Windows 7 / Networking

Step 5: Upgrading Your Routing Infrastructure

After you have deployed ISATAP to enable IPv6 hosts to communicate over your IPv4 network infrastructure, you should begin upgrading your network infrastructure (including routers, gateways, and other access devices) to support IPv6. Rather than upgrading your infrastructure to support only IPv6, a more reasonable upgrade goal is dual IPv4/IPv6 support. In many cases, actual replacement of router hardware is not necessary. Because many modern hardware routers support both IPv4 and IPv6 routing, the task of upgrading your routing infrastructure to support IPv6 becomes configuration, not replacement. As you enable IPv6 routing support for a subnet, also enable the DHCPv6 relay agent for the subnet.

Typically, you will begin upgrading your routing infrastructure early in your ISATAP deployment by upgrading the core routers on your network backbone to support IPv6. This will create islands of ISATAP hosts that connect to this backbone to communicate with other IPv6 hosts anywhere in your intranet.

[Previous] [Contents] [Next]

In this tutorial:

  1. Deploying IPv6
  2. Understanding IPv6
  3. Understanding IPv6 Terminology
  4. Understanding IPv6 Addressing
  5. Understanding IPv6 Prefixes
  6. Understanding IPv6 Address Types
  7. Understanding Unicast Addresses
  8. Identifying IPv6 Address Types
  9. Understanding Interface Identifiers
  10. Comparing IPv6 with IPv4
  11. Understanding IPv6 Routing
  12. How IPv6 Routing Works
  13. IPv6 Route Determination Process
  14. IPv6 Routing Table Structure
  15. Understanding ICMPv6 Messages
  16. Understanding Neighbor Discovery
  17. Understanding Address Autoconfiguration
  18. Understanding Name Resolution
  19. Understanding Name Queries
  20. Understanding Name Registration
  21. PTR Records and IPv6
  22. IPv6 Enhancements in Windows 7
  23. Summary of IPv6 Enhancements in Windows 7
  24. Configuring and Troubleshooting IPv6 in Windows 7
  25. Configuring IPv6 in Windows 7 Using the User Interface
  26. Configuring IPv6 in Windows 7 Using Netsh
  27. Other IPv6 Configuration Tasks
  28. Enabling or Disabling IPv6
  29. Disabling Random Interface IDs
  30. Resetting IPv6 Configuration
  31. Displaying Teredo Client Status
  32. Troubleshooting IPv6 Connectivity
  33. Planning for IPv6 Migration
  34. Blocking Teredo
  35. Understanding ISATAP
  36. Migrating an Intranet to IPv6
  37. Step 1: Upgrading Your Applications and Services
  38. Step 2: Preparing Your DNS Infrastructure
  39. Step 3: Upgrading Your Hosts
  40. Step 4: Migrating from IPv4-only to ISATAP
  41. Step 5: Upgrading Your Routing Infrastructure
  42. Step 6: Upgrading Your DHCP Infrastructure
  43. Step 7: Migrating from ISATAP to Native IPv6
  44. The Advantages of IPv6
  45. Address Resolution in IPv6