Use this file to list the destinations for which you want to disable ECN (Explicit Congestion Notification). Use of this file is deprecated in favor of ECN rules in shorewall-mangle(8).
The columns in the file are as follows.
- INTERFACE - interface
Interface through which host(s) communicate with the firewall
- HOST(S) (Optional) - [-|address-or-address-range[,address-or-address-range]...]
Comma-separated list of host and/or network addresses. If left empty or supplied as "-", 0.0.0.0/0 is assumed. If your kernel and iptables include iprange match support then IP address ranges are also permitted.