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Date:      Sat, 13 Feb 2021 20:05:37 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 253469] IPv6 default route vanishes
Message-ID:  <bug-253469-7501-jDbRfdmLu9@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-253469-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-253469-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253469

--- Comment #5 from courtney.hicks1@icloud.com ---
I believe my router will send out RA messages periodically. I have just been
using rtsol to see what changes. I have these in my rc.conf. Let me verify =
some
of these things on my other 12.2 box so I can give better info in terms of =
RA.
I'm using pfSense and to my understanding it's using RA.

ifconfig_re0_ipv6=3D"inet6 accept_rtadv"
ipv6_activate_all_interfaces=3D"YES"

Note the behavior is no different whether I have rtsold enabled and running=
 or
not

I can restart netif and get an IPv6 address without rtsol so I assume my
interface is listening for RAs?

> what is the output of "ndp -r" closer to the route expiration? How does "=
ndp -p" look?

"ndp -p" before the expiration

dead:beef:x:x::/64 if=3Dre0
flags=3DLAO vltime=3D86400, pltime=3D14400, expire=3D23h59m30s, ref=3D1
  advertised by
    fe80::1:1%re0 (reachable)
fe80::%re0/64 if=3Dre0
flags=3DLAO vltime=3Dinfinity, pltime=3Dinfinity, expire=3DNever, ref=3D1
  No advertising router
fe80::%lo0/64 if=3Dlo0
flags=3DLAO vltime=3Dinfinity, pltime=3Dinfinity, expire=3DNever, ref=3D1
  No advertising router

"ndp -p" when I lose my route

dead:beef:x:x::/64 if=3Dre0
flags=3DLAO vltime=3D86400, pltime=3D14400, expire=3D23h58m53s, ref=3D1
  No advertising router
fe80::%re0/64 if=3Dre0
flags=3DLAO vltime=3Dinfinity, pltime=3Dinfinity, expire=3DNever, ref=3D1
  No advertising router
fe80::%lo0/64 if=3Dlo0
flags=3DLAO vltime=3Dinfinity, pltime=3Dinfinity, expire=3DNever, ref=3D1
  No advertising router


"ndp -r" before I lose my route

fe80::1:1%re0 if=3Dre0, flags=3D, pref=3Dhigh, expire=3D32s

and afterwards I get no output

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