void dhcpv6_enum_ia_addrs(struct interface *iface, struct dhcpv6_assignment *c, time_t now,
dhcpv6_binding_cb_handler_t func, void *arg);
void dhcpv6_write_statefile(void);
-void dhcpv6_ia_preupdate(struct interface *iface);
-void dhcpv6_ia_postupdate(struct interface *iface);