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-rw-r--r--data/templates/dhcp-server/dhcpd.conf.j24
1 files changed, 4 insertions, 0 deletions
diff --git a/data/templates/dhcp-server/dhcpd.conf.j2 b/data/templates/dhcp-server/dhcpd.conf.j2
index 4c2da0aa5..639526532 100644
--- a/data/templates/dhcp-server/dhcpd.conf.j2
+++ b/data/templates/dhcp-server/dhcpd.conf.j2
@@ -22,6 +22,7 @@ ddns-update-style {{ 'interim' if dynamic_dns_update is vyos_defined else 'none'
option rfc3442-static-route code 121 = array of integer 8;
option windows-static-route code 249 = array of integer 8;
option wpad-url code 252 = text;
+option rfc8925-ipv6-only-preferred code 108 = unsigned integer 32;
# Vendor specific options - Ubiquiti Networks
option space ubnt;
@@ -127,6 +128,9 @@ shared-network {{ network }} {
{% if subnet_config.wins_server is vyos_defined %}
option netbios-name-servers {{ subnet_config.wins_server | join(', ') }};
{% endif %}
+{% if subnet_config.ipv6_only_preferred is vyos_defined %}
+ option rfc8925-ipv6-only-preferred {{ subnet_config.ipv6_only_preferred }};
+{% endif %}
{% if subnet_config.static_route is vyos_defined %}
{% set static_default_route = '' %}
{% if subnet_config.default_router is vyos_defined %}