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Revise IPv6 networking documentation #24004
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Updated the IPv6 documentation with a warning about using reserved prefixes.
@rajdeepcoder10
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January 21, 2026 20:22
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Issue affects Docker engine/daemon
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dvdksn
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Jan 22, 2026
@@ -1,4 +1,4 @@
---
<imgwidth="551"height="460"alt="image"src="https://github.com/user-attachments/assets/2273bb84-8412-41f4-a7e0-bb2feb2505f4" />---
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?
```console
$ docker network create --ipv6 --subnet 2001:db8::/64 ip6net
```
> ⚠️ **Note:** The IPv6 prefix `2001:db8::/64` is reserved for documentation and examples only.
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Suggested change
> ⚠️ **Note:** The IPv6 prefix `2001:db8::/64` is reserved for documentation and examples only.
> [!NOTE]
> The IPv6 prefix `2001:db8::/64` is reserved for documentation and examples only.
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This pull request improves the IPv6 networking documentation by adding a clear warning that the IPv6 prefix
2001:db8::/64is reserved strictly for documentation and example purposes.The update helps prevent users from mistakenly using reserved IPv6 ranges in real-world environments, which could lead to misconfiguration or unexpected network behavior. It also guides users to replace the example prefix with a valid IPv6 subnet allocated to their network.
This change enhances clarity, accuracy, and usability of the documentation for developers and system administrators.
Related issues or tickets
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