From 0b31e8678e5817950a0aba37d5930601cb4a1d24 Mon Sep 17 00:00:00 2001
From: Dean Troyer <dtroyer@gmail.com>
Date: Wed, 7 Mar 2012 16:47:56 -0600
Subject: [PATCH] Ensure that ip_forwarding is always enabled for compute and
 network

Libvirt gets this in most cases, but it can be disabled.  This is
belts + suspenders + super glue...

Fixes bug 885274

Change-Id: Ifb8d627689800b23cce02a623caa525cd17e507d
---
 stack.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stack.sh b/stack.sh
index eead8a199f..b67bf16ecf 100755
--- a/stack.sh
+++ b/stack.sh
@@ -886,6 +886,9 @@ if is_service_enabled n-cpu; then
     # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     apt_get install libvirt-bin
 
+    # Force IP forwarding on, just on case
+    sudo sysctl -w net.ipv4.ip_forward=1
+
     # attempt to load modules: network block device - used to manage qcow images
     sudo modprobe nbd || true
 
@@ -967,6 +970,9 @@ if is_service_enabled n-net; then
     clean_iptables
     rm -rf $NOVA_DIR/networks
     mkdir -p $NOVA_DIR/networks
+
+    # Force IP forwarding on, just on case
+    sudo sysctl -w net.ipv4.ip_forward=1
 fi
 
 # Storage Service