https.bugs.freebsd.org/bugzilla/>
References:  <bug-195197-2472@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D195197

--- Comment #7 from guyyur@gmail.com ---
It fixes the example but there is another scenario that still panics.

# set static ula so can access host even if router is down
ifconfig vtnet0 inet6 fdXX:: eui64

# enable accept_rtadv to learn global address via ra
# rtadvd set to publish fdXX:: so learns ula prefix via ra too
ifconfig vtnet0 inet6 accept_rtadv

# request ra to learn the prefixes from the router
rtsol vtnet0

# flush
ndp -P

In this scenario, when learning fdXX:: prefix via ra it will set ndpr_advrt=
rs
but the prefix is associated with an address without IN6_IFF_AUTOCONF so the
address won't be purged.

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