[Kea-users] Prefix delegation
Mauro Gasparini
mjgaspa at cablenet.com.ar
Tue Feb 3 17:30:42 UTC 2015
Thanks Marcin.
It works with:
"subnet6": [
{ "subnet": "2800:820:1::/52",
"pools": [ { "pool": "2800:820:1:1::228-2800:820:1:1::254" }
], "interface": "eth0" ,
"pools": [ { "pool": "2800:820:1:2::228-2800:820:1:2::254" }
], "interface": "eth0" ,
"pd-pools": [ { "prefix": "2800:820:1:100::", "prefix-len":
56, "delegated-len": 60 } ]
}
]
I'll wait until next code review to test “pool” and “pd-pool” in
different subnets.
Regards.
El 02/02/15 a las 12:27, kea-users-request at lists.isc.org escribió:
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> 1. Prefix delegation (Mauro Gasparini)
> 2. Re: Prefix delegation (Marcin Siodelski)
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> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 02 Feb 2015 12:11:00 -0300
> From: Mauro Gasparini <mjgaspa at cablenet.com.ar>
> To: kea-users at lists.isc.org
> Subject: [Kea-users] Prefix delegation
> Message-ID: <54CF9384.8010002 at cablenet.com.ar>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> Hi,
> I would like to know if anyone has successfully configured prefix
> delegation in dhcpv6.
> In my case I'm trying to delegate network prefixes 2800:820:3::/56 to
> customers that require it (without specifying any subnet in particular).
>
> *My kea setup is as follows:*
>
> # cat /etc/kea/kea.conf
>
> {
> # DHCPv6 configuration starts on the next line
> "Dhcp6": {
>
> # First we set up global values
> "interfaces": [ "eth0" ],
> "renew-timer": 1000,
> "rebind-timer": 2000,
> "preferred-lifetime": 3000,
> "valid-lifetime": 4000,
>
> "option-data": [
> {
> "name": "dns-servers",
> "code": 23,
> "space": "dhcp6",
> "csv-format": true,
> "data": "2800:820:1:2::18"
> }
> ],
> # Next we specify the type of lease database
> "lease-database": {
> "type": "memfile",
> "persist": true,
> "name": "/usr/local/var/kea/kea-leases6.csv"
> },
>
> # Finally, we list the subnets from which we will be leasing addresses.
> "subnet6": [
> { "subnet": "2800:820:1:4::/64", "pools": [ { "pool":
> "2800:820:1:4::228-2800:820:1:4::254" } ],"interface": "eth0" },
> { "subnet": "2800:820:3::/56",
> "pd-pools": [ { "prefix": "2800:820:3::", "prefix-len": 56,
> "delegated-len": 60 } ],"interface": "eth0"
> }
> ]
> },
> # The following configures logging. It assumes that warning messages
> # will be logged to stdout.
> "Logging": {
> "loggers": [
> {
> "name": "kea-dhcp6",
> "output_options": [
> {
> # "output": "tdout"
> "output": "/usr/local/var/kea/kea.log"
> }
> ],
> "severity": "WARN"
> }
> ]
> }
>
> # DHCPv6 configuration ends with the next line
> }
>
> *In logs I see that it delivers a lease of IA_NA but it cannot deliver
> IA_PD:*
>
> # tail /usr/local/var/kea/kea.log
>
> 2015-02-02 12:18:05.831 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_CFGMGR_SUBNET6_IFACE selected subnet 2800:820:1:4::/64 for
> packet received over interface eth0
> 2015-02-02 12:18:05.831 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_CFGMGR_SUBNET6_IFACE selected subnet 2800:820:1:4::/64 for
> packet received over interface eth0
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_CFGMGR_SUBNET6_IFACE selected subnet 2800:820:1:4::/64 for
> packet received over interface eth0
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_SUBNET_SELECTED the 2800:820:1:4::/64 subnet was selected for
> client assignment
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_PROCESS_IA_NA_REQUEST server is processing IA_NA option
> (duid=00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d, iaid=1, hint=(no hint))
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_MEMFILE_GET_IAID_SUBID_DUID obtaining IPv6 leases for IAID 1,
> Subnet ID 1, DUID 00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d and lease
> type IA_NA
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_MEMFILE_GET_ADDR6 obtaining IPv6 lease for address
> 2800:820:1:4::229 and lease type IA_NA
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_MEMFILE_GET_ADDR6 obtaining IPv6 lease for address
> 2800:820:1:4::229 and lease type IA_NA
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcp6/30329] DHCP6_LEASE_ADVERT
> address lease 2800:820:1:4::229 advertised (client
> duid=00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d, iaid=1)
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_PROCESS_IA_PD_REQUEST server is processing IA_PD option
> (duid=00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d, iaid=1, hint=(no hint))
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_MEMFILE_GET_IAID_SUBID_DUID obtaining IPv6 leases for IAID 1,
> Subnet ID 1, DUID 00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d and lease
> type IA_PD
> 2015-02-02 12:18:05.832 ERROR [kea-dhcp6.dhcpsrv/30329]
> DHCPSRV_ADDRESS6_ALLOC_ERROR error during attempt to allocate an IPv6
> address: No pools defined in selected subnet
> 2015-02-02 12:18:05.832 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_PD_LEASE_ADVERT_FAIL failed to advertise a prefix lease for client
> duid=00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d, iaid=1
> 2015-02-02 12:18:05.833 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_RESPONSE_DATA responding with packet type 2 data is
> localAddr=[ff02::1:2]:547 remoteAddr=[fe80::2e0:4cff:fe0c:19fd]:546
> msgtype=2, transid=0x80e1c
> type=1, len=14: 00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d
> type=2, len=14: 00:01:00:01:1c:22:ed:15:00:01:2e:2a:02:fa
> type=3(IA_NA) iaid=1, t1=1000, t2=2000 1 sub-options:
> type=5(IAADDR) addr=2800:820:1:4::229, preferred-lft=3000,
> valid-lft=4000
>
> type=23 1addr(s): 2800:820:1:2::18
> type=25(IA_PD) iaid=1, t1=0, t2=0 1 sub-options:
> type=13, len=40, data fields:
> #0 6 ( uint16 )
> #1 Sorry, no prefixes could be allocated. ( string )
>
> 2015-02-02 12:18:05.833 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_RESPONSE_DATA responding with packet type 2 data is
> localAddr=[ff02::1:2]:547 remoteAddr=[fe80::2e0:4cff:fe0c:19fd]:546
> msgtype=2, transid=0x80e1c
> type=1, len=14: 00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d
> type=2, len=14: 00:01:00:01:1c:22:ed:15:00:01:2e:2a:02:fa
> type=3(IA_NA) iaid=1, t1=1000, t2=2000 1 sub-options:
> type=5(IAADDR) addr=2800:820:1:4::229, preferred-lft=3000,
> valid-lft=4000
>
> type=23 1addr(s): 2800:820:1:2::18
> type=25(IA_PD) iaid=1, t1=0, t2=0 1 sub-options:
> type=13, len=40, data fields:
> #0 6 ( uint16 )
> #1 Sorry, no prefixes could be allocated. ( string )
>
> 2015-02-02 12:18:06.839 DEBUG [kea-dhcp6.dhcp6/30329]
> DHCP6_PACKET_RECEIVED REQUEST packet received
> 2015-02-02 12:18:06.840 DEBUG [kea-dhcp6.dhcp6/30329] DHCP6_QUERY_DATA
> received packet length 3, data length 0, data is localAddr=[ff02::1:2]:0
> remoteAddr=[fe80::2e0:4cff:fe0c:19fd]:546
> msgtype=3, transid=0x22c8ee
> type=1, len=14: 00:01:00:01:1c:47:92:c6:00:19:21:78:c6:8d
> type=2, len=14: 00:01:00:01:1c:22:ed:15:00:01:2e:2a:02:fa
> type=3(IA_NA) iaid=1, t1=4294967295, t2=4294967295 1 sub-options:
> type=5(IAADDR) addr=2800:820:1:4::229, preferred-lft=3000,
> valid-lft=4000
>
> type=6, len=2:
> type=8, len=2:
> type=25(IA_PD) iaid=1, t1=4294967295, t2=4294967295 0 sub-options:
>
> *Server IP conf is:*
>
> # ip -6 addr list
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
> inet6 ::1/128 scope host
> valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
> inet6 2800:820:1:4::1/64 scope global
> valid_lft forever preferred_lft forever
> inet6 fe80::201:2eff:fe2a:2fa/64 scope link
> valid_lft forever preferred_lft forever
>
>
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