diff --git a/external.conf b/external.conf
index d3bd68c..742a89d 100644
--- a/external.conf
+++ b/external.conf
@@ -2,6 +2,7 @@
 location /out/helsinki-fi.smoove.pro/ {
   proxy_pass  http://helsinki-fi.smoove.pro/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache ext_cache;
@@ -16,6 +17,7 @@ location /out/helsinki-fi.smoove.pro/ {
 location /out/data.foli.fi/ {
   proxy_pass  http://data.foli.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache ext_cache;
@@ -30,6 +32,7 @@ location /out/data.foli.fi/ {
 location /out/p.hsl.fi/ {
   proxy_pass  https://p.hsl.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache ext_cache;
@@ -44,6 +47,7 @@ location /out/p.hsl.fi/ {
 location /out/92.62.36.215/ {
   proxy_pass    http://92.62.36.215/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -58,6 +62,7 @@ location /out/92.62.36.215/ {
 location /out/beta.liikennevirasto.fi/ {
   proxy_pass    https://beta.liikennevirasto.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -72,6 +77,7 @@ location /out/beta.liikennevirasto.fi/ {
 location /out/vilkku.mattersoft.fi/ {
   proxy_pass    https://vilkku.mattersoft.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -87,6 +93,7 @@ location /out/vilkku.mattersoft.fi/ {
 location /out/jojo.mattersoft.fi/ {
   proxy_pass    https://jojo.mattersoft.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -102,6 +109,7 @@ location /out/jojo.mattersoft.fi/ {
 location /out/lappeenranta.mattersoft.fi/ {
   proxy_pass    https://lappeenranta.mattersoft.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -117,6 +125,7 @@ location /out/lappeenranta.mattersoft.fi/ {
 location /out/linkki.mattersoft.fi/ {
   proxy_pass    https://linkki.mattersoft.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;
@@ -132,6 +141,7 @@ location /out/linkki.mattersoft.fi/ {
 location /out/pilottilissu.tampere.fi/ {
   proxy_pass    https://pilottilissu.tampere.fi/;
   allow 172.17.0.0/16;
+  allow 172.16.0.0/16;
   allow 10.32.0.0/16;
   deny all;
   proxy_cache   ext_cache;