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.IX Title "WELF2DLF.IN 1"
.TH WELF2DLF.IN 1 2024-07-12 "Lire 2.1.1" "LogReport's Lire Documentation"
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.SH NAME
welf2dlf \- convert firewall logs in WebTrends Enhanced Log Format to DLF
.SH SYNOPSIS
.IX Header "SYNOPSIS"
\&\fBwelf2dlf\fR \fIfile\fR
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBwelf2dlf\fR converts firewall logs in the WebTrends Enhanced Log
Format into the firewall DLF.
.PP
That format is defined at the following URL:
http://www.netiq.com/partners/technology/welf.asp
.PP
This converter also supports the SonicWall extensions.
.PP
A list of firewall products that supports that format can be found
at the following URL:
http://www.netiq.com/products/fwr/compatible.asp
.SH "IMPLEMENTATION NOTES"
.IX Header "IMPLEMENTATION NOTES"
Since the firewall DLF only supports packet filters, not all records
will be mapped to DLF.
.PP
Dropped packets messages (those with a field msg="XXX packet dropped")
will be mapped to denied DLF packet. (As well as all msg="TCP
connection dropped" records). Those packets will have a length of 0
(that's a limitation of the format which don't log that information on
dropped packet).
.PP
Messages with a proto= field set will be interpretted as "permitted"
"packet". That's not exactly "right" because this message really
represent a "packets flow" and not a single packet.
.PP
Other records will be ignored.
.PP
You may use the welf_proxy service in the proxy superservice to
extract proxy level information from WELF logs.
.SH EXAMPLES
.IX Header "EXAMPLES"
To process a log as produced by WebTrends:
.PP
.Vb 1
\& $ welf2dlf < welf.log
.Ve
.PP
welf2dlf will be rarely used on its own, but is more likely called
by lr_log2report:
.PP
.Vb 1
\& $ lr_log2report welf < /var/log/welf.log
.Ve
.SH THANKS
.IX Header "THANKS"
Mark D. Nagel, for giving feedback and supplying patches.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBLire::WELF\fR\|(3) \fBwelf_proxy2dlf\fR\|(1)
.SH AUTHORS
.IX Header "AUTHORS"
Francis J. Lacoste <flacoste@logreport.org>
.SH VERSION
.IX Header "VERSION"
\&\f(CW$Id:\fR welf2dlf.in,v 1.14 2006/07/23 13:16:35 vanbaal Exp $
.SH COPYRIGHT
.IX Header "COPYRIGHT"
Copyright (C) 2001 Stichting LogReport Foundation LogReport@LogReport.org
.PP
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
.PP
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
.PP
You should have received a copy of the GNU General Public License
along with this program (see COPYING); if not, check with
http://www.gnu.org/copyleft/gpl.html.