My cable provider (Comcast) recently enabled native IPV6, and I've enabled it on
my router (using a recent trunk version).  While generally the IPV6 connectivity
is working, I am seeing something strange.
Roughly every 3 seconds, the "dhcpv6.script is being triggered to run (by 
odhcp6c). 
My directly attached linux box (running Fedora 19) eventually fills it's logs 
with
messages from avahi-daemon with the following msg (at roughly 3 second intervals
as well):

    Sep 29 17:04:38 <hostname> avahi-daemon[506]: Registering new address 
record for <IPV6-address> on enp0s4.*.
    Sep 29 17:04:38 <hostname> avahi-daemon[506]: Withdrawing address record 
for <IPV6-address> on enp0s4.

The IPV6 address in the Fedora logs is always the same.

If I catch the "dhcpv6.script" running on the router using "ps", the command it
is running is always:

    {dhcpv6.script} /bin/sh /lib/netifd/dhcpv6.script eth0.2 ra-updated

Is this normal/expected?  If not, what data would I collect to determine if 
it's a
configuration error, an ISP issue, or something that needs to be addressed in
odhcp6c/netifd?

Thanks

-- 
Nathan
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