diff --git a/scripts/nbhelper/device.py b/scripts/nbhelper/device.py
index 05f7ee0..1a1e385 100644
--- a/scripts/nbhelper/device.py
+++ b/scripts/nbhelper/device.py
@@ -305,10 +305,17 @@
             )
 
         # Only management server needs to be configured the whitelist netrange of
-        # internal interface
+        # internal interface, this code will config the nftables parameters
+        # the nftables will do the SNAT for both UE ranges and Aether Central ranges
         if self.data.device_role.name == "Router":
 
             ret["interface_subnets"] = dict()
+
+            ret["acc_routing"] = dict()
+            ret["acc_routing"]["acc_subnets"] = self.data.config_context.pop(
+                "acc_subnets"
+            )
+
             ret["ue_routing"] = dict()
             ret["ue_routing"]["ue_subnets"] = self.data.config_context.pop("ue_subnets")
 
@@ -344,12 +351,17 @@
                                     neighbor.subnet
                                 )
 
+            # Build data which needs by nftables, the UE subnets and ACC subnets
             for prefix in PrefixContainer().all():
 
+                # The subnet in this site which needs the redirecting
                 if "fab" in prefix.data.description:
                     ret["ue_routing"].setdefault("src_subnets", [])
                     ret["ue_routing"]["src_subnets"].append(prefix.data.prefix)
+                    ret["acc_routing"].setdefault("src_subnets", [])
+                    ret["acc_routing"]["src_subnets"].append(prefix.data.prefix)
 
+                # mgmtserver do the SNAT for fabric network on FAB interface
                 if (
                     not ret["ue_routing"].get("snat_addr")
                     and "fab" in prefix.data.description
@@ -362,6 +374,19 @@
                                 )
                                 break
 
+                # mgmtserver do the SNAT for mgmt network on mgmt interface
+                if (
+                    not ret["acc_routing"].get("snat_addr")
+                    and "mgmt" in prefix.data.description
+                ):
+                    for interface in self.interfaces.values():
+                        for address in interface["addresses"]:
+                            if address in netaddr.IPSet([prefix.subnet]):
+                                ret["acc_routing"]["snat_addr"] = str(
+                                    netaddr.IPNetwork(address).ip
+                                )
+                                break
+
         return ret
 
     def generate_extra_config(self):