IPv6 equivalent to DHCP Option 82 for geolocating customer MACs to certain ports of Multi-port Layer 2 demarcation devices
francois at menards.ca
Fri May 6 23:18:55 CEST 2011
any known implementation of RFC 4649 ?
On 2011-05-06, at 5:11 PM, 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.
> If you don't want to use stateful DHCPv6, you don't actually get to
> assign addresses, so you just have to observe what the clients do. You
> can do this with ARP table scraping on the router and MAC table
> scraping on the access switches.
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