diff --git a/templates/820_network-ports-debian.yaml.tt2 b/templates/820_network-ports-debian.yaml.tt2
index 88f22c8..4a4073e 100644
--- a/templates/820_network-ports-debian.yaml.tt2
+++ b/templates/820_network-ports-debian.yaml.tt2
@@ -12,6 +12,7 @@ port:
   # NTP (systemd-timesyncd does not listen)
   udp:123:
     listening: [% ntp.backend == 'timesyncd' ? 'false' : 'true ' %]
+    ip: ["0.0.0.0", "127.0.0.1"]
 
   # Check for a closed port, nothing there.
   tcp:7777:
diff --git a/templates/821_network-ports-ngcp.yaml.tt2 b/templates/821_network-ports-ngcp.yaml.tt2
index 36aaaed..cd4c629 100644
--- a/templates/821_network-ports-ngcp.yaml.tt2
+++ b/templates/821_network-ports-ngcp.yaml.tt2
@@ -197,7 +197,7 @@ port:
   # Redis
   tcp:6379:
     listening: true
-    ip: ["[% ha_int_ips.0 %]"]
+    ip: ["127.0.0.1", "[% ha_int_ips.0 %]"]
 
 [% END -%]
 [% IF is_rtp -%]