[bill parducci <bill@xxxxxxxxxxxx>]

from the dialog that pops up when you select catpture-->start you should
be able to type

port 80

into the filter field, click ok and have it limit captures to port 80 on
that interface.

b


Gary Taylor wrote:
> 
> Hello,
> 
> I know this has been asked numerous times, but I am trying to get a
> capture filter working and can't figure out what part I'm doing wrong.  I want
> to capture all traffic going to/from 149.82.78.64 and my local box for now,
> just to get anything working.  I've tried various combinations (listed below)
> and I keep getting the message: "Unable to parse filter string"
> 
> I even tried the exact tcpdump example just to see if the filter would save and
> I still get the "Unable to parse filter string" error.
> 
> tcpdump host sundown
> tcpdump host 149.82.78.64
> tcpdump -i ppp0 host 149.82.78.64
> tcpdump -i ppp0 localhost
> host 149.82.78.64
> host localhost
> tcpdump -i ppp0 127.0.0.1
> host 127.0.0.1
> host speedygt
> tcpdump host speedygt
> tcpdump host 192.168.0.1
> 
> This info below is also posted on the shell that I started ethereal from and
> don't know how much relevance it has.
> 
> Gtk-WARNING **: invalid cast from `(unknown)' to `GtkList'
> 
> Gtk-WARNING **: invalid cast from `(unknown)' to `GtkObject'
> 
> Gtk-CRITICAL **: file gtkobject.c: line 1080 (gtk_object_get_data): assertion
> `GTK_IS_OBJECT (object)' failed.
> 
> Linux ver:
> Linux speedygt 2.2.14-15mdk #1 Tue Jan 4 22:24:20 CET 2000 i586 unknown
> 
> Ethereal ver:
> ethereal 0.8.11, with GTK+ 1.2.8, with libpcap 0.5, with libz 1.1.3, without SNMP
> 
> I'll take any help I can get.
> Thanks- Gary