diff --git a/utils/he_ipv6/tpl/dnsmasq.include.j2 b/utils/he_ipv6/tpl/dnsmasq.include.j2
index cd7677a..6e311d5 100644
--- a/utils/he_ipv6/tpl/dnsmasq.include.j2
+++ b/utils/he_ipv6/tpl/dnsmasq.include.j2
@@ -36,7 +36,7 @@ ra-param = {{ assignment.iface }}, mtu:{{ common_opts.mtu }}, high, {{ common_op
 dhcp-range = {{ id_set }}, {{ assignment.dhcp6_ranges[assign_loop.index0]|join(', ') }}, {{ ra_opts|join(', ') }}, {{ common_opts.lease_life }}
 		{%- endfor %}
 	{%- else %}
-dhcp-range = {{ id_set }}, ::, constructor={{ assignment.iface }}, {{ ra_opts|join(', ') }}, {{ common_opts.lease_life }}{#- TODO: check this. #}
+dhcp-range = {{ id_set }}, [::], constructor={{ assignment.iface }}, {{ ra_opts|join(', ') }}, {{ common_opts.lease_life }}{#- TODO: check this. #}
 	{%- endif %}
 dhcp-option = {{ identifier }}, option6:information-refresh-time, {{ common_opts.opts_life }}
 	{%- if assignment.ra_dns %}
diff --git a/utils/he_ipv6/tunnel.py b/utils/he_ipv6/tunnel.py
index 19da60d..014ae97 100644
--- a/utils/he_ipv6/tunnel.py
+++ b/utils/he_ipv6/tunnel.py
@@ -68,12 +68,17 @@ class Assignment(object):
         self.ra_dns = ra_dns
         self.ra_tag = ra_tag
         self.ra_other = ra_other
+        self.ra_dhcp = ra_dhcp
+        for a in ('dns', 'tag', 'other', 'dhcp'):
+            k = 'ra_{0}'.format(a)
+            v = getattr(self, k)
+            logger.debug('{0}: {1}'.format(k, v))
         self.ra_domains = set()
         if isinstance(ra_domains, list):
             self.ra_domains.update(ra_domains)
         elif isinstance(ra_domains, str):
             self.ra_domains.update([i.lower().strip() for i in ra_domains if i.strip() != ''])
-        self.ra_dhcp = ra_dhcp
+        logger.debug('ra_domains: {0}'.format(', '.join(self.ra_domains)))
         self.iface = None
         self.iface_ll = None
         self.iface_idx = None
@@ -122,8 +127,8 @@ class Assignment(object):
 
     def parse_alloc(self):
         self.alloc_block = self.alloc.ip.alloc_block
-        # NOT AN IP6 OBJECT!
         self.iface_blocks = self.alloc_block.extract_subnet(self.prefix, count = 1)
+        logger.debug('Allocation blocks for {0}: {1}'.format(self.iface, ','.join(self.iface_blocks)))
         for i in self.iface_blocks:
             # DHCPv6 range.
             _base = str(i.ip).rstrip(':')