diff --git a/nova/utils.py b/nova/utils.py
index 02bafc6c85bc..a13fa214c244 100644
--- a/nova/utils.py
+++ b/nova/utils.py
@@ -212,8 +212,8 @@ def get_my_ip():
 
 def  get_my_linklocal(interface):
     try:
-        if_str = execute("ifconfig %s" % interface)
-        condition = "\s+inet6\s+addr:\s+([0-9a-f:]+/\d+)\s+Scope:Link"
+        if_str = execute("ip -f inet6 -o addr show %s" % interface)
+        condition = "\s+inet6\s+([0-9a-f:]+/\d+)\s+scope:link"
         links = [re.search(condition, x) for x in if_str[0].split('\n')]
         address = [w.group(1) for w in links if w is not None]
         if address[0] is not None:
diff --git a/nova/virt/libvirt_conn.py b/nova/virt/libvirt_conn.py
index c6827edbe9a6..e5f61f9aac09 100644
--- a/nova/virt/libvirt_conn.py
+++ b/nova/virt/libvirt_conn.py
@@ -1024,7 +1024,6 @@ class NWFilterFirewall(FirewallDriver):
         security_group = db.security_group_get(context.get_admin_context(),
                                                security_group_id)
         rule_xml = ""
-        version = 4
         v6protocol = {'tcp': 'tcp-ipv6', 'udp': 'udp-ipv6', 'icmp': 'icmpv6'}
         for rule in security_group.rules:
             rule_xml += "<rule action='accept' direction='in' priority='300'>"