libxt_state.man revision afbac0d462328d798f8612d3e793506c0a135a17 
1This module, when combined with connection tracking, allows access to
2the connection tracking state for this packet.
3.TP
4[\fB!\fP] \fB\-\-state\fP \fIstate\fP
5Where state is a comma separated list of the connection states to
6match.  Possible states are
7.B INVALID
8meaning that the packet could not be identified for some reason which
9includes running out of memory and ICMP errors which don't correspond to any
10known connection,
11.B ESTABLISHED
12meaning that the packet is associated with a connection which has seen
13packets in both directions,
14.B NEW
15meaning that the packet has started a new connection, or otherwise
16associated with a connection which has not seen packets in both
17directions, and
18.B RELATED
19meaning that the packet is starting a new connection, but is
20associated with an existing connection, such as an FTP data transfer,
21or an ICMP error.
22.B UNTRACKED
23meaning that the packet is not tracked at all, which happens if you use
24the NOTRACK target in raw table.
25