Firewall added & some fixes

network/apply.go

@@ -72,6 +72,13 @@ func ApplyPending() map[string]error {
 			ClearPendingConfig(name)
 			continue
 		}
+		// For VLAN interfaces ensure the kernel interface exists before ifup.
+		if IsVLAN(name) {
+			if err := EnsureVLANExists(name); err != nil {
+				errs[name] = err
+				continue
+			}
+		}
 		_ = IfDown(name)
 		if cfg := configs[name]; cfg != nil && cfg.Auto {
 			if err := IfUp(name); err != nil {