make v6ips fail more gracefully

Signed-off-by: Stephen Gran <steve@lobefin.net>

diff --git a/modules/ferm/templates/interfaces.conf.erb b/modules/ferm/templates/interfaces.conf.erb
index 18c5e9c..db39f14 100644 (file)
--- a/modules/ferm/templates/interfaces.conf.erb
+++ b/modules/ferm/templates/interfaces.conf.erb
@@ -1,5 +1,5 @@
 def $MUNIN_IPS = (<%= v4ips.split(',').join(' ') %>);
-def $MUNIN6_IPS = (<%= v6ips.split(',').join(' ') %>);
+def $MUNIN6_IPS = (<%= v6ips == 'no' ? '' : v6ips.split(',').join(' ') %>);
 
 domain ip {
         chain INPUT {