From 975746e7d77035bf8ea25d328ae042b9b117d9ea Mon Sep 17 00:00:00 2001
From: Ruakij <ruakij@ruekov.eu>
Date: Wed, 2 Nov 2022 10:27:06 +0100
Subject: [PATCH] Add IPv6-network to common

---
 common/defaults/main.yml    |  1 +
 common/tasks/main.yml       |  2 ++
 common/tasks/networking.yml | 22 ++++++++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 common/defaults/main.yml
 create mode 100644 common/tasks/networking.yml

diff --git a/common/defaults/main.yml b/common/defaults/main.yml
new file mode 100644
index 0000000..830b9b9
--- /dev/null
+++ b/common/defaults/main.yml
@@ -0,0 +1 @@
+ipv6_stable_secret: 1111:2222:3333:4444:5555:6666:7777:8888
diff --git a/common/tasks/main.yml b/common/tasks/main.yml
index e12de46..4ecb976 100644
--- a/common/tasks/main.yml
+++ b/common/tasks/main.yml
@@ -5,3 +5,5 @@
 - import_tasks: ./packages.yml
 
 - import_tasks: ./aliases.yml
+
+- import_tasks: ./networking.yml
diff --git a/common/tasks/networking.yml b/common/tasks/networking.yml
new file mode 100644
index 0000000..85fc639
--- /dev/null
+++ b/common/tasks/networking.yml
@@ -0,0 +1,22 @@
+- name: Set sysctl settings for ip-forwarding
+  copy:
+      dest: "/etc/sysctl.d/ip-forwarding.conf"
+      content: |
+          net.ipv4.ip_forward           = 1
+          net.ipv6.conf.all.forwarding  = 1
+  notify: reload_sysctl
+
+- name: Set sysctl settings for ipv6-address-generation
+  copy:
+      dest: "/etc/sysctl.d/ipv6-slaac-address-generation.conf"
+      content: |
+          net.ipv6.conf.default.addr_gen_mode = 2
+          net.ipv6.conf.default.stable_secret = {{ ipv6_stable_secret }}
+  notify: reload_sysctl
+
+- name: Set sysctl settings to override ipv6-slaac with enabled forwarding
+  copy:
+      dest: "/etc/sysctl.d/ipv6-slaac-override.conf"
+      content: |
+          net.ipv6.conf.all.accept_ra = 2
+  notify: reload_sysctl