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diff --git a/doc/examples/kea4/single-subnet.json b/doc/examples/kea4/single-subnet.json
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+// This is an example configuration file for the DHCPv4 server in Kea.
+// It is a basic scenario with one IPv4 subnet configured. The subnet
+// contains a single pool of dynamically allocated addresses.
+
+{ "Dhcp4":
+
+{
+// 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 a lifetime of 4000 seconds.
+  "valid-lifetime": 4000,
+
+// Renew and rebind timers are commented out. This implies that options
+// 58 and 59 will not be sent to the client. In this case it is up to
+// the client to pick the timer values according to RFC2131. Uncomment the
+// timers to send these options to the client.
+//  "renew-timer": 1000,
+//  "rebind-timer": 2000,
+
+// The following list defines subnets. We have only one subnet
+// here. We tell Kea that it is directly available over local interface.
+  "subnet4": [
+    {
+       "pools": [ { "pool":  "192.0.2.1 - 192.0.2.200" } ],
+       "id": 1,
+       "subnet": "192.0.2.0/24",
+       "interface": "eth0"
+    }
+  ],
+
+// The following configures logging. It assumes that messages with at
+// least informational level (info, warn, error and fatal) should be
+// logged to stdout. Alternatively, you can specify stderr here, a filename
+// or 'syslog', which will store output messages via syslog.
+    "loggers": [
+        {
+            "name": "kea-dhcp4",
+            "output-options": [
+                {
+                    "output": "stdout"
+                }
+            ],
+            "severity": "INFO"
+        }
+    ]
+}
+
+}