diff --git a/charts/timescaledb-multinode/templates/statefulset-timescaledb-accessnode.yaml b/charts/timescaledb-multinode/templates/statefulset-timescaledb-accessnode.yaml
index dd06740a..ba690782 100644
--- a/charts/timescaledb-multinode/templates/statefulset-timescaledb-accessnode.yaml
+++ b/charts/timescaledb-multinode/templates/statefulset-timescaledb-accessnode.yaml
@@ -79,6 +79,11 @@ spec:
             echo "*:*:*:postgres:${POSTGRES_PASSWORD_DATA_NODE}" > "${PGDATA}/../.pgpass"
             chown postgres:postgres "${PGDATA}/../.pgpass" "${PGDATA}/postgresql_helm_customizations.conf"
             chmod 0600 "${PGDATA}/../.pgpass"
+            {{- if .Values.internalIpRange }}
+            echo "Adding {{ .Values.internalIpRange }} in pg_hba.conf"
+            grep -qxF "host all all {{ .Values.internalIpRange }} trust" "pg_hba.conf" \
+                || echo "host all all {{ .Values.internalIpRange }} trust" >> pg_hba.conf
+            {{- end }}
         volumeMounts:
         - name: storage-volume
           mountPath: "{{ .Values.persistentVolume.mountPath }}"
diff --git a/charts/timescaledb-multinode/templates/statefulset-timescaledb-datanode.yaml b/charts/timescaledb-multinode/templates/statefulset-timescaledb-datanode.yaml
index b1661168..f40a9cf4 100644
--- a/charts/timescaledb-multinode/templates/statefulset-timescaledb-datanode.yaml
+++ b/charts/timescaledb-multinode/templates/statefulset-timescaledb-datanode.yaml
@@ -71,6 +71,11 @@ spec:
             echo "Writing custom PostgreSQL Parameters to ${PGDATA}/postgresql_helm_customizations.conf"
             echo "cluster_name = '$(hostname)'" > "${PGDATA}/postgresql_helm_customizations.conf"
             echo "${POSTGRESQL_CUSTOM_PARAMETERS}" | sort >> "${PGDATA}/postgresql_helm_customizations.conf"
+            {{- if .Values.internalIpRange }}
+            echo "Adding {{ .Values.internalIpRange }} in pg_hba.conf"
+            grep -qxF "host all all {{ .Values.internalIpRange }} trust" "pg_hba.conf" \
+                || echo "host all all {{ .Values.internalIpRange }} trust" >> pg_hba.conf
+            {{- end }}
             # The TimescaleDB extension should not be available by default, as this interferes with the bootstrapping
             # done by the access nodes. Therefore we drop the extensions from template1
             echo "DROP EXTENSION timescaledb" | /docker-entrypoint.sh postgres --single -D "${PGDATA}" template1
diff --git a/charts/timescaledb-multinode/values.yaml b/charts/timescaledb-multinode/values.yaml
index f991dbd3..ce65a6d2 100644
--- a/charts/timescaledb-multinode/values.yaml
+++ b/charts/timescaledb-multinode/values.yaml
@@ -121,3 +121,6 @@ serviceAccount:
   # The name of the ServiceAccount to use.
   # If not set and create is true, a name is generated using the fullname template
   name:
+
+# This allows to specify the internal ip range of your cluster to add them to pg_hba.conf
+internalIpRange: