On Jul 13, 2012, at 8:05 AM, TJ wrote: > On Fri, Jul 13, 2012 at 10:38 AM, -Hammer- <bhmc...@gmail.com> wrote: > >> OK. I'm pretty sure I'm gonna get some flak for this but I'll share this >> question and it's background anyway. Please be gentle. >> >> In the past, with IPv4, we have used reserved or "non-routable" space >> Internally in production for segments that won't be seen anywhere else. >> Examples? A sync VLAN for some FWs to share state. An IBGP link between >> routers that will never be seen or advertised. In those cases, we have >> often used 192.0.2.0/24. It's reserved and never used and even if it did >> get used one day we aren't "routing" it internally. It's just on segments >> where we need some L3 that will never be seen. >> >> On to IPv6 >> >> I was considering taking the same approach. Maybe using 0100::/8 or >> 1000::/4 or A000::/3 as a space for this. >> > > > Would using "just" Link Locals not be sufficient?
If they're on the same link, of course. My understanding of the question said "they're not on the same link". > *(Failing that, as others noted, ULAs are the next "right" answer ... )* > * > * > /TJ
