On Fri, Feb 15, 2013 at 07:58:10AM +1100, Karl Auer wrote: > On Thu, 2013-02-14 at 08:08 -0500, Jared Mauch wrote: > > I recommend keeping your network as congruent between IPv4 and IPv6 as > > possible, with dual-stack. > > Why?
I asked a similar question a few years ago: http://seclists.org/nanog/2007/Aug/653 Most of the answers came back along the lines of "keep your routing boundaries congruent." Doing so makes documentation and troubleshooting simpler -- having non-congruent boundaries is more complex and error prone. However, if a network you're running calls for non-congruency -- go for it! Just be cognizant of the trade offs.