Search TCP tunnel

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Creating a TCP client/server architecture is another way to provide a virtual network where one guest virtual machine provides the server end of the network and all other guest virtual machines are configured as clients. All network traffic between the guest virtual machines is routed via the guest virtual machine that is configured as the server. This model is also available for use to unprivileged users. There is no default DNS or DHCP support and no outgoing network access. To provide outgoing network access, one of the guest virtual machines should have a second NIC which is connected to one of the first 4 network types thereby providing the appropriate routing. A TCP tunnel is created by manipulating the interface type using a management tool and setting/changing it to server or client, and providing a mac and source address. The result is shown in changes made to the domain XML:

    <interface type='server'>
      <mac address='52:54:00:22:c9:42'>
      <source address='' port='5558'/>
    <interface type='client'>
      <mac address='52:54:00:8b:c9:51'>
      <source address='' port='5558'/>

Figure 20.46. Devices - network interfaces- TCP tunnel

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