}
if (getGUI().getConfig().getProperty("enableeverynetworks") != null &&
getGUI().getConfig().getProperty("enableeverynetworks").equals("true")) {
subnet = (TargetIPv4Subnet) getGUI().getCanonicalInstance(subnet);
session.saveOrUpdate(subnet);
if (!getGUI().getVisualTransientNetworks().contains(subnet)) {
session.update(getGUI().getVisualTransientNetworks());
subnet.setParent(getGUI(), getGUI().getVisualTransientNetworks());
}
if (!subnet.contains(target_ipv4)) target_ipv4.setParent(getGUI(), subnet);