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.\"     Title: shorewall-ecn
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 09/24/2020
.\"    Manual: Configuration Files
.\"    Source: Configuration Files
.\"  Language: English
.\"
.TH "SHOREWALL\-ECN" "5" "09/24/2020" "Configuration Files" "Configuration Files"
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.SH "NAME"
ecn \- Shorewall ECN file
.SH "SYNOPSIS"
.HP \w'\fB/etc/shorewall/ecn\fR\ 'u
\fB/etc/shorewall/ecn\fR
.SH "DESCRIPTION"
.PP
IPv4 only\&.
.PP
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
\m[blue]\fBshorewall\-mangle\fR\m[]\&\s-2\u[1]\d\s+2(8)\&.
.PP
The columns in the file are as follows\&.
.PP
\fBINTERFACE\fR \- \fIinterface\fR
.RS 4
Interface through which host(s) communicate with the firewall
.RE
.PP
\fBHOST(S)\fR (Optional) \- [\fB\-\fR|\fIaddress\-or\-address\-range\fR[\fB,\fR\fIaddress\-or\-address\-range\fR]\&.\&.\&.]
.RS 4
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\&.
.RE
.SH "FILES"
.PP
/etc/shorewall/ecn
.SH "SEE ALSO"
.PP
shorewall(8)
.SH "NOTES"
.IP " 1." 4
shorewall-mangle
.RS 4
\%https://shorewall.org/manpages/shorewall-mangle.html
.RE