Help with IPv6 router gateway config, Comcast, DHCP, dnsmasq

[Tom Pusateri]

> On Nov 1, 2014, at 1:53 AM, Rui Paulo <rpaulo at me.com> wrote:
> 
>> I find the man pages for dhcp6 pretty awful.  The man pages describe the
>> options - but not being able to find what /64 is assigned to dhcp6c other
>> than running in debug mode seems crazy.
> 
> There's an alternative: dhclient from ports which includes DHCPv6 support with prefix delegation.
> 


Chris' config error caused dhcp6c not to configure his downstream interface.

dhclient from ports will only work with the default prefix length assigned by the provider. For all providers I have encountered, this is /64 and a good choice. But if you want multiple /64's for multiple interfaces, you have to request a larger prefix (/56 or /60 depending on the policy of the provider). dhclient in ports will not let you do this.

In Chris' case, he only has a single downstream interface (for now) and so dhclient in ports would work for that.

Tom