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IPV6 Summary address

Please, look at the three IPV6 addresses below.

2001:0DB8:0:0:7::/64

2001:0DB8:0:0:8::/64

2001:0DB8:0:0:9::/64

The book I am reading says the summary of the three addresses is 2001:0DB8::/48.


I thought the summary would be 2001:0DB8::/64.  If I am wrong, could you please explain how to summarize the three addresses.

Thanks.

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IPV6 Summary address

Hello Jonathan,

You can refer this document

https://supportforums.cisco.com/docs/DOC-29256

I have shown how to calculate IPv6 prefix summarization.

Hope it helps you

Regards,

Ashish Shirkar

New Member

IPV6 Summary address

Thanks Ashish.  So, I take it that both 2001:0DB8::/48 and 2001:0DB8::/64 are correct summary routes, depending on the range of addresses the summary route is expected to cover.  Correct?

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