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Re: draft-wbeebee-ipv6-cpe-router-04 comments
On Thu, 26 Mar 2009, Mark Smith wrote:
I agree with James. An implementation model of ADSL with Ethernet
backhaul (TR-101) is to have all CPE sitting in the same "bridged
Ethernet over ADSL" VLAN, ethernet switched in the local telephone
exchange / C.O., with the default router off site, also in the same
VLAN. Having the CPE announce their prefixes to each other would keep
inter-CPE traffic off of the expensive backhaul links. If P2P
applications/traffic become much more locality aware, this would be of
great benefit.
This sound like a huge security problem, how are those implications
handled? Wouldn't the L2 device in the CO need to be able to inspect all
these messages and drop ones which are not assigned to that specific
customer by the ISP?
In the scenarios I have seen before mechanisms such as forced forwarding
and/or mac rewrite/DHCP snooping based ACLs been used in the CO L2 device
to handle this, what are the IPv6 equivalents in this scenario?
--
Mikael Abrahamsson email: swmike@swm.pp.se