On Fri, Mar 11, 2011 at 1:55 PM, James Stahr <stahr@mailbag.com> wrote:
Is anyone else considering only using link local for their PtoP links? I realized while deploying our IPv6 infrastructure that OSPFv3 uses the link-local address in the routing table and than the global address, so if I want to have a routing table which makes sense, I need to statically assign a global address AND the link-local address. Then I realized, why even assign a global in the first place? Traceroutes replies end up using the loopback. BGP will use loopbacks. So is there any obvious harm in this approach that I'm missing?
For now I have allocated /64s per p-t-p, but I'm doing "ipv6 unnumbered loopback0" I quite like how the core route table looks. It also lets me avoid "The Point to Point Wars" :-) Maybe there will be a good reason to go back and slap globals on there, but I've not been convinced yet. -- Tim:>