| 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 |