| This module, when combined with connection tracking, allows access to |
| the connection tracking state for this packet. |
| .TP |
| .BI "--state " "state" |
| Where state is a comma separated list of the connection states to |
| match. Possible states are |
| .B INVALID |
| meaning that the packet could not be identified for some reason which |
| includes running out of memory and ICMP errors which don't correspond to any |
| known connection, |
| .B ESTABLISHED |
| meaning that the packet is associated with a connection which has seen |
| packets in both directions, |
| .B NEW |
| meaning that the packet has started a new connection, or otherwise |
| associated with a connection which has not seen packets in both |
| directions, and |
| .B RELATED |
| meaning that the packet is starting a new connection, but is |
| associated with an existing connection, such as an FTP data transfer, |
| or an ICMP error. |
