Getting functional ipv6 on Century Link

[Sean Bruno]

On 05/26/18 09:50, Alan Somers wrote:
> 
> On Sat, May 26, 2018 at 9:01 AM, Sean Bruno <sbruno at freebsd.org
> <mailto:sbruno at freebsd.org>> wrote:
> 
>     http://www.centurylink.com/home/help/internet/modems-and-routers/zyxel-c1100z/ipv6-turn-on.html
>     <http://www.centurylink.com/home/help/internet/modems-and-routers/zyxel-c1100z/ipv6-turn-on.html>
> 
>     US DSL carrier that seems to provide v6 via a 6rd configuration.  This
>     all seems to be working and my modem reports it has stuff and things.
> 
>     What am I supposed to use as settings in rc.conf to enable client side
>     ipv6?  Nothing I seem to do with router advertisement or whatever seems
>     to be be correct.
> 
>     sean
> 
> 
> I'm using IPv6 on CenturyLink .  My OpenWRT router's configuration looks
> like this:
> /etc/config/network:
> ...
> config interface 'lan'
>         option ifname 'eth0.1'
>         option type 'bridge'
>         option proto 'static'
>         option netmask '255.255.255.0'
>         option ipaddr '192.168.0.1'
>         option ip6assign '64'
> 
> config interface 'wan'
>         option ifname 'eth0.2'
>         option _orig_ifname 'eth0.2'
>         option _orig_bridge 'false'
>         option proto 'pppoe'
>         option username '*****'
>         option password '*****'
>         option ipv6 '1'
> 
> config interface 'wan6'
>         option _orig_ifname 'eth0.2'
>         option _orig_bridge 'false'
>         option proto '6rd'
>         option peeraddr '205.171.2.64'
>         option ip6prefix '2602::'
>         option ip6prefixlen '24'
> ...
> /etc/config/dhcp:
> ...
> 
> config dhcp 'lan'                               
>         option interface 'lan'                      
>         option limit '150'           
>         option leasetime '12h'                  
>         option start '101'                          
>         option dhcpv6 'server'       
>         option ra 'server'                      
>         option ra_management '1'
> ...
> 
> Behind the firewall, On my FreeBSD machines I simply have this in
> /etc/rc.conf:
> ifconfig_em0_ipv6="inet6 accept_rtadv"
> 
> Hope it helps.
> -Alan


It looks like what I "needed" was some of this and rtsold.

ipv6_activate_all_interfaces="YES"
ip6addrctl_policy="ipv4_prefer"        # A pre-defined address selection
policy
ipv6_default_interface="em0"
ifconfig_em0_inet6="inet6 accept_rtadv"
rtsold_enable="YES"
rtsold_flags="-dDF ${ipv6_default_interface}"


For now, this seems to work.

The default rtsold_flags of "-a" did not work.  I left ipv4 as the
default for now while I'm troubleshooting.

sean

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