set IPs before bringing interface up

slackhq · Sep 20, 2024 · adaa3bf · adaa3bf
1 parent 09d334f
commit adaa3bf
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/overlay/tun_linux.go b/overlay/tun_linux.go
@@ -357,16 +357,16 @@ func (t *tun) Activate() error {
 		t.l.WithError(err).Error("Failed to set tun tx queue length")
 	}
 
+	if err = t.addIPs(link); err != nil {
+		return err
+	}
+
 	// Bring up the interface
 	ifrf.Flags = ifrf.Flags | unix.IFF_UP
 	if err = ioctl(t.ioctlFd, unix.SIOCSIFFLAGS, uintptr(unsafe.Pointer(&ifrf))); err != nil {
 		return fmt.Errorf("failed to bring the tun device up: %s", err)
 	}
 
-	if err = t.addIPs(link); err != nil {
-		return err
-	}
-
 	// Run the interface
 	ifrf.Flags = ifrf.Flags | unix.IFF_UP | unix.IFF_RUNNING
 	if err = ioctl(t.ioctlFd, unix.SIOCSIFFLAGS, uintptr(unsafe.Pointer(&ifrf))); err != nil {