* Matthias Wichtlhuber > I don't get the point of the /29 discussion anyways. It is based on > the false assumption that we need to stretch the pool to eternity and > beyond. We need to stretch the pool until we can test and establish > IPv4 over IPv6 peering LANs. A /26 default is perfectly fine for > that.
While I do hope you will be proven to be right about that, I am not so optimistic. The industry's track record on being able to migrate away from IPv4 to IPv6 before the exhaustion of the former is not great, to put it mildly. That even goes for the IXP pool specifically: In 2011, we thought a /16 with a default assignment size of /24 would suffice to «safeguarding future IXPs with IPv4 space». In 2019, we realised that was too optimistic, doubling the pool size to a /15, keeping the default /24. In 2022, we are again realising that we were too optimistic, leaving the pool size unchanged (for obvious reasons), but aiming to reduce the default size to /26. Perhaps third time's the charm. I do hope so, really, but again - not optimistic. George Santayana's observation comes to mind: «those who cannot remember the past are condemned to repeat it». Tore -- To unsubscribe from this mailing list, get a password reminder, or change your subscription options, please visit: https://lists.ripe.net/mailman/listinfo/address-policy-wg
