This module sets the netfilter mark value associated with a connection
.TP
.B --set-mark mark[/mask]
Set connection mark. If a mask is specified then only those bits set in the
mask is modified.
.TP
.B --save-mark [--mask mask]
Copy the netfilter packet mark value to the connection mark. If a mask
is specified then only those bits are copied.
.TP
.B --restore-mark [--mask mask]
Copy the connection mark value to the packet. If a mask is specified
then only those bits are copied. This is only valid in the
.B mangle
table.