diff --git a/core/device/fdbased/fd_unix.go b/core/device/fdbased/fd_unix.go
index 678bf1e..56f3bc8 100644
--- a/core/device/fdbased/fd_unix.go
+++ b/core/device/fdbased/fd_unix.go
@@ -21,7 +21,7 @@ type FD struct {
 	mtu uint32
 }
 
-func Open(name string, mtu uint32) (device.Device, error) {
+func Open(name string, mtu uint32, offset int) (device.Device, error) {
 	fd, err := strconv.Atoi(name)
 	if err != nil {
 		return nil, fmt.Errorf("cannot open fd: %s", name)
@@ -29,7 +29,7 @@ func Open(name string, mtu uint32) (device.Device, error) {
 	if mtu == 0 {
 		mtu = defaultMTU
 	}
-	return open(fd, mtu)
+	return open(fd, mtu, offset)
 }
 
 func (f *FD) Type() string {
diff --git a/core/device/fdbased/fd_windows.go b/core/device/fdbased/fd_windows.go
index 897108b..e9f0e0a 100644
--- a/core/device/fdbased/fd_windows.go
+++ b/core/device/fdbased/fd_windows.go
@@ -6,6 +6,6 @@ import (
 	"github.com/xjasonlyu/tun2socks/v2/core/device"
 )
 
-func Open(name string, mtu uint32) (device.Device, error) {
+func Open(name string, mtu uint32, offset int) (device.Device, error) {
 	return nil, errors.New("not supported")
 }
diff --git a/core/device/fdbased/open_linux.go b/core/device/fdbased/open_linux.go
index fc3e771..eccf6ca 100644
--- a/core/device/fdbased/open_linux.go
+++ b/core/device/fdbased/open_linux.go
@@ -10,7 +10,7 @@ import (
 	"github.com/xjasonlyu/tun2socks/v2/core/device"
 )
 
-func open(fd int, mtu uint32) (device.Device, error) {
+func open(fd int, mtu uint32, offset int) (device.Device, error) {
 	f := &FD{fd: fd, mtu: mtu}
 
 	ep, err := fdbased.New(&fdbased.Options{
diff --git a/core/device/fdbased/open_others.go b/core/device/fdbased/open_others.go
index bf514d9..1c1535f 100644
--- a/core/device/fdbased/open_others.go
+++ b/core/device/fdbased/open_others.go
@@ -10,10 +10,10 @@ import (
 	"github.com/xjasonlyu/tun2socks/v2/core/device/iobased"
 )
 
-func open(fd int, mtu uint32) (device.Device, error) {
+func open(fd int, mtu uint32, offset int) (device.Device, error) {
 	f := &FD{fd: fd, mtu: mtu}
 
-	ep, err := iobased.New(os.NewFile(uintptr(fd), f.Name()), mtu, 0)
+	ep, err := iobased.New(os.NewFile(uintptr(fd), f.Name()), mtu, offset)
 	if err != nil {
 		return nil, fmt.Errorf("create endpoint: %w", err)
 	}
diff --git a/engine/parse.go b/engine/parse.go
index ec96d7e..bb3adc9 100644
--- a/engine/parse.go
+++ b/engine/parse.go
@@ -56,7 +56,7 @@ func parseDevice(s string, mtu uint32) (device.Device, error) {
 
 	switch driver {
 	case fdbased.Driver:
-		return fdbased.Open(name, mtu)
+		return fdbased.Open(name, mtu, 0)
 	case tun.Driver:
 		return tun.Open(name, mtu)
 	default: