diff --git a/roles/dns-intern/templates/bind/23.172.in-addr.arpa.zone.j2 b/roles/dns-intern/templates/bind/23.172.in-addr.arpa.zone.j2
index 2c04ec6..5864186 100644
--- a/roles/dns-intern/templates/bind/23.172.in-addr.arpa.zone.j2
+++ b/roles/dns-intern/templates/bind/23.172.in-addr.arpa.zone.j2
@@ -1,13 +1,16 @@
 $ORIGIN 23.172.in-addr.arpa.	; base for unqualified names
 $TTL 1h				; default time-to-live
 @				IN	SOA ns.binary.kitchen. hostmaster.binary.kitchen. (
-					2018100400; serial
+					2018103000; serial
 					1d; refresh
 					2h; retry
 					4w; expire
 					1h; minimum time-to-live
 				)
 				IN	NS	ns.binary.kitchen.
+; Loopback
+1.0				IN	PTR	core.binary.kitchen.
+2.0				IN	PTR	erx-bk.binary.kitchen.
 ; Management
 1.1				IN	PTR	v2301.core.binary.kitchen.
 11.1				IN	PTR	ups1.binary.kitchen.
@@ -72,6 +75,4 @@ $GENERATE 2-254 $.10		IN	PTR	vpn-${0,3,d}-10.binary.kitchen.
 1.97				IN	PTR	vtun1.erx-rz.binary.kitchen.
 2.97				IN	PTR	vtun1.erx-bk.binary.kitchen.
 ; Loopback
-1.99				IN	PTR	core.binary.kitchen.
-3.99				IN	PTR	erx-bk.binary.kitchen.
 4.99				IN	PTR	erx-rz.binary.kitchen.
diff --git a/roles/dns-intern/templates/bind/binary.kitchen.zone.j2 b/roles/dns-intern/templates/bind/binary.kitchen.zone.j2
index 20bd0af..01c6ad9 100644
--- a/roles/dns-intern/templates/bind/binary.kitchen.zone.j2
+++ b/roles/dns-intern/templates/bind/binary.kitchen.zone.j2
@@ -1,7 +1,7 @@
 $ORIGIN binary.kitchen		; base for unqualified names
 $TTL 1h				; default time-to-live
 @				IN	SOA ns.binary.kitchen. hostmaster.binary.kitchen. (
-					2018100400; serial
+					2018103000; serial
 					1d; refresh
 					2h; retry
 					4w; expire
@@ -23,6 +23,9 @@ librenms			IN	A	172.23.2.6
 racktables			IN	A	172.23.2.6
 radius1				IN	A	172.23.2.3
 radius2				IN	A	172.23.2.4
+; Loopback
+core				IN	A	172.23.0.1
+erx-bk				IN	A	172.23.0.2
 ; Management
 v2301.core			IN	A	172.23.1.1
 ups1				IN	A	172.23.1.11
@@ -86,6 +89,4 @@ v400.core			IN	A	172.23.96.2
 vtun1.erx-rz			IN	A	172.23.97.1
 vtun1.erx-bk			IN	A	172.23.97.2
 ; Loopback
-core				IN	A	172.23.99.1
-erx-bk				IN	A	172.23.99.3
 erx-rz				IN	A	172.23.99.4