diff --git a/admin-guide/configuration/networking.md b/admin-guide/configuration/networking.md
index 66cb774a..aef16a4a 100644
--- a/admin-guide/configuration/networking.md
+++ b/admin-guide/configuration/networking.md
@@ -64,6 +64,19 @@ So there is the list `networking::connections` which selects the network connect
 
 Then for each connection name listed there needs to be a hash in Hiera named `networking::connection::$CONNECTION_NAME`.
 
+If you have a fixed IP address which is in the DNS, you might also interpolate the `ipv4_by_dns` or the `ipv6_by_dns` variable:
+
+```
+networking::connection::psi_network:
+  mac_address: '00:50:56:9d:bb:ad'
+  ipv4_method: 'manual'
+  ipv4_address: '%{ipv4_by_dns}/24'
+  ipv4_gateway: '129.129.187.1'
+  ipv6_method: 'manual'
+  ipv6_address: '%{ipv6_by_dns}'
+  ipv6_gateway: 'abcd:1234::1'
+```
+
 ### Ethernet Connection Definition
 
 The default connection type is `ethernet` (alias for `802-3-ethernet`).