diff --git a/src/main/java/org/metricshub/snmp/client/ISnmpClient.java b/src/main/java/org/metricshub/snmp/client/ISnmpClient.java
index 9ff1463..53c1a89 100644
--- a/src/main/java/org/metricshub/snmp/client/ISnmpClient.java
+++ b/src/main/java/org/metricshub/snmp/client/ISnmpClient.java
@@ -73,4 +73,9 @@ default String stripDot(String s) {
 	 * @throws Exception on error (e.g. no such OID).
 	 */
 	String walk(String oid) throws Exception;
+
+	/**
+	 * Frees any resources held by the client, such as network connections or file handles or memory space.
+	 */
+	void freeResources();
 }
diff --git a/src/main/java/org/metricshub/snmp/client/OfflineSnmpClient.java b/src/main/java/org/metricshub/snmp/client/OfflineSnmpClient.java
index 24d124b..4006d2b 100644
--- a/src/main/java/org/metricshub/snmp/client/OfflineSnmpClient.java
+++ b/src/main/java/org/metricshub/snmp/client/OfflineSnmpClient.java
@@ -199,4 +199,9 @@ public String walk(String oid) {
 
 		return walkResult.toString();
 	}
+
+	@Override
+	public void freeResources() {
+		oidValues.clear();
+	}
 }
\ No newline at end of file
diff --git a/src/main/java/org/metricshub/snmp/client/SnmpClient.java b/src/main/java/org/metricshub/snmp/client/SnmpClient.java
index a2f4c1e..862f498 100644
--- a/src/main/java/org/metricshub/snmp/client/SnmpClient.java
+++ b/src/main/java/org/metricshub/snmp/client/SnmpClient.java
@@ -305,6 +305,7 @@ else if (snmpVersion == SNMP_V3) {
 	 * Releases the resources associated to this instance
 	 * (or so at least we believe...)
 	 */
+	@Override
 	public void freeResources() {
 		if (contextv1 != null) {
 			contextv1.destroy();