> > prefixes on the same link. Choosing to make use of a 120-bit prefix > > (for example) will do nothing to protect against a rogue RA announcing > > its own 64-bit prefix with the A flag set. > > > > I could not find any "A flag" in the RA. Am i missing something?
It's part of the Prefix Information option. See http://tools.ietf.org/html/rfc4861#section-4.6.2 Steinar Haug, Nethelp consulting, sth...@nethelp.no