IPv6 equivalent to DHCP Option 82 for geolocating customer MACs to certain ports of Multi-port Layer 2 demarcation devices

[Phil Pennock]

On 2011-05-06 at 17:11 -0400, Ben Jencks wrote:
> On Fri, May 6, 2011 at 16:47, Francois Menard <francois at menards.ca> wrote:
> > What's the most promising IPv6 equivalent to DHCP Option 82 for geolocating customer MACs to certain ports of Multi-port Layer 2 demarcation devices ?
> 
> Well, technically DHCP option 82 locates the DHCP request packet to
> the switchport. The equivalent DHCPv6 option seems to be Remote-ID,
> option 37 defined in RFC 4649. You'd still need some equivalent of
> DHCP snooping, though.

RAIO/Option-82 has a number of sub-options, for labelling the packets in
various ways.  The core RAIO functionality is a native part of the core
DHCPv6 spec (and rather better handled, with fewer political compromises
resulting in better engineering and less ambiguity than found in RAIO
for DHCPv4).

The core DHCPv6 spec, RFC 3315, defines an Interface-ID Option which is
analogous to DHCPv4 RAIO Sub-option 1, the Circuit-ID -- they fulfil
the same role.

RAIO Sub-option 2, "Agent Remote ID Sub-option" aligns to RFC 4649's
DHCPv6 Relay Agent Remote-ID Option.

RAIO Sub-option 6, "Subscriber-ID" from RFC 3993 aligns to RFC 4580's
DHCPv6 Relay Agent Subscriber-ID Option.

-Phil