diff --git a/munin/iptables_ b/munin/iptables_
index 42aafb5e..e0fcf999 100755
--- a/munin/iptables_
+++ b/munin/iptables_
@@ -26,19 +26,19 @@ if arg == "config" :
     print 'graph_category network'
     print "graph_vlabel nb de regles"
     for chain in CHAINS :
-        nom = string.lower(chain.replace('_', '').replace('-', ''))
-        label = chain.replace('_', '-')
+        nom = string.lower(chain.replace('_', '').replace('-', '').replace('.','').replace('/', ''))
+        label = chain.replace('_', '-').replace('.','-').replace('/','-')
         print "%s.label %s" % (nom, label)
         if CHAINS.index(chain) == 0 :
             print "%s.draw AREA" % nom
         else :
             print "%s.draw STACK" % nom
         if label == "TEST-MAC-IP" :
-            print "%s.warning 100:" % nom
-            print "%s.critical 1:" % nom
+            print "%s.warning 100:2000" % nom
+            print "%s.critical 1:3000" % nom
 
 else :
     for chain in CHAINS :
-        nom = string.lower(chain.replace('_', '').replace('-', ''))
+        nom = string.lower(chain.replace('_', '').replace('-', '').replace('.','').replace('/', ''))
         value = int(commands.getoutput('%s %s | wc -l' % (IPTABLES, chain))) - 2
         print "%s.value %d" % (nom, value)