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Unable to access an Instance through IPv6

Received Response
edited Jul 20, 2021 6:49PM in Oracle Cloud Infrastructure - General 7 comments


I have got an default Ubuntu instance on the A1.flex flavour which I want to access from outside through IPv6.

I already did the following:

  • Added an IPv6 CIDR Block
  • Added an v6 address to the VNIC of the instance
  • Changed the default routing table for the VCN to enable ::/0 traffic to the internet gateway
  • Changed the outgoing security list to enable all v6 traffic
  • Added an rule to allow ICMP incoming traffic from ::/0

Still I'm not able to ping the instance. Accessing stuff on the internet from the instance itself works fine (so e.g. I can do "ping -6"). Accessing the instance from outside via the IPv4 address also works fine. Did I forget to do something on the instance itself or do I need to configure something else on the OCI console?

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