ignore bogus default gateway when a shared network is secondary the default gateway gets overwritten by a bogus one dnsmasq does the right thing and replaces it with its own default which is not good for us so check for '0.0.0.0'

Author: DaanHoogland

systemvm/patches/debian/config/opt/cloud/bin/cs/CsDhcp.py

@@ -89,9 +89,10 @@ def configure_server(self):
                 gateway = gn.get_gateway()
             else:
                 gateway = i['gateway']
-            sline = "dhcp-option=tag:interface-%s-%s,3," % (device, idx)
-            line = "dhcp-option=tag:interface-%s-%s,3,%s" % (device, idx, gateway)
-            self.conf.search(sline, line)
+            if gateway != '0.0.0.0':
+                sline = "dhcp-option=tag:interface-%s-%s,3," % (device, idx)
+                line = "dhcp-option=tag:interface-%s-%s,3,%s" % (device, idx, gateway)
+                self.conf.search(sline, line)
             # Netmask
             netmask = ''
             if self.config.is_vpc():