[Bug 253469] IPv6 default route vanishes

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253469

--- Comment #5 from courtney.hicks1 at 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="inet6 accept_rtadv"
ipv6_activate_all_interfaces="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=re0
flags=LAO vltime=86400, pltime=14400, expire=23h59m30s, ref=1
  advertised by
    fe80::1:1%re0 (reachable)
fe80::%re0/64 if=re0
flags=LAO vltime=infinity, pltime=infinity, expire=Never, ref=1
  No advertising router
fe80::%lo0/64 if=lo0
flags=LAO vltime=infinity, pltime=infinity, expire=Never, ref=1
  No advertising router

"ndp -p" when I lose my route

dead:beef:x:x::/64 if=re0
flags=LAO vltime=86400, pltime=14400, expire=23h58m53s, ref=1
  No advertising router
fe80::%re0/64 if=re0
flags=LAO vltime=infinity, pltime=infinity, expire=Never, ref=1
  No advertising router
fe80::%lo0/64 if=lo0
flags=LAO vltime=infinity, pltime=infinity, expire=Never, ref=1
  No advertising router


"ndp -r" before I lose my route

fe80::1:1%re0 if=re0, flags=, pref=high, expire=32s

and afterwards I get no output

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