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Describe IPv6 Tunneling Techniques :

4.1 Tunneling
4.1.e Describe IPv6 tunneling techniques
4.1.e [i] 6in4, 6to4
4.1.e [ii] ISATAP
4.1.e [iii] 6RD
4.1.e [iv] 6PE/6VPE

Let me summarize some of the key takeaways related to CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Static Routing as relevant to CCIE Routing and Switching (R&S) V5.1 written exam blueprint topics.

Exam Essentials

• ISATAP is an automatic overlay tunneling mechanism that uses the underlying IPv4 network as a NBMA link layer for IPv6
• If you configure manual tunneling, it would nail up a permanent link between IPv6 domains (over IPv4)
• v6in4 can operate in either transport or tunnel mode
• Tunnel auto mode feature eases the configuration by automatically selecting the tunneling and transport protocols

I sincerely hope that you found this article and video helpful. Please post your questions or suggestions in the comments and tell me how you are preparing for your CCIE Routing and Switching (R&S) V5.1 written and lab exams.