117 	struct subnet *subnet;  member
181 	struct subnet *subnet;  member
228 struct subnet {  struct
229 	struct subnet *next_subnet;  argument
230 	struct subnet *next_sibling;  argument
231 	struct shared_network *shared_network;
232 	struct interface_info *interface;
233 	struct iaddr interface_address;
234 	struct iaddr net;
235 	struct iaddr netmask;
237 	struct group *group;