diff --git a/staticlibs/tests/unit/host/python/apf_utils_test.py b/staticlibs/tests/unit/host/python/apf_utils_test.py
index 50bc884..8b390e3 100644
--- a/staticlibs/tests/unit/host/python/apf_utils_test.py
+++ b/staticlibs/tests/unit/host/python/apf_utils_test.py
@@ -122,17 +122,13 @@
       self, mock_adb_shell: MagicMock
   ) -> None:
     mock_adb_shell.return_value = ""  # Successful command output
-    packet_type = "BEEF"
     iface_name = "eth0"
-    dst_mac = "1234567890AB"
     packet_in_hex = "AABBCCDDEEFF"
-    send_raw_packet_downstream(
-        self.mock_ad, packet_type, iface_name, dst_mac, packet_in_hex
-    )
+    send_raw_packet_downstream(self.mock_ad, iface_name, packet_in_hex)
     mock_adb_shell.assert_called_once_with(
         self.mock_ad,
         "cmd network_stack send-raw-packet-downstream"
-        f" {packet_type} {iface_name} {dst_mac} {packet_in_hex}",
+        f" {iface_name} {packet_in_hex}",
     )
 
   @patch("net_tests_utils.host.python.adb_utils.adb_shell")
@@ -143,9 +139,7 @@
         "Any Unexpected Output"
     )
     with asserts.assert_raises(UnexpectedBehaviorError):
-      send_raw_packet_downstream(
-          self.mock_ad, "BEEF", "eth0", "1234567890AB", "AABBCCDDEEFF"
-      )
+      send_raw_packet_downstream(self.mock_ad, "eth0", "AABBCCDDEEFF")
 
   @patch("net_tests_utils.host.python.adb_utils.adb_shell")
   def test_send_raw_packet_downstream_unsupported(
@@ -155,6 +149,4 @@
         cmd="", stdout="Unknown command", stderr="", ret_code=3
     )
     with asserts.assert_raises(UnsupportedOperationException):
-      send_raw_packet_downstream(
-          self.mock_ad, "BEEF", "eth0", "1234567890AB", "AABBCCDDEEFF"
-      )
+      send_raw_packet_downstream(self.mock_ad, "eth0", "AABBCCDDEEFF")
diff --git a/staticlibs/testutils/host/python/apf_utils.py b/staticlibs/testutils/host/python/apf_utils.py
index eea10de..f71464c 100644
--- a/staticlibs/testutils/host/python/apf_utils.py
+++ b/staticlibs/testutils/host/python/apf_utils.py
@@ -137,16 +137,12 @@
   packet += "00" * 46
 
   # Send the packet using a raw socket.
-  send_raw_packet_downstream(
-      ad, ETH_P_ETHERCAT, iface_name, ETHER_BROADCAST, packet
-  )
+  send_raw_packet_downstream(ad, iface_name, packet)
 
 
 def send_raw_packet_downstream(
     ad: android_device.AndroidDevice,
-    packetType: str,
     iface_name: str,
-    dst_mac: str,
     packet_in_hex: str,
 ) -> None:
   """Sends a raw packet over the specified downstream interface.
@@ -158,11 +154,8 @@
 
   Args:
       ad: The AndroidDevice object representing the connected device.
-      packetType: The type of packet to send (e.g., "88A4" for EtherCAT).
       iface_name: The name of the network interface to use (e.g., "wlan0",
         "eth0").
-      dst_mac: The destination MAC address of the packet (e.g., "FFFFFFFFFFFF"
-        for broadcast).
       packet_in_hex: The raw packet data starting from L2 header encoded in
         hexadecimal string format.
 
@@ -181,7 +174,7 @@
 
   cmd = (
       "cmd network_stack send-raw-packet-downstream"
-      f" {packetType} {iface_name} {dst_mac} {packet_in_hex}"
+      f" {iface_name} {packet_in_hex}"
   )
 
   # Expect no output or Unknown command if NetworkStack is too old. Throw otherwise.