diff --git a/mdb/admin.py b/mdb/admin.py
index e025f20..b6ba4dd 100644
--- a/mdb/admin.py
+++ b/mdb/admin.py
@@ -115,7 +115,7 @@ class DomainARecordInline(admin.TabularInline):
 
 class DomainAdmin(admin.ModelAdmin):
     inlines = [DomainSrvRecordInline, DomainTxtRecordInline, DomainARecordInline, DomainCnameRecordInline]
-    list_display = ['domain_name', 'domain_soa', 'domain_admin', 'num_records', 'domain_ipaddr']
+    list_display = ['domain_name', 'domain_soa', 'domain_admin', 'num_records', 'domain_ipaddr',  'domain_ip6addr']
     search_fields = ['domain_name']
 
 
diff --git a/mdb/fixtures/test_data.json b/mdb/fixtures/test_data.json
index 1da19d9..73fd3c9 100644
--- a/mdb/fixtures/test_data.json
+++ b/mdb/fixtures/test_data.json
@@ -1,2756 +1,2757 @@
 [
 {
-    "model": "mdb.nameserver",
     "fields": {
         "hostname": "sega.neuf.no"
     },
+    "model": "mdb.nameserver",
     "pk": 1
 },
 {
-    "model": "mdb.nameserver",
     "fields": {
         "hostname": "atari.neuf.no"
     },
+    "model": "mdb.nameserver",
     "pk": 2
 },
 {
-    "model": "mdb.mailexchange",
     "fields": {
         "priority": 10,
         "hostname": "mx.neuf.no"
     },
+    "model": "mdb.mailexchange",
     "pk": 1
 },
 {
-    "model": "mdb.domain",
     "fields": {
-        "domain_active_serial": 0,
-        "domain_soa": "sega.neuf.no",
-        "domain_retry": 7200,
-        "domain_expire": 604800,
+        "domain_serial": 2015100424,
+        "domain_filename": "/tmp/bind-db.edb.technology",
         "domain_ipaddr": "127.0.0.1",
+        "domain_name": "edb.technology",
+        "domain_expire": 604800,
         "domain_mailexchanges": [
             1
         ],
-        "domain_minimum_ttl": 86400,
-        "domain_ttl": 3600,
+        "domain_active_serial": 0,
+        "domain_ip6addr": "::1",
         "domain_refresh": 28800,
+        "created_date": "2015-10-03T13:02:53.581",
+        "domain_soa": "sega.neuf.no",
         "domain_admin": "sysadmin@neuf.no",
-        "domain_serial": 2015100313,
+        "domain_minimum_ttl": 86400,
+        "domain_retry": 7200,
         "domain_nameservers": [
             1,
             2
         ],
-        "domain_filename": "/tmp/bind-db.edb.technology",
-        "created_date": "2015-10-03T13:02:53.581",
-        "domain_name": "edb.technology"
+        "domain_ttl": 3600
     },
+    "model": "mdb.domain",
     "pk": 1
 },
 {
-    "model": "mdb.dhcpconfig",
     "fields": {
-        "log_facility": "local7",
-        "max_lease_time": 7200,
         "ddns_update_style": "none",
-        "authoritative": false,
-        "serial": 2015100401,
-        "active_serial": 1,
         "name": "default",
-        "default_lease_time": 600
+        "authoritative": false,
+        "log_facility": "local7",
+        "serial": 2015100424,
+        "active_serial": 1,
+        "default_lease_time": 600,
+        "max_lease_time": 7200
     },
+    "model": "mdb.dhcpconfig",
     "pk": 1
 },
 {
-    "model": "mdb.ip6subnet",
     "fields": {
+        "domain_serial": 1,
+        "domain_retry": 7200,
+        "name": "client-ipv6",
+        "domain_name": "3.0.0.0.6.b.e.e.8.d.6.1.1.0.0.2.ip6.arpa",
+        "domain_expire": 604800,
+        "domain_filename": "/tmp/bind-reverse-v6-2001-16d8-eeb6-3-64.ip6.arpa",
+        "netmask": 64,
+        "domain_active_serial": 0,
+        "domain_refresh": 28800,
         "created_date": "2015-10-04T12:50:12.248",
         "domain_soa": "sega.neuf.no",
-        "domain_retry": 7200,
-        "domain_expire": 604800,
-        "domain_ttl": 3600,
-        "domain_minimum_ttl": 86400,
-        "network": "2001:16d8:eeb6:3",
-        "domain_serial": 1,
-        "domain_refresh": 28800,
         "domain_admin": "sysadmin@neuf.no",
-        "domain_active_serial": 0,
-        "netmask": 64,
+        "domain_minimum_ttl": 86400,
+        "domain_ttl": 3600,
         "domain_nameservers": [
             1,
             2
         ],
-        "domain_filename": "/tmp/bind-reverse-v6-2001-16d8-eeb6-3-64.ip6.arpa",
-        "name": "client-ipv6",
-        "domain_name": "3.0.0.0.6.b.e.e.8.d.6.1.1.0.0.2.ip6.arpa"
+        "network": "2001:16d8:eeb6:3"
     },
+    "model": "mdb.ip6subnet",
     "pk": 1
 },
 {
-    "model": "mdb.ip4subnet",
     "fields": {
+        "dhcp_config": 1,
+        "domain_serial": 2015100423,
+        "domain_retry": 7200,
+        "dhcp_dynamic_end": "10.0.3.254",
+        "name": "clients",
+        "dhcp_dynamic": true,
+        "dhcp_dynamic_start": "10.0.3.2",
+        "domain_name": "3.0.10.in-addr.arpa",
+        "domain_expire": 604800,
+        "domain_filename": "/tmp/bind-db.3.0.10.in-addr.arpa",
+        "netmask": "255.255.255.0",
+        "domain_active_serial": 0,
+        "domain_refresh": 28800,
         "created_date": "2015-10-03T13:08:17.765",
         "domain_soa": "sega.neuf.no",
-        "dhcp_config": 1,
-        "domain_retry": 7200,
-        "dhcp_dynamic_start": "10.0.3.2",
-        "domain_expire": 604800,
+        "domain_admin": "sysadmin@neuf.no",
+        "domain_minimum_ttl": 86400,
         "domain_ttl": 3600,
         "domain_nameservers": [
             1,
             2
         ],
-        "dhcp_dynamic_end": "10.0.3.254",
-        "domain_minimum_ttl": 86400,
-        "network": "10.0.3.0",
-        "domain_serial": 2015100313,
-        "domain_refresh": 28800,
-        "domain_admin": "sysadmin@neuf.no",
-        "domain_active_serial": 0,
-        "netmask": "255.255.255.0",
-        "dhcp_dynamic": true,
-        "domain_filename": "/tmp/bind-db.3.0.10.in-addr.arpa",
-        "name": "clients",
-        "domain_name": "3.0.10.in-addr.arpa"
+        "network": "10.0.3.0"
     },
+    "model": "mdb.ip4subnet",
     "pk": 1
 },
 {
-    "model": "mdb.dhcpoption",
     "fields": {
-        "key": "domain-name",
         "ip4subnet": 1,
-        "value": "\"edb.technology\""
+        "value": "\"edb.technology\"",
+        "key": "domain-name"
     },
+    "model": "mdb.dhcpoption",
     "pk": 1
 },
 {
-    "model": "mdb.dhcpoption",
     "fields": {
-        "key": "domain-name-servers",
         "ip4subnet": 1,
-        "value": "158.36.190.194, 158.36.190.199, 8.8.8.8"
+        "value": "158.36.190.194, 158.36.190.199, 8.8.8.8",
+        "key": "domain-name-servers"
     },
+    "model": "mdb.dhcpoption",
     "pk": 2
 },
 {
-    "model": "mdb.dhcpoption",
     "fields": {
-        "key": "routers",
         "ip4subnet": 1,
-        "value": "158.36.186.1"
+        "value": "158.36.186.1",
+        "key": "routers"
     },
+    "model": "mdb.dhcpoption",
     "pk": 3
 },
 {
-    "model": "mdb.dhcpcustomfield",
     "fields": {
         "ip4subnet": 1,
         "value": "deny unknown-clients"
     },
+    "model": "mdb.dhcpcustomfield",
     "pk": 1
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.1",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.1"
     },
+    "model": "mdb.ip4address",
     "pk": 1
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.2",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.2"
     },
+    "model": "mdb.ip4address",
     "pk": 2
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.3",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.3"
     },
+    "model": "mdb.ip4address",
     "pk": 3
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.4",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.4"
     },
+    "model": "mdb.ip4address",
     "pk": 4
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.5",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.5"
     },
+    "model": "mdb.ip4address",
     "pk": 5
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.6",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.6"
     },
+    "model": "mdb.ip4address",
     "pk": 6
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.7",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.7"
     },
+    "model": "mdb.ip4address",
     "pk": 7
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.8",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.8"
     },
+    "model": "mdb.ip4address",
     "pk": 8
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.9",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.9"
     },
+    "model": "mdb.ip4address",
     "pk": 9
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.10",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.10"
     },
+    "model": "mdb.ip4address",
     "pk": 10
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.11",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.11"
     },
+    "model": "mdb.ip4address",
     "pk": 11
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.12",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.12"
     },
+    "model": "mdb.ip4address",
     "pk": 12
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.13",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.13"
     },
+    "model": "mdb.ip4address",
     "pk": 13
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.14",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.14"
     },
+    "model": "mdb.ip4address",
     "pk": 14
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.15",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.15"
     },
+    "model": "mdb.ip4address",
     "pk": 15
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.16",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.16"
     },
+    "model": "mdb.ip4address",
     "pk": 16
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.17",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.17"
     },
+    "model": "mdb.ip4address",
     "pk": 17
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.18",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.18"
     },
+    "model": "mdb.ip4address",
     "pk": 18
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.19",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.19"
     },
+    "model": "mdb.ip4address",
     "pk": 19
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.20",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.20"
     },
+    "model": "mdb.ip4address",
     "pk": 20
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.21",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.21"
     },
+    "model": "mdb.ip4address",
     "pk": 21
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.22",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.22"
     },
+    "model": "mdb.ip4address",
     "pk": 22
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.23",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.23"
     },
+    "model": "mdb.ip4address",
     "pk": 23
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.24",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.24"
     },
+    "model": "mdb.ip4address",
     "pk": 24
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.25",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.25"
     },
+    "model": "mdb.ip4address",
     "pk": 25
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.26",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.26"
     },
+    "model": "mdb.ip4address",
     "pk": 26
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.27",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.27"
     },
+    "model": "mdb.ip4address",
     "pk": 27
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.28",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.28"
     },
+    "model": "mdb.ip4address",
     "pk": 28
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.29",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.29"
     },
+    "model": "mdb.ip4address",
     "pk": 29
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.30",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.30"
     },
+    "model": "mdb.ip4address",
     "pk": 30
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.31",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.31"
     },
+    "model": "mdb.ip4address",
     "pk": 31
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.32",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.32"
     },
+    "model": "mdb.ip4address",
     "pk": 32
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.33",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.33"
     },
+    "model": "mdb.ip4address",
     "pk": 33
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.34",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.34"
     },
+    "model": "mdb.ip4address",
     "pk": 34
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.35",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.35"
     },
+    "model": "mdb.ip4address",
     "pk": 35
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.36",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.36"
     },
+    "model": "mdb.ip4address",
     "pk": 36
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.37",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.37"
     },
+    "model": "mdb.ip4address",
     "pk": 37
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.38",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.38"
     },
+    "model": "mdb.ip4address",
     "pk": 38
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.39",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.39"
     },
+    "model": "mdb.ip4address",
     "pk": 39
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.40",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.40"
     },
+    "model": "mdb.ip4address",
     "pk": 40
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
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-        "address": "10.0.3.231",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.231"
     },
+    "model": "mdb.ip4address",
     "pk": 231
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.232",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.232"
     },
+    "model": "mdb.ip4address",
     "pk": 232
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.233",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.233"
     },
+    "model": "mdb.ip4address",
     "pk": 233
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.234",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.234"
     },
+    "model": "mdb.ip4address",
     "pk": 234
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.235",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.235"
     },
+    "model": "mdb.ip4address",
     "pk": 235
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.236",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.236"
     },
+    "model": "mdb.ip4address",
     "pk": 236
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.237",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.237"
     },
+    "model": "mdb.ip4address",
     "pk": 237
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.238",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.238"
     },
+    "model": "mdb.ip4address",
     "pk": 238
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.239",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.239"
     },
+    "model": "mdb.ip4address",
     "pk": 239
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.240",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.240"
     },
+    "model": "mdb.ip4address",
     "pk": 240
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.241",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.241"
     },
+    "model": "mdb.ip4address",
     "pk": 241
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.242",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.242"
     },
+    "model": "mdb.ip4address",
     "pk": 242
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.243",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.243"
     },
+    "model": "mdb.ip4address",
     "pk": 243
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.244",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.244"
     },
+    "model": "mdb.ip4address",
     "pk": 244
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.245",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.245"
     },
+    "model": "mdb.ip4address",
     "pk": 245
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.246",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.246"
     },
+    "model": "mdb.ip4address",
     "pk": 246
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.247",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.247"
     },
+    "model": "mdb.ip4address",
     "pk": 247
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.248",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.248"
     },
+    "model": "mdb.ip4address",
     "pk": 248
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.249",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.249"
     },
+    "model": "mdb.ip4address",
     "pk": 249
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.250",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.250"
     },
+    "model": "mdb.ip4address",
     "pk": 250
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.251",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.251"
     },
+    "model": "mdb.ip4address",
     "pk": 251
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.252",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.252"
     },
+    "model": "mdb.ip4address",
     "pk": 252
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.253",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.253"
     },
+    "model": "mdb.ip4address",
     "pk": 253
 },
 {
-    "model": "mdb.ip4address",
     "fields": {
         "subnet": 1,
         "ping_avg_rtt": null,
-        "address": "10.0.3.254",
-        "last_contact": null
+        "last_contact": null,
+        "address": "10.0.3.254"
     },
+    "model": "mdb.ip4address",
     "pk": 254
 },
 {
-    "model": "mdb.hosttype",
     "fields": {
-        "description": "Client machine (puppet controlled)",
-        "host_type": "client"
+        "host_type": "client",
+        "description": "Client machine (puppet controlled)"
     },
+    "model": "mdb.hosttype",
     "pk": 1
 },
 {
-    "model": "mdb.operatingsystem",
     "fields": {
-        "arch": "x86_64",
         "version": "14.04",
+        "arch": "x86_64",
         "name": "ubuntu"
     },
+    "model": "mdb.operatingsystem",
     "pk": 1
 },
 {
-    "model": "mdb.host",
     "fields": {
-        "kerberos_principal_created": false,
-        "model": "OptiPlex 760",
-        "location": "kak",
-        "kerberos_principal_created_date": null,
-        "owner": "edb",
-        "created_date": "2015-10-03T13:23:37.061",
+        "kerberos_principal_name": "",
+        "operating_system": 1,
+        "description": "testclient",
+        "request_kerberos_principal": false,
+        "brand": "Dell",
         "hostname": "tut",
         "host_type": 1,
-        "serial_number": "12345678",
         "virtual": false,
-        "brand": "Dell",
         "pxe_installable": true,
-        "kerberos_principal_name": "",
-        "description": "testclient",
+        "kerberos_principal_created_date": null,
+        "location": "kak",
+        "created_date": "2015-10-03T13:23:37.061",
+        "owner": "edb",
+        "serial_number": "12345678",
+        "model": "OptiPlex 760",
         "pxe_key": "e17b532276e247fe80b92540bef71007",
-        "operating_system": 1,
-        "request_kerberos_principal": false
+        "kerberos_principal_created": false
     },
+    "model": "mdb.host",
     "pk": 1
 },
 {
-    "model": "mdb.interface",
     "fields": {
-        "created_date": "2015-10-03T13:23:37.063",
         "domain": 1,
-        "macaddr": "f0:de:f1:58:be:1a",
         "pxe_filename": "pxelinux.0",
-        "dhcp_client": true,
-        "ip4address": 2,
         "name": "eth0",
-        "host": 1
+        "dhcp_client": true,
+        "host": 1,
+        "macaddr": "f0:de:f1:58:be:1a",
+        "ip4address": 2,
+        "created_date": "2015-10-03T13:23:37.063"
     },
+    "model": "mdb.interface",
     "pk": 1
 },
 {
-    "model": "mdb.ip6address",
     "fields": {
-        "subnet": 1,
         "interface": 1,
+        "subnet": 1,
         "address": "::2"
     },
+    "model": "mdb.ip6address",
     "pk": 1
 }
 ]
diff --git a/mdb/migrations/0009_auto_20151004_1652.py b/mdb/migrations/0009_auto_20151004_1652.py
new file mode 100644
index 0000000..af68d18
--- /dev/null
+++ b/mdb/migrations/0009_auto_20151004_1652.py
@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import re
+import django.core.validators
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mdb', '0008_auto_20151004_1258'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='domain',
+            name='domain_ip6addr',
+            field=models.GenericIPAddressField(null=True, protocol='IPv6', blank=True),
+        ),
+        migrations.AlterField(
+            model_name='host',
+            name='hostname',
+            field=models.CharField(max_length=64, validators=[django.core.validators.RegexValidator(regex=re.compile('^(?!-)[-a-z0-9]+(?<!-)$', 2), message='Enter a valid hostname', code='invalid')]),
+        ),
+        migrations.AlterField(
+            model_name='interface',
+            name='macaddr',
+            field=models.CharField(max_length=17, validators=[django.core.validators.RegexValidator(regex=re.compile('^([0-9A-F]{2}[:]){5}([0-9A-F]{2})$', 2), message='Enter a valid MAC address', code='invalid')]),
+        ),
+    ]
diff --git a/mdb/models.py b/mdb/models.py
index bb404cc..ca85d65 100644
--- a/mdb/models.py
+++ b/mdb/models.py
@@ -40,6 +40,7 @@ class Domain(models.Model):
     domain_minimum_ttl = models.IntegerField(default=86400)
     domain_admin = models.EmailField()
     domain_ipaddr = models.GenericIPAddressField(protocol='IPv4')
+    domain_ip6addr = models.GenericIPAddressField(protocol='IPv6', blank=True, null=True)
     domain_filename = models.CharField(max_length=256)
     created_date = models.DateTimeField(auto_now_add=True)
 
@@ -92,6 +93,9 @@ class Domain(models.Model):
         if self.domain_ipaddr is not None:
             content += "@\tIN\tA\t%s\n" % self.domain_ipaddr
 
+        if self.domain_ip6addr is not None:
+            content += "@\tIN\tAAAA\t%s\n" % self.domain_ip6addr
+
         content += "; SRV records\n"
 
         for srv in self.domainsrvrecord_set.all():