diff --git a/auto_config.sh b/auto_config.sh
index 242da7b..8e56d6b 100755
--- a/auto_config.sh
+++ b/auto_config.sh
@@ -44,6 +44,11 @@ RELOAD_PARAMATER=false
 
 ################################################################################
 
+# Source paramaters
+. $GIT_DIR/parameters.conf
+
+################################################################################
+
 # Function to request parameters
 function func_read_param() {
     # $1 => PARAM => Parameter name
@@ -157,9 +162,10 @@ EOF
 sed -i 's/.*delaycompress/#&/' /etc/logrotate.d/*
 
 # Disable IPv6
-cat << EOF > /etc/sysctl.d/98-disable-ipv6.conf
+if $DISABLE_IPv6 ; then
+    cat << EOF > /etc/sysctl.d/98-disable-ipv6.conf
 # Disable ipv6 on all connexion
 net.ipv6.conf.all.disable_ipv6 = 1
 EOF
-sysctl -p /etc/sysctl.d/98-disable-ipv6.conf
-
+    sysctl -p /etc/sysctl.d/98-disable-ipv6.conf
+fi
diff --git a/parameters.conf b/parameters.conf
new file mode 100644
index 0000000..c454233
--- /dev/null
+++ b/parameters.conf
@@ -0,0 +1,2 @@
+# Do you want disable IPv6 ?
+DISABLE_IPv6=true