| This module matches packets related to a specific conntrack-helper. | |
| .TP | |
| .BI "--helper " "string" | |
| 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 |