Coding style plus élégant.

Python/etc/arpwatch.conf

@@ -21,7 +21,5 @@ info["perms"] = 0644
 
 include("arpwatch")
 for vlan in watched_vlans:
-	iface = 'eth0'
-	if vlan <> 1:
-		iface += '.%d' % vlan
+	iface = 'eth0.%d' % vlan
 	print("%s    -m root@crans.org" % iface)

Python/etc/monit/services

@@ -118,9 +118,7 @@ if has('arpwatch'):
     # TODO modeliser ceci par un seul service pour éviter des races débiles
     # au moment des restart ...
     for vlan in watched_vlans:
-        iface = 'eth0'
-        if vlan <> 1:
-            iface += '.%d' % vlan
+        iface = 'eth0.%d' % vlan
         service(None, name='arpwatch-%s' % iface,
             init='arpwatch',
         )