通过VirtualBox Windows安装从Linux路由通信

Question

我正试图用我的Ubuntu笔记本电脑连接到内部客户端网络，但是客户端使用的是Nortel的Contivity VPN，所以它只在Windows中工作。我的想法是使用VirtualBox与Windows建立VPN连接，然后使用Windows作为路由器通过VPN从我的Ubuntu主机路由流量。

我将VirtualBox中的第一个适配器配置为NAT，以使互联网访问更加容易。我将第二个适配器配置为“纯主机”，因此我现在可以在Ubuntu上看到一个新的vboxnet0接口，并在Windows中看到第二个适配器，其中我配置了一个静态IP。

我已经验证了我可以将Ubuntu切换到Windows，Windows可以切换到Ubuntu。

路由表如下所示：

C:\Documents and Settings\val>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...08 00 27 55 ee 35 ...... AMD PCNET Family PCI Ethernet Adapter #2 - Packet Scheduler Miniport
0x3 ...08 00 27 5f 3e 93 ...... AMD PCNET Family PCI Ethernet Adapter - Packet Scheduler Miniport
0x4 ...44 45 53 54 42 00 ...... Nortel IPSECSHM Adapter - Packet Scheduler Miniport
0x5 ...00 00 00 00 00 01 ...... AGN Virtual Network Adapter - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0         10.0.2.2       10.0.2.15       20
         10.0.2.0    255.255.255.0        10.0.2.15       10.0.2.15       20
        10.0.2.15  255.255.255.255        127.0.0.1       127.0.0.1       20
   10.255.255.255  255.255.255.255        10.0.2.15       10.0.2.15       20
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
     192.168.56.0    255.255.255.0     192.168.56.2    192.168.56.2       20
     192.168.56.2  255.255.255.255        127.0.0.1       127.0.0.1       20
   192.168.56.255  255.255.255.255     192.168.56.2    192.168.56.2       20
        224.0.0.0        240.0.0.0        10.0.2.15       10.0.2.15       20
        224.0.0.0        240.0.0.0     192.168.56.2    192.168.56.2       20
  255.255.255.255  255.255.255.255        10.0.2.15       10.0.2.15       1
  255.255.255.255  255.255.255.255     192.168.56.2               5       1
  255.255.255.255  255.255.255.255     192.168.56.2               4       1
  255.255.255.255  255.255.255.255     192.168.56.2    192.168.56.2       1
Default Gateway:          10.0.2.2
===========================================================================
Persistent Routes:
  None

192.168.56.2是第二个连接到Ubuntu端的192.168.56.1的适配器。

现在，当我建立VPN连接时，路由表被Contivity更改，我不能再对主机进行平分，而主机也不能对来宾进行ping。下面是运行VPN的路由表：

C:\Documents and Settings\val>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...08 00 27 55 ee 35 ...... AMD PCNET Family PCI Ethernet Adapter #2 - Packet Scheduler Miniport
0x3 ...08 00 27 5f 3e 93 ...... AMD PCNET Family PCI Ethernet Adapter - Packet Scheduler Miniport
0x4 ...44 45 53 54 42 00 ...... Nortel IPSECSHM Adapter - Packet Scheduler Miniport
0x5 ...00 00 00 00 00 01 ...... AGN Virtual Network Adapter - Packet Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0         10.0.2.2       10.0.2.15       21
          0.0.0.0          0.0.0.0    192.168.32.29   192.168.32.29       1
         10.0.2.0    255.255.255.0        10.0.2.15       10.0.2.15       20
         10.0.2.0    255.255.255.0    192.168.32.29   192.168.32.29       1
        10.0.2.15  255.255.255.255        127.0.0.1       127.0.0.1       20
   10.255.255.255  255.255.255.255        10.0.2.15       10.0.2.15       20
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
     192.168.32.0    255.255.248.0    192.168.32.29   192.168.32.29       30
    192.168.32.29  255.255.255.255        127.0.0.1       127.0.0.1       30
   192.168.32.255  255.255.255.255    192.168.32.29   192.168.32.29       30
     192.168.56.0    255.255.255.0     192.168.56.2    192.168.56.2       20
     192.168.56.0    255.255.255.0    192.168.32.29   192.168.32.29       1
     192.168.56.2  255.255.255.255        127.0.0.1       127.0.0.1       20
   192.168.56.255  255.255.255.255     192.168.56.2    192.168.56.2       20
   192.197.71.160  255.255.255.255         10.0.2.2       10.0.2.15       1
        224.0.0.0        240.0.0.0        10.0.2.15       10.0.2.15       20
        224.0.0.0        240.0.0.0     192.168.56.2    192.168.56.2       20
        224.0.0.0        240.0.0.0    192.168.32.29   192.168.32.29       1
  255.255.255.255  255.255.255.255        10.0.2.15       10.0.2.15       1
  255.255.255.255  255.255.255.255    192.168.32.29   192.168.32.29       1
  255.255.255.255  255.255.255.255     192.168.56.2               5       1
  255.255.255.255  255.255.255.255     192.168.56.2    192.168.56.2       1
Default Gateway:     192.168.32.29
===========================================================================
Persistent Routes:
  None

通过查看路由表，我不明白为什么我失去了ping 192.168.56.1的能力，所以我希望得到一些帮助，或者关于如何进一步解决这个问题的一些想法。

Answer 1

作为VPN策略标准安全实践的一部分，拆分隧道可能已被禁用。您可能会向VPN管理员(S)询问VPN会话是否允许拆分隧道(您可能不想屏住呼吸，因为狭缝隧道通常被认为是糟糕的安全实践)。