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Windows Hyper-V 2012 R2 -- internal network ?

How can I setup so when APP needs to call
DB it uses a PRIVATE or INTERNAL "Virtual Switch"
so traffic does not go out the NetworkCard ?

  ** one PHYSICAL "test" box
  ** three HyperVs (APP, DB, UTILITY)
  ** end-users access APP
  ** I sometimes access DB & UTILITY
  ** all 3 HyperVs are using
     "Virtual Switch #1 - External Network"
     so I can access them directly if/when needed
2 Solutions
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
You set up a private network that each VM's vNIC is connected to. For access to that VM use a dual vNIC VM with Untangle, SOPHOS UTM, or other software router setup (RRAS on 2008 R2 works good too).

Publish whatever services will be running in the private network via your edge and you are good to go.
Cliff GaliherCommented:
If this is true:  "  ** all 3 HyperVs are using
      "Virtual Switch #1 - External Network"

Then as long as both machines have an IP address on the same subnet, they will communicate over the virtual switch. You need do nothing special to make that work.
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