diff --git a/dlls/iphlpapi/iphlpapi.spec b/dlls/iphlpapi/iphlpapi.spec
index fd00cc093a8..30d9ed7efe0 100644
--- a/dlls/iphlpapi/iphlpapi.spec
+++ b/dlls/iphlpapi/iphlpapi.spec
@@ -108,7 +108,7 @@
 #@ stub GetIpInterfaceTable
 #@ stub GetIpNetEntry2
 @ stdcall GetIpNetTable( ptr ptr long )
-#@ stub GetIpNetTable2
+@ stdcall GetIpNetTable2( long ptr )
 @ stub GetIpNetTableFromStack
 #@ stub GetIpPathEntry
 #@ stub GetIpPathTable
diff --git a/dlls/iphlpapi/iphlpapi_main.c b/dlls/iphlpapi/iphlpapi_main.c
index c7140cd9747..62739491472 100644
--- a/dlls/iphlpapi/iphlpapi_main.c
+++ b/dlls/iphlpapi/iphlpapi_main.c
@@ -3293,3 +3293,14 @@ DWORD WINAPI GetIpForwardTable2(ADDRESS_FAMILY family, PMIB_IPFORWARD_TABLE2 *ta
     if (!once++) FIXME("(%u %p): stub\n", family, table);
     return ERROR_NOT_SUPPORTED;
 }
+
+/******************************************************************
+ *    GetIpNetTable2 (IPHLPAPI.@)
+ */
+DWORD WINAPI GetIpNetTable2(ADDRESS_FAMILY family, PMIB_IPNET_TABLE2 *table)
+{
+    static int once;
+
+    if (!once++) FIXME("(%u %p): stub\n", family, table);
+    return ERROR_NOT_SUPPORTED;
+}
diff --git a/include/netioapi.h b/include/netioapi.h
index f15a80fdc80..e9de7ddf146 100644
--- a/include/netioapi.h
+++ b/include/netioapi.h
@@ -193,6 +193,38 @@ typedef struct _MIB_IPFORWARD_TABLE2
     MIB_IPFORWARD_ROW2 Table[ANY_SIZE];
 } MIB_IPFORWARD_TABLE2, *PMIB_IPFORWARD_TABLE2;
 
+typedef struct _MIB_IPNET_ROW2
+{
+    SOCKADDR_INET Address;
+    NET_IFINDEX InterfaceIndex;
+    NET_LUID InterfaceLuid;
+    UCHAR PhysicalAddress[IF_MAX_PHYS_ADDRESS_LENGTH];
+    ULONG PhysicalAddressLength;
+    NL_NEIGHBOR_STATE State;
+
+    union
+    {
+        struct
+        {
+            BOOLEAN IsRouter : 1;
+            BOOLEAN IsUnreachable : 1;
+        } DUMMYSTRUCTNAME;
+        UCHAR Flags;
+    } DUMMYUNIONNAME;
+
+    union
+    {
+        ULONG LastReachable;
+        ULONG LastUnreachable;
+    } ReachabilityTime;
+} MIB_IPNET_ROW2, *PMIB_IPNET_ROW2;
+
+typedef struct _MIB_IPNET_TABLE2
+{
+    ULONG NumEntries;
+    MIB_IPNET_ROW2 Table[ANY_SIZE];
+} MIB_IPNET_TABLE2, *PMIB_IPNET_TABLE2;
+
 typedef VOID (WINAPI *PIPINTERFACE_CHANGE_CALLBACK)(PVOID, PMIB_IPINTERFACE_ROW,
                                                     MIB_NOTIFICATION_TYPE);
 typedef VOID (WINAPI *PUNICAST_IPADDRESS_CHANGE_CALLBACK)(PVOID, PMIB_UNICASTIPADDRESS_ROW,
diff --git a/include/nldef.h b/include/nldef.h
index 983b96c5529..ef30f7fa4c4 100644
--- a/include/nldef.h
+++ b/include/nldef.h
@@ -111,4 +111,16 @@ typedef struct _NL_INTERFACE_OFFLOAD_ROD
     BOOLEAN TlGiantSendOffloadSupported : 1;
 } NL_INTERFACE_OFFLOAD_ROD, *PNL_INTERFACE_OFFLOAD_ROD;
 
+typedef enum _NL_NEIGHBOR_STATE
+{
+    NlnsUnreachable,
+    NlnsIncomplete,
+    NlnsProbe,
+    NlnsDelay,
+    NlnsStale,
+    NlnsReachable,
+    NlnsPermanent,
+    NlnsMaximum,
+} NL_NEIGHBOR_STATE, *PNL_NEIGHBOR_STATE;
+
 #endif /* __WINE_NLDEF_H */