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Today's Topics:
1. ISC DHCPv6-BIND9 DDNS update problem (Mirsad Goran Todorovac)
2. Re: ISC DHCPv6-BIND9 DDNS update problem (Mirsad Goran Todorovac)
----------------------------------------------------------------------
Message: 1
Date: Tue, 7 Jun 2022 19:13:34 +0200
From: Mirsad Goran Todorovac <mirsad.todoro...@alu.unizg.hr>
To: dhcp-users@lists.isc.org
Subject: ISC DHCPv6-BIND9 DDNS update problem
Message-ID: <b304de37-e5a5-c06e-a222-23676b29a...@alu.unizg.hr>
Content-Type: text/plain; charset=UTF-8; format=flowed
Hello all,
I have a problem that our DHCPv6 DDNS update which works reliably with
IPv4 doesn't work at all when we implemented
the dual-stack operation with IPv6. There is not even a warning, notice
or error in the log. No syntax errors in the config
/etc/dhcp/dhcpd6.conf file.
We are running Debian 10 Buster server with BIND 9.16.27 and ISC DHCPd 4.4.1
root@domac:# dpkg -l ...
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name?????????? Version???????????????????? Architecture Description
+++-==============-===========================-============-=================================
ii? bind9????????? 1:9.16.27-1~deb11u1~bpo10+1 amd64 Internet Domain
Name Server
ii? isc-dhcp-server 4.4.1-2+deb10u1 amd64??????? ISC DHCP server for
automatic IP address assignment
Here is a typical example of DHCPv6 transactions found in the log:
Jun? 7 16:53:27 domac dhcpd[2971]: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
2001:b68:2:2800::10:1208
Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 7 16:53:27 domac dhcpd[2971]: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 7 16:53:27 domac dhcpd[2971]: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
2001:b68:2:2800::10:1208
Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 7 16:53:27 domac dhcpd[2971]: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 7 16:53:27 domac dhcpd[2971]: Relay-forward message from
fe80::babe:bfff:fe26:9542 port 547, link address 2001:b68:2:2800::1,
peer address fe80::8aad:43ff:fefa:3f96
Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
2001:b68:2:2800::10:1208
Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 7 16:53:27 domac dhcpd[2971]: Sending Relay-reply to
fe80::babe:bfff:fe26:9542 port 547
fe80::babe:bfff:fe26:9542 is local-link address of our router.
Our DNS/DHCP server is 161.53.235.3 or 2001:b68:2:2800::3, LLA for eth1
is fe80::f21f:afff:fef1:420a/64
Here is our /etc/dhcp/dhcpd6.conf:
default-lease-time 3600;
preferred-lifetime 604800;
option dhcp-renewal-time 3600;
option dhcp-rebinding-time 7200;
allow leasequery;
option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
option dhcp6.domain-search "alu.hr";
option dhcp6.info-refresh-time 21600;
ddns-update-style standard;
ddns-dual-stack-mixed-mode true;
update-conflict-detection false;
update-optimization false;
deny client-updates;
ddns-updates on;
authoritative;
log-facility local7;
ddns-domainname "local.alu.hr.";
ddns-rev-domainname "ip6.arpa.";
include "/etc/bind/ddns.key";
shared-network ilica85.alu.hr {
??? subnet6 2001:b68:2:2800::/64 {
??????? range6 2001:b68:2:2800::10:1000 2001:b68:2:2800::10:13ff;
??????? option dhcp6.domain-search "local.alu.hr","alu.hr";
??????? option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
??????? ddns-domainname "local.alu.hr";
??????? zone local.alu.hr. {
??????????????? # primary6 2001:b68:2:2800::3;
??????????????? primary 127.0.0.1;
??????????????? key DDNS_UPDATE;
??????? }
??????? zone 0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa. {
??????????????? # primary6 2001:b68:2:2800::3;
??????????????? primary 127.0.0.1;
??????????????? key DDNS_UPDATE;
??????? }
??? }
}
subnet6 2001:b68:2:2a00::/64 {
??????? range6 2001:b68:2:2a00::1000 2001:b68:2:2a00::10ff;
??????? option dhcp6.domain-search "slava.alu.hr","alu.hr";
??????? option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
??????? ddns-domainname "slava.alu.hr";
??????? zone slava.alu.hr. {
??????????????? primary6 2001:b68:2:2800::3;
??????????????? key DDNS_UPDATE;
??????? }
??????? zone 0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa. {
??????????????? primary6 2001:b68:2:2800::3;
??????????????? key DDNS_UPDATE;
??????? }
}
The corresponding entries in /etc/bind/named.conf.local are:
??? zone "0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa" in {
??????? type master;
??????? file "/var/cache/bind/0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa.db";
??????? allow-update { key DDNS_UPDATE; };
??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
??????? also-notify { 31.147.205.54; 161.53.2.70; };
??????? forwarders {};
??? };
??? zone "0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa" in {
??????? type master;
??????? file "/var/cache/bind/0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa.db";
??????? allow-update { key DDNS_UPDATE; };
??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
??????? also-notify { 31.147.205.54; 161.53.2.70; };
??????? forwarders {};
??? };
??? zone "local.alu.hr" in {
??????? type master;
??????? file "/var/cache/bind/local.alu.hr.db";
??????? allow-update { key DDNS_UPDATE; };
??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
??????? also-notify { 31.147.205.54; 161.53.2.70; };
??????? forwarders {};
??? };
??? zone "slava.alu.hr" in {
??????? type master;
??????? file "/var/cache/bind/slava.alu.hr.db";
??????? allow-update { key DDNS_UPDATE; };
??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
??????? also-notify { 31.147.205.54; 161.53.2.70; };
??????? dnssec-policy "standard";
??????? key-directory "/var/cache/bind/keys";
??????? forwarders {};
??? };
We are also using views in BIND9, but they work well updating the
"internal" and "universe" zones with DHCPv4, i.e.:
Jun? 7 16:48:21 domac dhcpd[986]: DHCPREQUEST for 192.168.100.215 from
9c:3d:cf:11:aa:a6 (R7000P) via eth1
Jun? 7 16:48:21 domac dhcpd[986]: DHCPACK on 192.168.100.215 to
9c:3d:cf:11:aa:a6 (R7000P) via eth1
Jun? 7 16:48:21 domac dhcpd[986]: Added new forward map from
R7000P.local.alu.hr to 192.168.100.215
Jun? 7 16:48:21 domac dhcpd[986]: Added reverse map from
215.100.168.192.in-addr.arpa. to R7000P.local.alu.hr
As you can see in the options, I tried various combinations, and I seem
to be out of options. But we are new to IPv6
and DHCPv6, so there may be something obvious to you I cannot see (like
DDNS not being enabled in ISC dhcpd binary
with option -6)?
I am very interested personally in IPv6 adoption for we are expecting a
surge in multimedia content provided,
possibly broadcasted, additional options with IoT, security,
surveillance cameras (requiring public IP we are short of).
All of this would be greatly simplified and more adopted if the users,
professors, staff and students wouldn't
have to remember IPv6 address like 2001:b68:2:2800::3 but used an
automatically assigned domain name instead.
Manual IPv6 configuration and static tables for this would be an
overkill, we are understaffed to maintain it.
Thank you very much for your time and help.
Kind regards,
Mirsad Todorovac
--
Mirsad Todorovac
CARNet system engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb
Republic of Croatia, the European Union
--
CARNet sistem in?enjer
Grafi?ki fakultet | Akademija likovnih umjetnosti
Sveu?ili?te u Zagrebu
--
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------------------------------
Message: 2
Date: Wed, 8 Jun 2022 06:14:36 +0200
From: Mirsad Goran Todorovac <mirsad.todoro...@alu.unizg.hr>
To: dhcp-users@lists.isc.org
Subject: Re: ISC DHCPv6-BIND9 DDNS update problem
Message-ID: <0121ba37-0d00-3ef5-6d31-c0b23e81a...@alu.unizg.hr>
Content-Type: text/plain; charset=UTF-8; format=flowed
Dear Sirs,
Having compiled ISC DHCPD 4.4.3 with includes/site.h: #define
DEBUG_DNS_UPDATES
I get the following output. It appears that the DDNS update code isn't
even called for IPv6.
Am I doing something terribly wrong?
Thank you.
Jun? 8 06:09:02 domac dhcpd: ddns.c(150): Allocating ddns_cb=0x5604136c60a0
Jun? 8 06:09:02 domac dhcpd: DDNS: ddns_fwd_srv_connector: ddns_cb:
0x5604136c60a0 flags: 50b state: DDNS_STATE_CLEANUP cur_func: <null>
eresult: 0
Jun? 8 06:09:02 domac dhcpd: DDNS: ddns_modify_fwd
Jun? 8 06:09:02 domac dhcpd: DDNS: build_fwd_add1:
pname:[R7000P.local.alu.hr] uname:[R7000P.local.alu.hr]
Jun? 8 06:09:02 domac dhcpd: DDNS request: id ptr 0x7fdc349e8010
DDNS_STATE_ADD_FW_NXDOMAIN 192.168.100.215 for R7000P.local.alu.hr zone:
local.alu.hr.dhcid:
[00:01:01:52:62:16:06:17:56:5b:21:58:8f:69:59:ee:4e:bb:79:9d:5e:76:9b:3a:f3:b7:2c:0f:cf:01:db:4c:eb:6b:87
Jun? 8 06:09:02 domac dhcpd: ddns.c(1722): Updating lease_ptr for
ddns_cp=0x5604136c60a0 (addr=192.168.100.215)
Jun? 8 06:09:02 domac dhcpd: DHCPREQUEST for 192.168.100.215 from
9c:3d:cf:11:aa:a6 (R7000P) via eth1
Jun? 8 06:09:02 domac dhcpd: DHCPACK on 192.168.100.215 to
9c:3d:cf:11:aa:a6 (R7000P) via eth1
Jun? 8 06:09:02 domac dhcpd: DDNS reply: id ptr 0x7fdc349e8010, result:
YXDOMAIN
Jun? 8 06:09:02 domac dhcpd: DDNS: ddns_fwd_srv_add1: ddns_cb:
0x5604136c60a0 flags: 50b state: DDNS_STATE_ADD_FW_NXDOMAIN cur_func:
ddns_fwd_srv_add1 eresult: 196614
Jun? 8 06:09:02 domac dhcpd: DDNS: ddns_modify_fwd
Jun? 8 06:09:02 domac dhcpd: DDNS: build_fwd_add2:
pname:[R7000P.local.alu.hr] uname:[R7000P.local.alu.hr]
Jun? 8 06:09:02 domac dhcpd: DDNS request: id ptr 0x7fdc349e8010
DDNS_STATE_ADD_FW_YXDHCID 192.168.100.215 for R7000P.local.alu.hr zone:
local.alu.hr.dhcid:
[00:01:01:52:62:16:06:17:56:5b:21:58:8f:69:59:ee:4e:bb:79:9d:5e:76:9b:3a:f3:b7:2c:0f:cf:01:db:4c:eb:6b:87
Jun? 8 06:09:02 domac dhcpd: DDNS reply: id ptr 0x7fdc349e8010, result:
success
Jun? 8 06:09:02 domac dhcpd: DDNS:ddns_fwd_srv_add2: ddns_cb:
0x5604136c60a0 flags: 50b state: DDNS_STATE_ADD_FW_YXDHCID cur_func:
ddns_fwd_srv_add2 eresult: 0
Jun? 8 06:09:02 domac dhcpd: Added new forward map from
R7000P.local.alu.hr to 192.168.100.215
Jun? 8 06:09:02 domac dhcpd: DDNS: ddns_modify_ptr
Jun? 8 06:09:02 domac dhcpd: DDNS request: id ptr 0x7fdc349e8010
DDNS_STATE_ADD_PTR R7000P.local.alu.hr for 215.100.168.192.in-addr.arpa.
zone: 168.192.in-addr.arpa.dhcid:
[00:01:01:52:62:16:06:17:56:5b:21:58:8f:69:59:ee:4e:bb:79:9d:5e:76:9b:3a:f3:b7:2c:0f:cf:01:db:4c:eb:6b:87
Jun? 8 06:09:02 domac dhcpd: DDNS reply: id ptr 0x7fdc349e8010, result:
success
Jun? 8 06:09:02 domac dhcpd: Added reverse map from
215.100.168.192.in-addr.arpa. to R7000P.local.alu.hr
Jun? 8 06:09:02 domac dhcpd: ddns.c(1325): Updating lease_ptr for
ddns_cp=0x5604136c60a0 (addr=192.168.100.215)
Jun? 8 06:09:02 domac dhcpd: ddns.c(1325):
find_lease_by_ip_addr(192.168.100.215) successful:lease=0x7fdc346b4e20
Jun? 8 06:09:02 domac dhcpd: ddns.c(1326): freeing ddns_cb=0x5604136c60a0
Jun? 8 06:09:46 domac dhcpd: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 8 06:09:46 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:09:46 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:09:46 domac dhcpd: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 8 06:09:46 domac dhcpd: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 8 06:09:46 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:09:46 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:09:46 domac dhcpd: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 8 06:09:46 domac dhcpd: Relay-forward message from
fe80::babe:bfff:fe26:9542 port 547, link address 2001:b68:2:2800::1,
peer address fe80::8aad:43ff:fefa:3f96
Jun? 8 06:09:46 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:09:46 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:09:46 domac dhcpd: Sending Relay-reply to
fe80::babe:bfff:fe26:9542 port 547
Jun? 8 06:11:57 domac dhcpd: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 8 06:11:57 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:11:57 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:11:57 domac dhcpd: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 8 06:11:57 domac dhcpd: Solicit message from
fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
Jun? 8 06:11:57 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:11:57 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:11:57 domac dhcpd: Sending Advertise to
fe80::8aad:43ff:fefa:3f96 port 546
Jun? 8 06:11:57 domac dhcpd: Relay-forward message from
fe80::babe:bfff:fe26:9542 port 547, link address 2001:b68:2:2800::1,
peer address fe80::8aad:43ff:fefa:3f96
Jun? 8 06:11:57 domac dhcpd: Picking pool address 2001:b68:2:2800::10:1208
Jun? 8 06:11:57 domac dhcpd: Advertise NA: address
2001:b68:2:2800::10:1208 to client with duid
00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
3600 seconds
Jun? 8 06:11:57 domac dhcpd: Sending Relay-reply to
fe80::babe:bfff:fe26:9542 port 547
On 07. 06. 2022. 19:13, Mirsad Goran Todorovac wrote:
> Hello all,
>
> I have a problem that our DHCPv6 DDNS update which works reliably with
> IPv4 doesn't work at all when we implemented
> the dual-stack operation with IPv6. There is not even a warning,
> notice or error in the log. No syntax errors in the config
> /etc/dhcp/dhcpd6.conf file.
>
> We are running Debian 10 Buster server with BIND 9.16.27 and ISC DHCPd
> 4.4.1
>
> root@domac:# dpkg -l ...
> Desired=Unknown/Install/Remove/Purge/Hold
> |
> Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> ||/ Name?????????? Version???????????????????? Architecture Description
> +++-==============-===========================-============-=================================
>
>
> ii? bind9????????? 1:9.16.27-1~deb11u1~bpo10+1 amd64 Internet Domain
> Name Server
> ii? isc-dhcp-server 4.4.1-2+deb10u1 amd64??????? ISC DHCP server for
> automatic IP address assignment
>
> Here is a typical example of DHCPv6 transactions found in the log:
>
> Jun? 7 16:53:27 domac dhcpd[2971]: Solicit message from
> fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
> Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
> 2001:b68:2:2800::10:1208
> Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
> 2001:b68:2:2800::10:1208 to client with duid
> 00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
> 3600 seconds
> Jun? 7 16:53:27 domac dhcpd[2971]: Sending Advertise to
> fe80::8aad:43ff:fefa:3f96 port 546
> Jun? 7 16:53:27 domac dhcpd[2971]: Solicit message from
> fe80::8aad:43ff:fefa:3f96 port 546, transaction ID 0x55E06C00
> Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
> 2001:b68:2:2800::10:1208
> Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
> 2001:b68:2:2800::10:1208 to client with duid
> 00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
> 3600 seconds
> Jun? 7 16:53:27 domac dhcpd[2971]: Sending Advertise to
> fe80::8aad:43ff:fefa:3f96 port 546
> Jun? 7 16:53:27 domac dhcpd[2971]: Relay-forward message from
> fe80::babe:bfff:fe26:9542 port 547, link address 2001:b68:2:2800::1,
> peer address fe80::8aad:43ff:fefa:3f96
> Jun? 7 16:53:27 domac dhcpd[2971]: Picking pool address
> 2001:b68:2:2800::10:1208
> Jun? 7 16:53:27 domac dhcpd[2971]: Advertise NA: address
> 2001:b68:2:2800::10:1208 to client with duid
> 00:01:00:01:27:7d:dd:63:88:ad:43:fa:3f:96 iaid = -1774192061 valid for
> 3600 seconds
> Jun? 7 16:53:27 domac dhcpd[2971]: Sending Relay-reply to
> fe80::babe:bfff:fe26:9542 port 547
>
> fe80::babe:bfff:fe26:9542 is local-link address of our router.
>
> Our DNS/DHCP server is 161.53.235.3 or 2001:b68:2:2800::3, LLA for
> eth1 is fe80::f21f:afff:fef1:420a/64
>
> Here is our /etc/dhcp/dhcpd6.conf:
>
> default-lease-time 3600;
> preferred-lifetime 604800;
> option dhcp-renewal-time 3600;
> option dhcp-rebinding-time 7200;
> allow leasequery;
>
> option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
> option dhcp6.domain-search "alu.hr";
>
> option dhcp6.info-refresh-time 21600;
>
> ddns-update-style standard;
> ddns-dual-stack-mixed-mode true;
> update-conflict-detection false;
> update-optimization false;
> deny client-updates;
> ddns-updates on;
> authoritative;
> log-facility local7;
> ddns-domainname "local.alu.hr.";
> ddns-rev-domainname "ip6.arpa.";
>
> include "/etc/bind/ddns.key";
>
> shared-network ilica85.alu.hr {
> ??? subnet6 2001:b68:2:2800::/64 {
> ??????? range6 2001:b68:2:2800::10:1000 2001:b68:2:2800::10:13ff;
> ??????? option dhcp6.domain-search "local.alu.hr","alu.hr";
> ??????? option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
> ??????? ddns-domainname "local.alu.hr";
>
> ??????? zone local.alu.hr. {
> ??????????????? # primary6 2001:b68:2:2800::3;
> ??????????????? primary 127.0.0.1;
> ??????????????? key DDNS_UPDATE;
> ??????? }
> ??????? zone 0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa. {
> ??????????????? # primary6 2001:b68:2:2800::3;
> ??????????????? primary 127.0.0.1;
> ??????????????? key DDNS_UPDATE;
> ??????? }
> ??? }
> }
>
> subnet6 2001:b68:2:2a00::/64 {
> ??????? range6 2001:b68:2:2a00::1000 2001:b68:2:2a00::10ff;
> ??????? option dhcp6.domain-search "slava.alu.hr","alu.hr";
> ??????? option dhcp6.name-servers 2001:b68:2:2800::3,2001:b68:c:2::70:0;
> ??????? ddns-domainname "slava.alu.hr";
>
> ??????? zone slava.alu.hr. {
> ??????????????? primary6 2001:b68:2:2800::3;
> ??????????????? key DDNS_UPDATE;
> ??????? }
>
> ??????? zone 0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa. {
> ??????????????? primary6 2001:b68:2:2800::3;
> ??????????????? key DDNS_UPDATE;
> ??????? }
> }
>
> The corresponding entries in /etc/bind/named.conf.local are:
>
> ??? zone "0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa" in {
> ??????? type master;
> ??????? file
> "/var/cache/bind/0.0.8.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa.db";
> ??????? allow-update { key DDNS_UPDATE; };
> ??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
> ??????? also-notify { 31.147.205.54; 161.53.2.70; };
> ??????? forwarders {};
> ??? };
>
> ??? zone "0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa" in {
> ??????? type master;
> ??????? file
> "/var/cache/bind/0.0.a.2.2.0.0.0.8.6.b.0.1.0.0.2.ip6.arpa.db";
> ??????? allow-update { key DDNS_UPDATE; };
> ??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
> ??????? also-notify { 31.147.205.54; 161.53.2.70; };
> ??????? forwarders {};
> ??? };
>
> ??? zone "local.alu.hr" in {
> ??????? type master;
> ??????? file "/var/cache/bind/local.alu.hr.db";
> ??????? allow-update { key DDNS_UPDATE; };
> ??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
> ??????? also-notify { 31.147.205.54; 161.53.2.70; };
> ??????? forwarders {};
> ??? };
>
> ??? zone "slava.alu.hr" in {
> ??????? type master;
> ??????? file "/var/cache/bind/slava.alu.hr.db";
> ??????? allow-update { key DDNS_UPDATE; };
> ??????? allow-transfer { 31.147.205.54; 161.53.2.70; };
> ??????? also-notify { 31.147.205.54; 161.53.2.70; };
> ??????? dnssec-policy "standard";
> ??????? key-directory "/var/cache/bind/keys";
> ??????? forwarders {};
> ??? };
>
> We are also using views in BIND9, but they work well updating the
> "internal" and "universe" zones with DHCPv4, i.e.:
>
> Jun? 7 16:48:21 domac dhcpd[986]: DHCPREQUEST for 192.168.100.215 from
> 9c:3d:cf:11:aa:a6 (R7000P) via eth1
> Jun? 7 16:48:21 domac dhcpd[986]: DHCPACK on 192.168.100.215 to
> 9c:3d:cf:11:aa:a6 (R7000P) via eth1
> Jun? 7 16:48:21 domac dhcpd[986]: Added new forward map from
> R7000P.local.alu.hr to 192.168.100.215
> Jun? 7 16:48:21 domac dhcpd[986]: Added reverse map from
> 215.100.168.192.in-addr.arpa. to R7000P.local.alu.hr
>
> As you can see in the options, I tried various combinations, and I
> seem to be out of options. But we are new to IPv6
> and DHCPv6, so there may be something obvious to you I cannot see
> (like DDNS not being enabled in ISC dhcpd binary
> with option -6)?
>
> I am very interested personally in IPv6 adoption for we are expecting
> a surge in multimedia content provided,
> possibly broadcasted, additional options with IoT, security,
> surveillance cameras (requiring public IP we are short of).
>
> All of this would be greatly simplified and more adopted if the users,
> professors, staff and students wouldn't
> have to remember IPv6 address like 2001:b68:2:2800::3 but used an
> automatically assigned domain name instead.
>
> Manual IPv6 configuration and static tables for this would be an
> overkill, we are understaffed to maintain it.
>
> Thank you very much for your time and help.
>
> Kind regards,
> Mirsad Todorovac
>
--
Mirsad Goran Todorovac
CARNet sistem in?enjer
Grafi?ki fakultet | Akademija likovnih umjetnosti
Sveu?ili?te u Zagrebu
--
CARNet system engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia
tel. +385 (0)1 3711 451
mob. +385 91 57 88 355
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