In a message written on Tue, Dec 25, 2007 at 12:43:45AM -0500, Kevin Loch wrote:
RA is a shotgun. All hosts on a segment get the same gateway. I have no idea what a host on multiple segments with different gateways would do. Hosting environments can get complex thanks to customer
I would like to point out that in IPv4 we have ICMP Router Advertisement messages. I have never seen them used on a production network. I know one of the worries is security, that a compromised host could send out advertisements, drawing traffic to it that it can then snoop and pass on to the real gateway. Having not looked in great detail, I am unclear if IPv6 has done something to fix this concern or not. Is this feature going to get turned off when the first worm comes along that spoofs RA's -- 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