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diff --git a/doc/examples/kea6/with-ddns.json b/doc/examples/kea6/with-ddns.json
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+// This is an example configuration file for DHCPv6 server in Kea.
+// It's a basic scenario with one IPv6 subnet configured. It is
+// assumed that one subnet (2001:db8:1::/64 is available directly
+// over eth0 interface.
+
+{ "Dhcp6":
+
+{
+// Kea is told to listen on eth0 interface only.
+  "interfaces-config": {
+    "interfaces": [ "eth0" ]
+  },
+
+// We need to specify the database used to store leases. As of
+// June 2022, three database backends are supported: MySQL,
+// PostgreSQL and the in-memory database, Memfile.
+// We'll use memfile  because it doesn't require any prior set up.
+  "lease-database": {
+      "type": "memfile",
+      "lfc-interval": 3600
+  },
+
+// Addresses will be assigned with preferred and valid lifetimes
+// being 3000 and 4000, respectively. Client is told to start
+// renewing after 1000 seconds. If the server does not respond
+// after 2000 seconds since the lease was granted, client is supposed
+// to start REBIND procedure (emergency renewal that allows switching
+// to a different server).
+  "preferred-lifetime": 3000,
+  "valid-lifetime": 4000,
+  "renew-timer": 1000,
+  "rebind-timer": 2000,
+
+// The following list defines subnets. Each subnet consists of at
+// least subnet and pool entries.
+  "subnet6": [
+    {
+      "pools": [ { "pool": "2001:db8:1::/80" } ],
+      "subnet": "2001:db8:1::/64",
+      "interface": "eth0"
+    }
+  ],
+
+// Enable connectivity with kea-dhcp-ddns
+// (Required for dynamic DNS updates)
+  "dhcp-ddns" : {
+        "enable-updates" : true,
+        "server-ip" : "3001::1",
+        "server-port" : 3432,
+        "sender-ip" : "3001::2",
+        "sender-port" : 3433,
+        "max-queue-size" : 2048,
+        "ncr-protocol" : "UDP",
+        "ncr-format" : "JSON"
+  },
+
+
+// Enable DDNS updates and configure DDNS update behavior
+  "ddns-send-updates" : true,
+  "ddns-override-no-update" : true,
+  "ddns-override-client-update" : true,
+  "ddns-replace-client-name" : "when-present",
+  "ddns-generated-prefix" : "test.prefix",
+  "ddns-qualifying-suffix" : "test.suffix.",
+  "ddns-update-on-renew" : false,
+  "ddns-use-conflict-resolution" : true,
+  "hostname-char-set": "[^A-Za-z0-9.-]",
+  "hostname-char-replacement": "x",
+
+// The following configures logging. It assumes that messages with at
+// least informational level (info, warn, error and fatal) should be
+// logged to stdout.
+    "loggers": [
+        {
+            "name": "kea-dhcp6",
+            "output_options": [
+                {
+                    "output": "stdout"
+                }
+            ],
+            "debuglevel": 0,
+            "severity": "INFO"
+        }
+    ]
+}
+
+}