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Tuesday, March 15th, 2022 3:57 PM

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Changing IPv6 Prefix from /64 to /60

I would like to get a /60 delegation for my residential service.  I have tried to switch my request from /64 to /60 but it fails to pull an address when I do that.

Does Comcast allow /60 prefixes still?

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3 years ago

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EG

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3 years ago

They stopped that quite awhile ago.

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CCKimberly1

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3 years ago

Thank you for reaching out!

Will you please send our team a direct message with your full name and full address?

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EG

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110.8K Messages

@XfinityKimberlyB​ 

Please let me know if it is available once again, Kimberly. I don't like telling readers things that are not true !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

3 years ago

XfinityThomasD

Official Employee

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1.3K Messages

3 years ago

I appreciate your time spent with us again and apologize that we were not able to accommodate the request for your prefix. If you ever have any questions, please feel free to create another post in the future!

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EG

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110.8K Messages

@XfinityThomasD​ 

You are not @XfinityKimberlyB but thanks for posting that info !

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

3 years ago

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user_f5bca3

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@XfinityThomasD​ Thanks for the response.  I much appreciate being able to speak to someone on this.


Please node though that in only providing /64 subnets, Comcast is in violation of RFC 6177 (https://datatracker.ietf.org/doc/html/rfc6177) regarding the doling out of IPv6 address blocks.  Since there are more IPv6 addresses than there are atoms on the surface of planet earth, I think Comcast should be able to spare a few more than a single /64 for power users.

(edited)

3 years ago

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