diff --git a/lib/rfnoc/xport/eth_internal.v b/lib/rfnoc/xport/eth_internal.v
index 49cf838..2e3cf55 100644
--- a/lib/rfnoc/xport/eth_internal.v
+++ b/lib/rfnoc/xport/eth_internal.v
@@ -14,10 +14,11 @@
 
 `default_nettype none
 module eth_internal #(
-  parameter        DWIDTH       = 32,
-  parameter        AWIDTH       = 14,
-  parameter [7:0]  PORTNUM      = 0,
-  parameter [15:0] RFNOC_PROTOVER  = {8'd1, 8'd0}
+  parameter        DWIDTH         = 32,
+  parameter        AWIDTH         = 14,
+  parameter [7:0]  PORTNUM        = 0,
+  parameter [15:0] RFNOC_PROTOVER = {8'd1, 8'd0},
+  parameter        NODE_INST      = 0
 )(
   // Resets
   input wire        bus_rst,
@@ -276,7 +277,7 @@ module eth_internal #(
   eth_interface #(
      .PROTOVER(RFNOC_PROTOVER),
      .MTU(10),
-     .NODE_INST(0),
+     .NODE_INST(NODE_INST),
      .REG_AWIDTH (AWIDTH),
      .BASE(REG_BASE_ETH_SWITCH)
   ) eth_interface (
diff --git a/lib/rfnoc/xport_sv/eth_ipv4_internal.sv b/lib/rfnoc/xport_sv/eth_ipv4_internal.sv
index 8166fda..1851ef2 100644
--- a/lib/rfnoc/xport_sv/eth_ipv4_internal.sv
+++ b/lib/rfnoc/xport_sv/eth_ipv4_internal.sv
@@ -43,6 +43,7 @@ module eth_ipv4_internal #(
   parameter        DWIDTH         = 32,
   parameter        AWIDTH         = 14,
   parameter [ 7:0] PORTNUM        = 0,
+  parameter        NODE_INST      = 0,
   parameter [15:0] RFNOC_PROTOVER = {8'd1, 8'd0}
 ) (
   input wire bus_clk,
@@ -349,7 +350,7 @@ module eth_ipv4_internal #(
     .PROTOVER       (RFNOC_PROTOVER),
     .CPU_FIFO_SIZE  (BYTE_MTU),
     .CHDR_FIFO_SIZE (BYTE_MTU),
-    .NODE_INST      (0),
+    .NODE_INST      (NODE_INST),
     .BASE           (REG_BASE_ETH_SWITCH),
     .PREAMBLE_BYTES (6),
     .ADD_SOF        (1),