Which one is easier, 1. Convincing the tens of thousands of network operators and equipment vendors to modify configs and code to accept more specifics than /24, or 2. Moving to IPv6 a protocol that has been here for 20+ years ??? On Wed, 4 Oct 2023 at 12:41, William Herrin <bill@herrin.us> wrote:
On Tue, Oct 3, 2023 at 11:56 AM Justin Wilson (Lists) <lists@mtin.net> wrote:
I think it is going to have to happen. We have several folks on the IX and various consulting clients who only need 3-6 Ips but have to burn a full /24 to participate in BGP. I wrote a blog post awhile back on this topic
Hi Justin,
The Internet is not one network, it's tens of thousands of them all run by different people who make their own choices. To participate in BGP with a more specific prefix than /24, you must convince nearly all of them to allow it. How are you planning to reach a human being at those networks, much less a human being in a position to make that choice? Let alone talk them into the change...
When it was a handful of networks trying to filter at /19, it was possible to beat that handful over the head. Even then it took years before they gave up on the idea. /24 has been the de facto minimum since forever. It's not a handful of networks, it's nearly everybody.
So, if you'd like to make a wager on /25 and more specifics becoming a real thing on the backbone, I'll be happy to take your money.
Regards, Bill Herrin
-- William Herrin bill@herrin.us https://bill.herrin.us/