first-run cache issue

utils/he_ipv6/config.py

@@ -266,7 +266,9 @@ class HETunnelConfig(HEBaseConfig):
         self.my_ip = None  # Client IPv4 (not necessary; we locally cache Tunnel.my_ip)
         self.allocations = {}  # keys are 64 and 48
         self.rdns = []  # Also not necessary, but it's in the XML so why not.
-        self.tun_xml = self.xml.find('tunnel')  # Will only return a single <tunnel> for this URL.
+        # Will only return a single <tunnel> for this URL.
+        # TODO: I can probably consolidate all this into HECond instead?
+        self.tun_xml = self.xml.find('tunnel')
         self.parse()
 
     def _alloc(self):

utils/he_ipv6/tunnelbroker.py

@@ -63,7 +63,7 @@ class TunnelBroker(object):
             ipr.close()
             logger.debug('Set my_ip to {0}.'.format(self.my_ip.str))
         chk_tuple = (datetime.datetime.utcnow(), self.my_ip)
-        if self.my_ip.str != self.cached_ips[-1][1].str:
+        if len(self.cached_ips) >= 1 and self.my_ip.str != self.cached_ips[-1][1].str:
             self.needs_update = True
         if self.needs_update:
             self.cached_ips.append(chk_tuple)