return null;
}
//Initialize the IP filter with Deny type
DefaultIpFilter ipFilter = new DefaultIpFilter(IpFilterType.DENY);
if(blockedSubnets != null) {
ipFilter.addAll(blockedSubnets);
}
if(blockedAddresses != null) {
for(InetAddress address:blockedAddresses) {
ipFilter.add(new Subnet(address, 32));
}