[Int-area] Re: questions about draft-thain-ipv8-02

[Shizhang Bi <[e-mail]>]

hi Jamie,
  i might be too slow. anyway,
  1. AS numbers are not aggregate-able (am i wrong?);
  2. AS numbers are 32-bit in length and the first / most significant part of ipv8 addresses.
  so an inter-as IPv8 prefix can't be shorter than /32.
  what am i missing?

Bi

You should think of the numbers like this

ASN + ipv4

The ASN left side is not connected to the right, it's a zone number, like a postal code for ip.

There is no subnet mask > /32 of ipv4

So a corp might use 127.0.0.1 for it's 4b addresses in america and 127.0.1.0 for 4 billion more in India.

The left side are area codes.

In general you don't have to have any routes to an IPv8 network. You find it by its ASN number. So for example if the network was 15169 and it's any cast number was 222. 11. 11. 11. And you want to send to the IP address 15169. 7. 5. 4. 3 what happens is if there's no other routes existent in for you and either IPv8 or IPv4 the packets are sent to the anycast address and that's always an IPv8 router.

So you have 4 billion addresses if we allowed/24s to be submitted to the routing table that would be 16 million from each ASN of which there are 120,000 or so right now. So the idea is just one number or maybe five per ASN.

For the DNS records I could have used AA, I certainly don't mean AAAAAAAA

I mean A8 so you don't have to count.

There is no ambiguity.

All the processes that are ipv8 compatible have an eight on the end.

ARP 8, ICMP 8, IP 8, Route 8, ACL 8, DHCP 8, DNS 8, who is 8, BGB 8, ISIS 8, OSPF 8.

Hth

Jamie





On Mon., Apr. 27, 2026, 10:24 p.m. Shizhang Bi, <[e-mail]<mailto:[e-mail]>> wrote:
may someone(s) in this group shed light. thanks.

---

Hi Mr. Thain,
      two questions for you around ipv8 (the v2 draft to be precise), excuse me if they are stupid:
      1. since the ASN occupies the first 32 bits in ipv8 address, why "The minimum injectable prefix at inter-AS boundaries is /16"?
      2. why DNS record for ipv8 (64 bits) is not named as "AA" given ipv4 (32 bits) is "A" and ipv6 "AAAA" (128 bits)? A8 for me (and many people as well i believe) means "AAAAAAAA" ...

thanks for your time.
regards,
bi
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