I just remembered that I have written this and is almost exact what you wrote.
https://labs.ripe.net/author/teklov/ipv6-address-planning-in-gavlenet/ Torbjörn Eklöv | Interlan Gefle AB Marielundsvägen 2, 803 22 GÄVLE Växel: 026-18 50 00 | Direkt: 070-683 51 75 http://www.dnssecandipv6.se "A home without IPv6 is just a house" On 8 Jun 2022, at 17:13, Blažej Krajňák <[email protected]> wrote: Until now I planned per site: - /56 for last-mile links (/64) to customers CPEs - /40 for PD It looks I have to break it to /48 per VLAN and site for PD. I really don't see any other option. Just to explain clearly: for me, a VLAN is one sector antenna or one PON port (1:128 splitting). So 256x /56 subnets is enough. There is still an option to announce only sumarized /40 to IGP, that's not problem. st 8. 6. 2022 o 16:45 Torbjörn Eklöv via Kea-users <[email protected]> napísal(a): You can use multiple subnets in any way you wan’t with DHCPv6 PD. If it’s correct way to do it it’s up to you but I shouldn’t use my example below kea-dhcp6.conf . . "subnet6": [ { "subnet": "2001:db8:0001::/48", "pd-pools": [ { "prefix": "2001:db8:8000::", "prefix-len": 36,"delegated-len": 56 } ] } . , If the DHCPv6 relay adress is included in the 2001:db8:0001::/48 subnet the kea-dhcp6 will happily assign one /56 from the 2001:db8:8000::/36 subnet. ( Over one miljon /56 ) Then you will have a massive numbers of internal /56 routes. I should instead do ~like this "subnet6": [ { "subnet": "2001:db8:0002::/120", "pd-pools": [ { "prefix": "2001:db8:8000::", "prefix-len": 40,"delegated-len": 56 } ] } And only announce the /40 from “one site router” to the IGP. Torbjörn Eklöv | Interlan Gefle AB Marielundsvägen 2, 803 22 GÄVLE Växel: 026-18 50 00 | Direkt: 070-683 51 75 http://www.dnssecandipv6.se "A home without IPv6 is just a house" On 8 Jun 2022, at 15:06, perl-list <[email protected]> wrote: as far as I understand, that isn't possible. It probably should be given the way prefix delegation works, but that wasn't how they chose to design it (at least the way I understand it). Each prefix must be part of a particular subnet which can all be grouped together under a single shared network but that also shares the subnets between the sites. ----- Original Message ----- From: "Blažej Krajňák" <[email protected]> To: "kea-users" <[email protected]> Sent: Wednesday, June 8, 2022 8:43:26 AM Subject: [Kea-users] One PD pool for multiple subnets Hello, in our ISP network setup we need to use one PD pool for multiple subnets (this PD pool belongs to one site router which handles mulitple VLANs - subnets). Is it possible / what's the correct way to do that? Thanks, Blažej -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users
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