Re: IPv6 broadband provisioning

[Kevin Loch <kloch@kl.net>]

Iljitsch van Beijnum wrote:

> The first device under the control of the ISP, or at least a device very 
> low in the aggregation hierarchy, to intercepts router advertisements 
> from the ISP's IPv6 router and slightly modifies them: it basically 
> injects some bits that are particular to the customer/line, so that 
> every customer sees RAs with a prefix unique to them.

This seems a whole lot more convoluted and hackish than just giving
operators the option of running dhcpv6 and vrrpv6 with RA turned off.

However, There is a way you could do both.  Have the CPE devices act
as routers instead of l2 bridges.  CPE devices request everything
including gateway via dhcpv6.  They also get a customer subnet (/48 /56 
whatever) via dhcpv6 option or via their tftp'd config file.  CPE
then issues RA's on customer subnet(s) for convenience in the home
userspace.

This is an example of different environments where dhcpv6/vrrpv6
with RA turned off makes sense, and where fully featured
RA is best.

I've already mentioned that hosting environments absolutely
cannot run any kind of RA due to the strict controls and
sometimes complex setups where broadcast style configuration
won't work.


- Kevin