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-rw-r--r--docs/release/installation/installation.instruction.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/docs/release/installation/installation.instruction.rst b/docs/release/installation/installation.instruction.rst
index 2ff295f..d352059 100644
--- a/docs/release/installation/installation.instruction.rst
+++ b/docs/release/installation/installation.instruction.rst
@@ -11,11 +11,13 @@ Infrastructure. All underlay networks and API endpoints will be IPv6-only
except:
1. "admin" network in underlay/undercloud still has to be IPv4.
+
* It was due to lack of support of IPMI over IPv6 or PXE over IPv6.
* iPXE does support IPv6 now. Ironic has added support for booting
nodes with IPv6.
* We are starting to work on enabling IPv6-only environment for all
networks. For TripleO, this work is still ongoing.
+
2. Metadata server is still IPv4 only.
Except the limitations above, the use case scenario of the IPv6-only