DHCPv6 PD chains vs bridging

Durand, Alain Alain_Durand at cable.comcast.com
Tue May 5 15:44:59 CDT 2009



On 5/5/09 4:38 PM, "David W. Hankins" <David_Hankins at isc.org> wrote:

> On Tue, May 05, 2009 at 04:22:04PM -0400, Paul Timmins wrote:
>> Sorry for the top post, but as a crazy thought here, why not throw out an
>> RA, and if answered, go into transparent bridge mode? Let the sophisticated
>> users who want routed behavior override it manually.
> 
> Customer premise gear has a 'front side' and a 'back side', and it is
> already well ingrained behaviour for 'back-to-back port chaining' to
> create a single large bridged network in the home.  What is the
> customer's anticipated result from front-to-back chaining?

What you really want to avoid is to have customer A's home network
accidentally bridged to customer B's. L3 isolation of L2 domains helps.

  - Alain.






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