Revert 524d62e changes on gateway role

4 files changed, 5 insertions, 73 deletions

diff --git a/roles/gateway/README.md b/roles/gateway/README.md
index d57ce6ff..cfbe49d3 100644
--- a/roles/gateway/README.md
+++ b/roles/gateway/README.md
@@ -23,28 +23,17 @@ IPv6 gateway is enabled by setting both `network_ipv6_address` and `gateway_loca
 
 ```yaml
 network_ipv6_address: "2a02:xxxx:xxxx:xxxx::254/64"   # Pi's IPv6 address
-gateway_local_ipv6_subnet: "2a02:xxxx:xxxx:xxxx::/64" # LAN IPv6 subnet (advertised via radvd)
+gateway_local_ipv6_subnet: "2a02:xxxx:xxxx:xxxx::/64" # LAN IPv6 subnet
 ```
 
-When `network_ipv6_address` is defined, the role:
-- Enables IPv6 forwarding (`net.ipv6.conf.all.forwarding=1`)
-- Sets `accept_ra=2` on `gateway_router_interface` so Pi keeps receiving RAs from the router while forwarding
-- Configures and starts `radvd` — Pi sends Router Advertisements to the LAN advertising itself as the IPv6 default gateway with `AdvDefaultPreference high`
-- Announces Pi-hole (Pi's IPv6) as RDNSS so all devices use it for DNS over IPv6
-
-This mirrors the IPv4 setup: all LAN devices (including phones) auto-configure Pi as their IPv6 gateway via SLAAC. No static configuration needed on clients.
-
-To disable IPv6 entirely, remove `network_ipv6_address` and `gateway_local_ipv6_subnet` from `host_vars`. The role will:
-- Omit `accept_ra` sysctl
-- Skip IPv6 iptables masquerade rules
-- Stop and disable radvd, remove its config
+To disable IPv6 entirely, remove both variables from `host_vars`. The role will:
+- Omit `accept_ra` sysctl (no IPv6 interface key written)
+- Skip IPv6 iptables masquerade rules (`gateway_local_ipv6_subnet` defaults to `""`)
 - Leave `net.ipv6.conf.all.forwarding=0`
 
 **Note:** `accept_ra` is set per-interface (`gateway_router_interface`) only when IPv6 is enabled.
 This prevents rogue RA acceptance on WireGuard and LAN interfaces.
 
-**FritzBox:** Set RA priority to **Low** (Home Network → Network → IPv6 → Router advertisement → priority) so Pi's `high` priority RA wins. Pi becomes the sole IPv6 default gateway for all LAN devices.
-
 ## Network Architecture
 
 ```txt
@@ -81,7 +70,7 @@ Client Devices (192.168.1.0/24)
 ## Requirements
 
 - **WireGuard Interfaces**: Must follow `wg*` naming pattern (`wg0`, `wg-us1`, etc.)
-- **Client Configuration**: IPv4 devices use Pi as gateway via Pi-hole DHCP; IPv6 devices auto-configure via radvd RAs
+- **Client Configuration**: Devices must use Pi as default gateway (192.168.1.254)
 - **IP Forwarding**: Kernel IP forwarding must be enabled (`net.ipv4.ip_forward=1`)
 - **WireGuard Config**: Use default routing (`Table=auto` or unset, NOT `Table=off`)
 
diff --git a/roles/gateway/handlers/main.yml b/roles/gateway/handlers/main.yml
index 2220f965..35cc489c 100644
--- a/roles/gateway/handlers/main.yml
+++ b/roles/gateway/handlers/main.yml
@@ -15,9 +15,3 @@
   ansible.builtin.command:
     cmd: "udevadm control --reload-rules"
   changed_when: false
-
-- name: "Restart radvd"
-  become: true
-  ansible.builtin.systemd_service:
-    name: "radvd.service"
-    state: "restarted"
diff --git a/roles/gateway/tasks/main.yml b/roles/gateway/tasks/main.yml
index 6684bb9a..661630f7 100644
--- a/roles/gateway/tasks/main.yml
+++ b/roles/gateway/tasks/main.yml
@@ -6,7 +6,6 @@
       - "iptables"
       - "iproute2"
       - "udev"
-      - "radvd"
     state: "present"
 
 - name: "Configure IP forwarding"
@@ -68,38 +67,3 @@
     name: "gateway-init.service"
     enabled: "{{ gateway_enabled }}"
     daemon_reload: true
-
-- name: "Configure radvd for IPv6 gateway"
-  become: true
-  when: network_ipv6_address is defined
-  block:
-    - name: "Configure radvd"
-      ansible.builtin.template:
-        src: "radvd.conf.j2"
-        dest: "/etc/radvd.conf"
-        owner: "root"
-        group: "root"
-        mode: "0644"
-      notify: "Restart radvd"
-
-    - name: "Enable radvd service"
-      ansible.builtin.systemd_service:
-        name: "radvd.service"
-        enabled: true
-        state: "started"
-        daemon_reload: true
-
-- name: "Disable radvd (no IPv6)"
-  become: true
-  when: network_ipv6_address is not defined
-  block:
-    - name: "Disable radvd service"
-      ansible.builtin.systemd_service:
-        name: "radvd.service"
-        enabled: false
-        state: "stopped"
-
-    - name: "Remove radvd config"
-      ansible.builtin.file:
-        path: "/etc/radvd.conf"
-        state: "absent"
diff --git a/roles/gateway/templates/radvd.conf.j2 b/roles/gateway/templates/radvd.conf.j2
deleted file mode 100644
index 9aac075d..00000000
--- a/roles/gateway/templates/radvd.conf.j2
+++ /dev/null
@@ -1,15 +0,0 @@
-interface {{ gateway_router_interface }} {
-    AdvSendAdvert on;
-    AdvManagedFlag off;
-    AdvOtherConfigFlag on;
-    AdvDefaultPreference high;
-
-    prefix {{ gateway_local_ipv6_subnet }} {
-        AdvOnLink on;
-        AdvAutonomous on;
-        AdvRouterAddr on;
-    };
-
-    RDNSS {{ network_ipv6_address.split('/')[0] }} {
-    };
-};