2 ''' $RCSfile: ethereal.1,v $$Revision: 1.4 $$Date: 1998/10/13 02:10:53 $
4 ''' $Log: ethereal.1,v $
5 ''' Revision 1.4 1998/10/13 02:10:53 gerald
7 ''' * Minor tweaks to the filter prefs
24 .ie \\n(.$>=3 .ne \\$3
40 ''' Set up \*(-- to give an unbreakable dash;
41 ''' string Tr holds user defined translation string.
42 ''' Bell System Logo is used as a dummy character.
48 .if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
49 .if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
52 ''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of
53 ''' \*(L" and \*(R", except that they are used on ".xx" lines,
54 ''' such as .IP and .SH, which do another additional levels of
55 ''' double-quote interpretation
84 .\" If the F register is turned on, we'll generate
85 .\" index entries out stderr for the following things:
90 .\" X<> Xref (embedded
91 .\" Of course, you have to process the output yourself
92 .\" in some meaninful fashion.
95 .tm Index:\\$1\t\\n%\t"\\$2"
100 .TH ETHEREAL 1 "0.4.0" "12/Oct/98" "The Ethereal Network Analyzer"
104 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
105 .de CQ \" put $1 in typewriter font
111 \\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7
114 .\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
115 . \" AM - accent mark definitions
117 . \" fudge factors for nroff and troff
126 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
132 . \" simple accents for nroff and troff
145 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
146 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
147 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
148 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
149 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
150 . ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10'
151 . ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m'
152 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
153 . ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10'
155 . \" troff and (daisy-wheel) nroff accents
156 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
157 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
158 .ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#]
159 .ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u'
160 .ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u'
161 .ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#]
162 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
163 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
164 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
165 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
166 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
167 .ds ae a\h'-(\w'a'u*4/10)'e
168 .ds Ae A\h'-(\w'A'u*4/10)'E
169 .ds oe o\h'-(\w'o'u*4/10)'e
170 .ds Oe O\h'-(\w'O'u*4/10)'E
171 . \" corrections for vroff
172 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
173 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
174 . \" for low resolution devices (crt and lpr)
175 .if \n(.H>23 .if \n(.V>19 \
179 . ds v \h'-1'\o'\(aa\(ga'
195 Ethereal \- Interactively browse network traffic
198 [\ \fB\-B\fR\ byte\ view\ height\ ]
199 [\ \fB\-b\fR\ bold\ font\ ]
200 [\ \fB\-c\fR\ count\ ]
202 [\ \fB\-i\fR\ interface\ ]
203 [\ \fB\-m\fR\ font\ ]
205 [\ \fB\-P\fR\ packet\ list\ height\ ]
206 [\ \fB\-r\fR\ infile\ ]
207 [\ \fB\-s\fR\ snaplen\ ]
208 [\ \fB\-T\fR\ tree\ view\ height\ ]
209 [\ \fB\-t\fR\ time\ stamp\ format\ ]
211 [\ \fB\-w\fR\ savefile]
213 \fBEthereal\fR is a network protocol analyzer based on the \fBGTK+\fR GUI toolkit. It lets
214 you interactively browse packet data from a live network or from a \fBpcap\fR
215 / \fBtcpdump()\fR formatted capture file.
218 Sets the initial height of the byte view (bottom) pane
220 The bold font name used for packet fied display.
222 The default number of packets to read when capturing live data.
224 Prints the version and options and exits.
226 The name of the interface to use for live packet capture. It should match
227 one of the names listed in \*(L"\fBnetstat \-i\fR\*(R" or \*(L"\fBifconfig \-a\fR\*(R".
229 The font name used by \fBEthereal\fR.
231 Disable network object name resolution (such as hostname, \s-1TCP\s0 and \s-1UDP\s0 port
234 Sets the initial height of the packet list (top) pane
236 Read packet data from \fIfile\fR. Currently, \fBEthereal\fR only understands
237 \fBpcap\fR / \fBtcpdump\fR formatted files.
239 The default snapshot length to use when capturing live data. No more than
240 \fIsnaplen\fR bytes of each network packet will be read into memory, or saved
243 Sets the initial height of the tree view (top) pane
245 Sets the format of the packet timestamp displayed in the packet list
248 Prints the version and exits.
250 Sets the default capture file name.
252 .Sh "\s-1MENU\s0 \s-1ITEMS\s0"
253 .Ip "File:Open, File:Close, File:Reload" 4
254 Open, close, or reload a capture file.
255 .Ip "File:Print Packet" 4
256 Print a description of each protocol header found in the packet, followed
257 by the packet data itself. Printing options can be set with the
258 \fIEdit:Menu Options\fR menu item.
260 Exits the application.
261 .Ip "Edit:Preferences" 4
262 Sets the packet printing and filter options (see the section on \fIPreferences\fR below).
263 .Ip "Tools:Capture" 4
264 Initiates a live packet capture (see the section on \fICapture Preferences\fR below).
265 .Ip "Tools:Follow \s-1TCP\s0 Stream" 4
266 If you have a \s-1TCP\s0 packet selected, it will display the contents of the \s-1TCP\s0
267 data stream in a separate window.
270 The main window is split into three panes. You can resize each pane using
271 a \*(L"thumb\*(R" at the right end of each divider line. Below the panes is a
272 strip that shows the file load progress, current filter, and informational
275 The top pane contains the list of network packets that you can scroll
276 through and select. The packet number, packet timestamp, source and
277 destination addresses, protocol, and description are printed for each
278 packet. An effort is made to display information as high up the protocol
279 stack as possible, e.g. \s-1IP\s0 addresses are displayed for \s-1IP\s0 packets, but the
280 \s-1MAC\s0 layer address is displayed for unknown packet types.
282 The middle pane contains a \fIprotocol tree\fR for the currently-selected
283 packet. The tree displays each field and its value in each protocol header
286 The lowest pane contains a hex dump of the actual packet data.
287 Selecting a field in the \fIprotocol tree\fR highlights the corresponding
288 bytes in this section.
290 A display filter can be entered into the strip at the bottom. It must
291 have the same format as \fBtcpdump\fR filter strings, since both programs use
292 the same underlying library. A filter for \s-1HTTP\s0, \s-1HTTPS\s0, and \s-1DNS\s0 traffic
293 might look like this:
296 \& tcp port 80 or tcp port 443 or port 53
298 Selecting the \fIFilter:\fR button lets you choose from a list of named
299 filters that you can optionally save.
301 The \fIPreferences\fR dialog lets you select the output format of packets
302 printed using the \fIFile:Print Packet\fR menu item and configure
303 commonly-used filters.
304 .Ip "Printing Preferences" 10
305 The radio buttons at the top of the \fIPrinting\fR page allow you choose
306 between printing the packets as text or PostScript, and sending the
307 output directly to a command or saving it to a file. The \fICommand:\fR text
308 entry box is the command to send files to (usually \fBlpr\fR), and the
309 \fIFile:\fR entry box lets you enter the name of the file you wish to save
310 to. Additinally, you can select the \fIFile:\fR button to browse the file
311 system for a particular save file.
313 The \fIFilters\fR page lets you create and modify filters, and set the
314 default filter to use when capturing data or opening a capture file.
316 The \fIFilter name\fR entry specifies a descriptive name for a filter, e.g.
317 \fBWeb and \s-1DNS\s0 traffic\fR. The \fIFilter string\fR entry is the text that
318 actually describes the filtering action to take, as described above.The
319 dialog buttons perform the following actions:
321 If there is text in the two entry boxes, it creates a new associated list
324 Modifies the currently selected list item to match what's in the entry
327 Makes a copy of the currently selected list item.
329 Deletes the currently selected list item.
331 Sets the currently selected list item as the active filter. If nothing
332 is selected, turns filtering off.
334 Saves the current filter list in \fI$\s-1HOME\s0/.ethereal/filters\fR.
336 Closes the dialog without making any changes.
337 .Ip "Capture Preferences" 4
338 The \fICapture Preferences\fR dialog lets you specify various parameters for
339 capturing live packet data.
341 The \fIInterface:\fR entry box lets you specify the interface from which to
342 capture packet data. The \fICount:\fR entry specifies the number of packets
343 to capture. Entering 0 will capture packets indefinitely. The \fIFilter:\fR
344 entry lets you specify the capture filter using a tcpdump-style filter
345 string as described above. The \fIFile:\fR entry specifies the file to save
346 to, as in the \fIPrinter Options\fR dialog above. You can choose to open the
347 file after capture, and you can also specify the maximum number of bytes
348 to capture per packet with the \fICapture length\fR entry.
350 the \fItcpdump(1)\fR manpage, the \fIpcap(3)\fR manpage
352 The latest version of \fBethereal\fR can be found at
353 \fBhttp://ethereal.zing.org\fR.
359 \& Gerald Combs <gerald@zing.org>
364 \& Gilbert Ramirez Jr. <gram@verdict.uthscsa.edu>
365 \& Hannes R. Boehm <hannes@boehm.org>
366 \& Mike Hall <mlh@io.com>
367 \& Bobo Rajec <bobo@bsp-consulting.sk>
368 \& Laurent Deniel <deniel@worldnet.fr>
369 \& Don Lafontaine <lafont02@cn.ca>
371 Alain Magloire <alainm@rcsm.ece.mcgill.ca> was kind enough to give his
372 permission to use his version of snprintf.c.
374 Dan Lasley <dlasley@promus.com> gave permission for his \fIdumpit()\fR hex-dump
378 .IX Title "ETHEREAL 1"
379 .IX Name "Ethereal - Interactively browse network traffic"
383 .IX Header "SYNOPSYS"
385 .IX Header "DESCRIPTION"
417 .IX Header "INTERFACE"
419 .IX Subsection "\s-1MENU\s0 \s-1ITEMS\s0"
421 .IX Item "File:Open, File:Close, File:Reload"
423 .IX Item "File:Print Packet"
427 .IX Item "Edit:Preferences"
429 .IX Item "Tools:Capture"
431 .IX Item "Tools:Follow \s-1TCP\s0 Stream"
433 .IX Subsection "\s-1WINDOWS\s0"
435 .IX Item "Main Window"
437 .IX Item "Preferences"
439 .IX Item "Printing Preferences"
457 .IX Item "Capture Preferences"
459 .IX Header "SEE ALSO"