diff --git a/frontend/public/openapi.json b/frontend/public/openapi.json
index cbfb73d07..6bf214ddd 100644
--- a/frontend/public/openapi.json
+++ b/frontend/public/openapi.json
@@ -2822,6 +2822,7 @@
             "type": "string"
           },
           "ipv6Enabled": {
+            "description": "IPv6Enabled turns on native IPv6 for clients: an IPv6 host address is\nallocated from IPv6Subnet alongside each client's IPv4 one, and the\nserver proxies NDP for each enabled client's address so upstream\nrouters see it as directly reachable (no NAT66). IPv6ExternalInterface\noverrides ExternalInterface for the NDP-proxy PostUp/PostDown entries\nspecifically; empty reuses ExternalInterface.",
             "type": "boolean"
           },
           "ipv6ExternalInterface": {
diff --git a/frontend/src/lib/xray/inbound-defaults.ts b/frontend/src/lib/xray/inbound-defaults.ts
index b0bf915a1..0c5fabc0b 100644
--- a/frontend/src/lib/xray/inbound-defaults.ts
+++ b/frontend/src/lib/xray/inbound-defaults.ts
@@ -295,6 +295,9 @@ export function createDefaultAmneziawgInboundSettings(): AmneziawgInboundSetting
       primaryDns: '8.8.8.8',
       secondaryDns: '8.8.4.4',
       externalInterface: '',
+      ipv6Enabled: false,
+      ipv6Subnet: '',
+      ipv6ExternalInterface: '',
       jc: 5,
       jmin: 10,
       jmax: 50,