diff --git a/nat/service_iptables.go b/nat/service_iptables.go
index 04fe1f81d8..c803e56db0 100644
--- a/nat/service_iptables.go
+++ b/nat/service_iptables.go
@@ -36,15 +36,11 @@ func (service *serviceIPTables) Add(rule RuleForwarding) {
 func (service *serviceIPTables) Start() error {
 	err := service.ipForward.Enable()
 	if err != nil {
-		return err
+		log.Warn(natLogPrefix, "Failed to enable IP forwarding: ", err)
 	}
 
 	service.clearStaleRules()
-	err = service.enableRules()
-	if err != nil {
-		return err
-	}
-	return nil
+	return service.enableRules()
 }
 
 func (service *serviceIPTables) Stop() {
diff --git a/nat/service_pfctl.go b/nat/service_pfctl.go
index 0b7e438f44..0aabe0775b 100644
--- a/nat/service_pfctl.go
+++ b/nat/service_pfctl.go
@@ -38,7 +38,11 @@ func (service *servicePFCtl) Add(rule RuleForwarding) {
 }
 
 func (service *servicePFCtl) Start() error {
-	service.ipForward.Enable()
+	err := service.ipForward.Enable()
+	if err != nil {
+		log.Warn(natLogPrefix, "Failed to enable IP forwarding: ", err)
+	}
+
 	service.clearStaleRules()
 	return service.enableRules()
 }