In a message written on Wed, Dec 26, 2007 at 09:19:54PM +0100, Iljitsch van Beijnum wrote:
Many switches can enforce a MAC/port relationship, so that MAC addresses can't be spoofed.
Which gets to the crux of my question. If you're a shop that uses such features today (MAC/Port tracking, DHCP snooping, etc) to "secure" your IPv4 infrastructure does IPv6 RA's represent a step backwards from a security perspective? Would IPv6 deployment be hindered until there is DHCPv6 snooping and DHCPv6 is able to provide a default gateway, a-la how it is done today in IPv4? It would be very interesting to me if the answer was "it's moot because we're going to move to CGA's as a step forward"; it would be equally interesting if the answer is "CGA isn't ready for prime time / we can't deploy it for xyz reason, so IPv6 is less secure than IPv4 today and that's a problem." -- Leo Bicknell - bicknell@ufp.org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/ Read TMBG List - tmbg-list-request@tmbg.org, www.tmbg.org