Re: IPv6 default routes / NM vs. kernel autoconfig

[Stuart D Gathman <stuart gathman org>]

On 07/23/2012 08:12 PM, Pavel Simerda expounded in part:
> NM is working around lack of information from kernel and it works only 
> in basic situations. There are solutions to this.
While it doesn't actually break, I have a related issue with DHCP6. When 
RA enables DHCP6 (and NM set to "Automatic"), I end up with *both* the 
RA and DHCP addresses.   And it keeps accumulating more IPs over time!  
Here is what I have after 6 days uptime (prefix changed), the ::34 is 
the DHCP6 assigned IP.

em1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.9.34  netmask 255.255.255.0  broadcast 192.168.9.255
        inet6 2001:db8:dead:beef:d070:56c1:718b:984a  prefixlen 64 
scopeid 0x0<global>
        inet6 2001:db8:dead:beef:c14a:1e6f:cb6c:3789  prefixlen 64 
scopeid 0x0<global>
        inet6 2001:db8:dead:beef:781b:86da:f62a:3c46  prefixlen 64 
scopeid 0x0<global>
        inet6 2001:db8:dead:beef:20fd:9bd1:bec7:c06f  prefixlen 64 
scopeid 0x0<global>
        inet6 2001:db8:dead:beef::34  prefixlen 64  scopeid 0x0<global>
        inet6 2001:db8:dead:beef:20c:f1ff:fed9:97b4  prefixlen 64 
scopeid 0x0<global>
        inet6 fe80::20c:f1ff:fed9:97b4  prefixlen 64  scopeid 0x20<link>
        inet6 2001:db8:dead:beef:5820:434c:936c:f4c1  prefixlen 64 
scopeid 0x0<global>
        inet6 2001:db8:dead:beef:cd72:db54:d19b:49d7  prefixlen 64 
scopeid 0x0<global>
        ether 00:0c:f1:d9:97:b4  txqueuelen 1000  (Ethernet)
        RX packets 1412101  bytes 1128925860 (1.0 GiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 737197  bytes 72349628 (68.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

It looks like an attempt to use the privacy protocol to assign random 
IPs that change periodically, but it forgets to remove old IPs.