[PATCH pve-docs 1/2] sdn: add subnet ipv6 options section

Hannes Laimer
2026-02-18T10:23:48Z

pvesdn.adoc | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/pvesdn.adoc b/pvesdn.adoc
index d20a0eb..267ce97 100644
--- a/pvesdn.adoc
+++ b/pvesdn.adoc
@@ -437,6 +437,34 @@ SNAT:: Enable Source NAT which allows VMs from inside a
DNS Zone Prefix:: Add a prefix to the domain registration, like
<hostname>.prefix.<domain> Optional.

+[[pvesdn_config_subnet_ipv6]]
+IPv6 subnet options (EVPN)
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+For VNets in an EVPN zone, subnets can optionally configure IPv6 Router
+Advertisement (RA) and related Neighbor Discovery options.
+
+These options are available in the subnet editor under `IPv6 Options`.
+
+Enable RA:: Enable IPv6 Router Advertisements for this subnet.
+
+RDNSS:: Recursive DNS Server advertised via RA.
+
+DHCP Managed (M):: Set the managed-address configuration flag in RA.
+
+DHCP Other (O):: Set the other-configuration flag in RA.
+
+SLAAC (A):: Enable autonomous address configuration for the prefix.
+
+Valid Prefix Lifetime:: Valid lifetime advertised for the prefix in seconds.
+
+Preferred Prefix Lifetime:: Preferred lifetime advertised for the prefix in
+ seconds.
+
+NOTE: `SLAAC` footnote:[RFC-7217 https://datatracker.ietf.org/doc/html/rfc7217]
+is only possible on `/64` prefixes. Router Advertisements have to be enabled for
+SLAAC to work.
+

[[pvesdn_config_controllers]]
Controllers
--
2.47.3