+++ /dev/null
-This module matches packets related to a specific conntrack-helper.
-.TP
-[\fB!\fP] \fB--helper\fP \fIstring\fP
-Matches packets related to the specified conntrack-helper.
-.RS
-.PP
-string can be "ftp" for packets related to a ftp-session on default port.
-For other ports append -portnr to the value, ie. "ftp-2121".
-.PP
-Same rules apply for other conntrack-helpers.
-.RE