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VirtNet生成虚拟网卡 VirtNet生成虚拟网卡

据说 “Microsoft KM-TEST 环回适配器” 虚拟网卡功能有限制。

列举一些可以生成虚拟网卡的软件：OpenVPN、VirtualBox、VMware、Npcap、SoftEther、VirtNet 。

本文教程关于VirtNet生成虚拟网卡：

https://www.ntkernel.com/virtnet/ 解压得到3个文件virtnet60.cat 、virtnet60.inf、virtnet60.sys。

想要虚拟多个网卡，可以通过修改virtnet60.inf 文件，并多次安装得到多个虚拟网卡，因为修改了virtnet60.inf 文件，

会导致安装设备时不能通过驱动签名，解决办法是启用测试模式安装驱动。所以安装前准备工作，启用测试模式，重启后安装。

1. 启用命令： bcdedit /set testsigning on
2.重启系统。
3.用记事本编辑文件virtnet60.inf ，并手动安装此驱动：

;-------------------------------------------------------------------------------
; VIRTNET.INF
;
; VirtNet Virtual Ethernet Adapter
;
; Copyright (c) NT Kernel Resources. All rights reserved.

[version]
Signature   = "$Windows NT$"
Class       = Net
ClassGUID   = {4d36e972-e325-11ce-bfc1-08002be10318}
Provider    = %ProviderString%
PnpLockDown = 1
CatalogFile     = virtnet60.cat
DriverVer = 05/28/2020,1.2.0.3

[ControlFlags]
ExcludeFromSelect={b85b7c50-6a01-11d2-b841-00c04fad5171}\virtnet60

[Manufacturer]
%ManufacturerName% = Standard,NTx86.6.0,NTia64.6.0,NTamd64.6.0

[Standard.NTx86.6.0]
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_a ; Root enumerated
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_b
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_c
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_d
%virtnet.DeviceDesc%    = virtnet.ndi, {b85b7c50-6a01-11d2-b841-00c04fad5171}\virtnet60 ; Toaster Bus enumerated

[Standard.NTia64.6.0]
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_a ; Root enumerated
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_b
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_c
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_d
%virtnet.DeviceDesc%    = virtnet.ndi, {b85b7c50-6a01-11d2-b841-00c04fad5171}\virtnet60 ; Toaster Bus enumerated

[Standard.NTamd64.6.0]
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_a ; Root enumerated
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_b
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_c
%virtnet.DeviceDesc%    = virtnet.ndi, root\virtnet60_d
%virtnet.DeviceDesc%    = virtnet.ndi, {b85b7c50-6a01-11d2-b841-00c04fad5171}\virtnet60 ; Toaster Bus enumerated

;-------------------------------------------------------------------------------
; Microsoft Virtual Ethernet Adapter
;
[virtnet.ndi]
Characteristics    = 0x1 ; NCF_VIRTUAL
*IfType            = 0x6 ; IF_TYPE_ETHERNET_CSMACD
*MediaType         = 0x0 ; NdisMedium802_3
*PhysicalMediaType = 14 ; NdisPhysicalMedium802_3
AddReg             = virtnet.Reg, virtnet.params.reg
CopyFiles          = virtnet.CopyFiles

[virtnet.ndi.Services]
AddService         = virtnet60, 2, virtnet.Service, virtnet.EventLog

;-----------------------------------------------------------------------------
; Microsoft Virtual Miniport Common
;
[virtnet.Reg]
HKR,    ,                         BusNumber,           0, "0"
HKR, Ndi,                         Service,             0, "VirtNet60"
HKR, Ndi\Interfaces,              UpperRange,          0, "ndis5"
HKR, Ndi\Interfaces,              LowerRange,          0, "ethernet"

;-----------------------------------------------------------------------------
; Driver and Service Section
;
[virtnet.CopyFiles]
virtnet60.sys,,,2

[virtnet.Service]
DisplayName        = %virtnet.Service.DispName%
ServiceType        = 1 ;%SERVICE_KERNEL_DRIVER%
StartType          = 3 ;%SERVICE_DEMAND_START%
ErrorControl       = 1 ;%SERVICE_ERROR_NORMAL%
ServiceBinary      = %12%\virtnet60.sys
AddReg             = TextModeFlags.Reg

[virtnet.EventLog]
AddReg             = virtnet.AddEventLog.Reg

[virtnet.AddEventLog.Reg]
HKR, , EventMessageFile, 0x00020000, "%%SystemRoot%%\System32\netevent.dll"
HKR, , TypesSupported,   0x00010001, 7

[TextModeFlags.Reg]
HKR, , TextModeFlags,    0x00010001, 0x0001

;-------------------------------------------------------------------------------
; Optional Custom Parameters in the Registry ("Advanced" menu).
[virtnet.params.reg]
; For example:
HKR, NDI\params\NetworkAddress,           ParamDesc,      0, %NetworkAddress%
HKR, NDI\params\NetworkAddress,           type,           0, "edit"
HKR, NDI\params\NetworkAddress,           LimitText,      0, "12"
HKR, NDI\params\NetworkAddress,           UpperCase,      0, "1"
HKR, NDI\params\NetworkAddress,           default,        0, " "
HKR, NDI\params\NetworkAddress,           optional,       0, "1"

[SourceDisksNames]
1 = %DiskId1%,,,""

[SourceDisksFiles]
virtnet60.sys = 1,,

;-----------------------------------------------------------------------------
; DestinationDirs
;
[DestinationDirs]
virtnet.CopyFiles = 12

;-----------------------------------------------------------------------------
; Localizable Strings
;
[Strings]
ProviderString              = "NT Kernel Resources"
ManufacturerName            = "NT Kernel Resources"
virtnet.DeviceDesc          = "VirtNet Network Adapter (1)"
virtnet.Service.DispName    = "VirtNet Network Adapter (1)"
DiskId1                     = "VirtNet Device Installation Disk #1"
NetworkAddress              = "Network Address (MAC)"

[Strings] 部分，修改 NetVirtNet_Desc：
NetVirtNet_Desc = "VirtNet Network Adapter (1)"
virtnet.Service.DispName = "VirtNet Network Adapter (1)"

#说明，“VirtNet Network Adapter (1)”就是自命名的虚拟网卡的名字。

完整图文教程：

Converted Image

4.安装完成后，关闭test模式的命令：bcdedit /set testsigning off

5.自定义 MAC 地址：

VirtNet 支持修改 MAC 地址以区分网卡：
- 右键网卡 > “属性” > “高级”。
- 找到“网络地址”或“MAC 地址”选项。
- 输入唯一 MAC 地址，需满足 NDIS 6.0 要求：
  - & #39318;字节次低位为 1（本地管理地址）。
  - 示例：
    - 网卡 1：02-00-00-00-00-01
    - 网卡 2：02-00-00-00-00-02
    - 网卡 3：02-00-00-00-00-03
如果无“高级”选项，可通过注册表修改：
- 打开 regedit，定位到：
```
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e972-e325-11ce-bfc1-08002be10318}
```
- 找到对应网卡的子项（检查 DriverDesc 是否为 VirtNet），添加：
  - 键：NetworkAddress
  - 值：如 020000000001

MAC地址首字节次低位解释