Hamachi:Microsoft ISA Server 2004

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Introduction

Hamachi does not require you to make any changes to your network firewall, 'router' or NAT device. However in a rare cases when your border device is overly restrictive, you may need to tweak its config.

Detail

  1. Start your ISA Server Management Console
  2. Select the firewall Policy section
  3. Click on the TOOLBOX tab (right side of the screen)
  4. Select the protocols section
  5. Select new protocol
  6. Protocol Definition Name : Hamachi Protocol
  7. Click New
  8. Protocol Type : TCP Direction : Outbound Port Range : 12975 to 12975 (for version 0.9.9.3 and newer)
  9. Click OK
  10. Click New
  11. Protocol Type : UDP Direction : Send Port Range : 1 to 65535
  12. Click OK, NEXT, NEXT and Finish
  13. Select the Tasks tab (right side of the screen)
  14. Click create new access rule
  15. Access Rule Name : Hamachi Access Rule
  16. Click Next
  17. Select ALLOW
  18. Choose Selected Protocols
  19. Click ADD and goto USER DEFINED section
  20. Choose : Hamachi Protocol
  21. Click NEXT
  22. Source -> Networks -> Internal
  23. Click NEXT
  24. Destination -> Networks -> External
  25. Click NEXT, NEXT, FINISH
  26. Click APPLY the save the Firewall Rulebase.

Notes

Make sure that both protocols (TCP and the UDP) are in the primary connection section. so the secondary connection section should be empty.

This was tested with Microsoft ISA 2004 SP1 running on Windows 2003 Standard edition and with an Windows XP SP2 client with the firewall client installed.


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