diff --git a/utils/he_ipv6/tunnel.py b/utils/he_ipv6/tunnel.py
index 7487d83..b12a720 100644
--- a/utils/he_ipv6/tunnel.py
+++ b/utils/he_ipv6/tunnel.py
@@ -178,8 +178,8 @@ class Tunnel(object):
             _ra_xml = _assign_xml.find('ra')
             if _ra_xml is not None and self.ra_provider:
                 tag = _ra_xml.attrib.get('tag', None)
-                _dns_xml = _assign_xml.find('dns')
-                _dhcp_xml = _assign_xml.find('dhcpv6')
+                _dns_xml = _ra_xml.find('dns')
+                _dhcp_xml = _ra_xml.find('dhcpv6')
                 if _dns_xml is not None:
                     do_dns = utils.xml2bool(_dns_xml.text.strip())
                     domains = [i.strip() for i in _dns_xml.attrib.get('domains', '').split() if i.strip() != '']