Joshua, Assuming the logging is correct, it looks like the hint may not be correct. It should be just an integer. It shouldn't have any other data (such as :: or /) in the field:
https://www.rfc-editor.org/rfc/rfc8415#section-18.2.1 The client MAY include values in IA Prefix options (see Section 21.22) encapsulated within IA_PD options as hints for the delegated prefix and/or prefix length for which the client has a preference. See Section 18.2.4 for more on prefix-length hints. https://www.rfc-editor.org/rfc/rfc8415#section-21.22 prefix-length Length for this prefix in bits. A 1-octet unsigned integer. You could probably confirm the content of the field with a packet capture. Thank you, Darren Ankney On Tue, May 23, 2023 at 5:09 PM Joshua Pool <j...@mikrologic.com> wrote: > > Thanks for the response. I am using a Mikrotik router and I can get the > desired PD from Charter Spectrum just fine but when I try to do the same with > Kea it always assigns me the delegated-len value of /56 regardless of what > hint I include. > > In this example my Mikrotik is set with prefix hin ::/64 > In Kea the DEBUG DHCP6 PACKET RECEIVED it shows the prefix=::/64 > DEBUG DHCP6_PROCESS_IA_PD_REQUEST duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0x26e767: server is processing IA_PD option with iaid=1 and hint=:: > DHCP6_PD_LEASE_ADVERT duid=[00:03:00:01:0e:21:15:70:0c:f0], tid=0xa0e83f: > lease for prefix fd00:c40:20:600::/56 and iaid=1 will be advertised > > Full Log: > 20:47:11 DEBUG DHCP6_PACKET_RECEIVED duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: SOLICIT (type 1) received from fe80::c21:15ff:fe70:cf0 to > ff02::1:2 on interface eth1 > <len=00012: iaid=1, t1=1800, t2=2880#012type=00008, len=00002: 0 > (uint16)#012type=00025(IA_PD), len=00041: iaid=1, t1=1800, > t2=2880,#012options:#012 type=00026(IAPREFIX), len=00025: prefix=::/64, > preferred-lft=2880, valid-lft=3600#012No relays traversed.#012 > 20:47:11 DEBUG HOOKS_CALLOUTS_BEGIN begin all callouts for hook pkt6_receive > 20:47:11 DEBUG HOOKS_CALLOUT_CALLED hooks library with index 1 has called a > callout on hook pkt6_receive that has address 0x7fb78df0b710 (callout > duration: 0.036 ms) > 20:47:11 DEBUG HOOKS_CALLOUTS_COMPLETE completed callouts for hook > pkt6_receive (total callouts duration: 0.036 ms) > 20:47:11 DEBUG DHCPSRV_CFGMGR_SUBNET6_IFACE selected subnet fd00:c40:10::/64 > for packet received over interface eth1 > 20:47:11 DEBUG DHCP6_SUBNET_SELECTED duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: the subnet with ID 1 was selected for client assignments > 20:47:11 DEBUG DHCP6_SUBNET_DATA duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: the selected subnet details: fd00:c40:10::/64 > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER get one host with IPv6 > reservation for subnet id 1, identified by duid=000300010E2115700CF0 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_IDENTIFIER get all hosts with reservations > using identifier: duid=000300010E2115700CF0 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_IDENTIFIER_COUNT using identifier > duid=000300010E2115700CF0, found 0 host(s) > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER_NULL host not found > using subnet id 1 and identifier duid=000300010E2115700CF0 > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER get one host with IPv6 > reservation for subnet id 1, identified by hwaddr=0E2115700CF0 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_IDENTIFIER get all hosts with reservations > using identifier: hwaddr=0E2115700CF0 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_IDENTIFIER_COUNT using identifier > hwaddr=0E2115700CF0, found 0 host(s) > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_IDENTIFIER_NULL host not found > using subnet id 1 and identifier hwaddr=0E2115700CF0 > 20:47:11 DEBUG DHCP6_CLASS_ASSIGNED duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: client packet has been assigned to the following class(es): > UNKNOWN > 20:47:11 DEBUG DHCP6_PROCESS_IA_NA_REQUEST > duid=[00:03:00:01:0e:21:15:70:0c:f0], tid=0xa0e83f: server is processing > IA_NA option with iaid=1 and hint=(no hint) > 20:47:11 DEBUG DHCPSRV_MEMFILE_GET_IAID_DUID obtaining IPv6 leases for IAID 1 > and DUID 00:03:00:01:0e:21:15:70:0c:f0 and lease type IA_NA > 20:47:11 DEBUG ALLOC_ENGINE_V6_ALLOC_UNRESERVED no static reservations > available - trying to dynamically allocate leases for client > duid=[00:03:00:01:0e:21:15:70:0c:f0], tid=0xa0e83f > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS6 get one host with > reservation for subnet id 1 and having IPv6 address fd00:c40:10::206 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_SUBNET_ID_ADDRESS6 get all hosts with > reservations for subnet id 1 and IPv6 address fd00:c40:10::206 > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_SUBNET_ID_ADDRESS6_COUNT using subnet id 1 > and address fd00:c40:10::206, found 0 host(s) > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS6_NULL host not found using > subnet id 1 and address fd00:c40:10::206 > 20:47:11 DEBUG DHCPSRV_MEMFILE_GET_ADDR6 obtaining IPv6 lease for address > fd00:c40:10::206 and lease type IA_NA > 20:47:11 INFO DHCP6_LEASE_ADVERT duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: lease for address fd00:c40:10::206 and iaid=1 will be advertised > 20:47:11 DEBUG DHCP6_LEASE_DATA duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: detailed lease information for iaid=1: Type: > IA_NA(0)#012Address: fd00:c40:10::206#012Prefix length: 128#012IAID: > 1#012Pref life: 453600#012Valid life: 604800#012Cltt: > > 20:47:11 DEBUG DHCP6_PROCESS_IA_PD_REQUEST > duid=[00:03:00:01:0e:21:15:70:0c:f0], tid=0xa0e83f: server is processing > IA_PD option with iaid=1 and hint=:: > 20:47:11 DEBUG DHCPSRV_MEMFILE_GET_IAID_DUID obtaining IPv6 leases for IAID 1 > and DUID 00:03:00:01:0e:21:15:70:0c:f0 and lease type IA_PD > 20:47:11 DEBUG ALLOC_ENGINE_V6_ALLOC_UNRESERVED no static reservations > available - trying to dynamically allocate leases for client > duid=[00:03:00:01:0e:21:15:70:0c:f0], tid=0xa0e83f > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS6 get one host with > reservation for subnet id 1 and having IPv6 address fd00:c40:20:600:: > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_SUBNET_ID_ADDRESS6 get all hosts with > reservations for subnet id 1 and IPv6 address fd00:c40:20:600:: > 20:47:11 DEBUG HOSTS_CFG_GET_ALL_SUBNET_ID_ADDRESS6_COUNT using subnet id 1 > and address fd00:c40:20:600::, found 0 host(s) > 20:47:11 DEBUG HOSTS_CFG_GET_ONE_SUBNET_ID_ADDRESS6_NULL host not found using > subnet id 1 and address fd00:c40:20:600:: > 20:47:11 DEBUG DHCPSRV_MEMFILE_GET_ADDR6 obtaining IPv6 lease for address > fd00:c40:20:600:: and lease type IA_PD > 20:47:11 INFO DHCP6_PD_LEASE_ADVERT duid=[00:03:00:01:0e:21:15:70:0c:f0], > tid=0xa0e83f: lease for prefix fd00:c40:20:600::/56 and iaid=1 will be > advertised > > Any Thoughts? > > > > > > > On Tue, May 23, 2023 at 2:46 AM Darren Ankney <darren.ank...@gmail.com> wrote: >> >> Hello Joshua, >> >> It would appear it just happens. No need to configure anything. There >> is a debug message about the hint being processed: >> >> https://kea.readthedocs.io/en/kea-2.2.0/kea-messages.html >> >> DHCP6_PROCESS_IA_PD_REQUEST >> >> %1: server is processing IA_PD option with iaid=%2 and hint=%3 >> >> This is a debug message that indicates a processing of received IA_PD >> option. The first argument contains the client and the transaction >> identification information. The second argument holds the IAID of the >> IA_PD option. The third argument may hold the hint for the server >> about the prefix that the client would like to have allocated. If >> there is no hint, the argument should provide the text indicating that >> the hint hasn't been sent. >> >> Thank you, >> >> Darren Ankney >> >> On Mon, May 22, 2023 at 8:39 PM Joshua Pool via Kea-users >> <kea-users@lists.isc.org> wrote: >> > >> > With KEA 2.2 is there a way to assign a PD based on received PD hints? >> > >> > >> > -- >> > 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 >> > Kea-users@lists.isc.org >> > 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. 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