This patch adds the ACCOUNT target The ACCOUNT target is a high performance accounting system for local networks. It takes two parameters: --addr network/netmask and --tname NAME. --addr is the subnet which is accounted for --tname is the table name where the information is stored The data can be queried later using the libipt_ACCOUNT userspace library or by the "iptaccount" tool which is part of the libipt_ACCOUNT package. A special subnet is "0.0.0.0/0": All data is stored in the src_bytes and src_packets structure of slot "0". This is useful if you want to account the overall traffic to/from your internet provider. For more information go to http://www.intra2net.com/opensource/ipt_account