int srcPortEnd = lb.getSourcePortEnd();
long sourceIpId = lb.getSourceIpAddressId();
IPAddressVO ipAddr = _ipAddressDao.findById(sourceIpId);
// make sure ip address exists
if (ipAddr == null || !ipAddr.readyToUse()) {
InvalidParameterValueException ex = new InvalidParameterValueException("Unable to create load balancer rule, invalid IP address id specified");
ex.addProxyObject(ipAddr, sourceIpId, "sourceIpId");
throw ex;
} else if (ipAddr.isOneToOneNat()) {
InvalidParameterValueException ex = new InvalidParameterValueException("Unable to create load balancer rule; specified sourceip id has static nat enabled");