diff --git a/samples/net/lwm2m_client/overlay-lwm2m-1.1-core-interop.conf b/samples/net/lwm2m_client/overlay-lwm2m-1.1-core-interop.conf
new file mode 100644
index 00000000000..6a1762ad64c
--- /dev/null
+++ b/samples/net/lwm2m_client/overlay-lwm2m-1.1-core-interop.conf
@@ -0,0 +1,20 @@
+#Enable Portfolio object
+CONFIG_LWM2M_PORTFOLIO_OBJ_SUPPORT=y
+
+#LwM2M v1.1 configure
+CONFIG_LWM2M_VERSION_1_1=y
+CONFIG_LWM2M_COMPOSITE_PATH_LIST_SIZE=10
+
+#Enable SenML JSON content format
+CONFIG_JSON_LIBRARY=y
+CONFIG_BASE64=y
+CONFIG_LWM2M_RW_SENML_JSON_SUPPORT=y
+
+#Enable SenML CBOR content format
+CONFIG_LWM2M_RW_SENML_CBOR_SUPPORT=y
+CONFIG_LWM2M_RW_SENML_CBOR_RECORDS=60
+CONFIG_ZCBOR_CANONICAL=y
+
+#Enable legacy content formats
+CONFIG_LWM2M_RW_JSON_SUPPORT=y
+CONFIG_LWM2M_RW_OMA_TLV_SUPPORT=y