Yeah, exactly the same situation, we also got /29 allocation. :) We use Mikrotik routers too much, so I don't have ability to install /56 PD routes learned from DHCP relay locally. I wrote Kea hook script for ExaBGP API, which propagates /56 routes from Kea to iBGP. That way I'm able to filter prefixes belonging to particular router only and save routing table space.
št 9. 6. 2022 o 11:57 Torbjörn Eklöv <[email protected]> napísal(a): > > 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 > > -- 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
