Add a helper method for network_names. Also, update network_name methdo to set itself to the first network with a public ip address by default.

lib/fog/hp/models/compute_v2/server.rb

@@ -101,7 +101,12 @@ module Fog
         end
 
         def network_name
-          @network_name ||= 'hpcloud'
+          @network_name ||= get_first_network_with_public_ip
+        end
+
+        # derive the network names from the addresses hash
+        def network_names
+          self.addresses.keys unless self.addresses.nil?
         end
 
         def private_ip_address
@@ -290,6 +295,11 @@ module Fog
           @password = new_admin_pass
         end
 
+        def get_first_network_with_public_ip
+          net = self.addresses.select {|_,v| v.count > 1}
+          net.keys.first
+        end
+
       end
 
     end