Abu Khaled wrote:

On 4/24/05, Alex Soares de Moura <[EMAIL PROTECTED]> wrote:

Abu Khaled wrote:


Greetings...

I don't know much about scripting but i tried to write one to scan my
local network using the net/arping port.
here is the script:
<sciprt start>
#!/bin/sh
IP=1
while [ $IP -le 20 ]
do
echo -e ".\c"
 if ( arping -c 1 -q -i rl1 10.0.0.$IP ) then
    echo -e "\n10.0.0.$IP Online"
 fi
IP=$(( $IP +1 ))
done
echo -e "\n"
<script end>

The script runs and reports OK but it is very slow and takes a lot of
time to scan a large network. Does anyone have an idea on how to
improve it or provide an alternate way to do it?

PS: I used the arpscan port in the past but it is reported as broken:
Unfetchable.
    I'm running FreeBSD 5.4 Stable.



Have you tried the ettercap tool? It's in the ports:
/usr/ports/net-mgmt/ettercap

Best regards,

Alex




Thanks Alex. Ettercap is a nice tool but I don't run X on my Gateway/Servers.


Neither do I. :-) Now I know ettercap has a GUI...
I've just checked the http://ettercap.sf.net/ website and - gladly - the GUI
isn't the only interface option. From the website: "Running Ettercap: You need
to select a user interface (no default) using -T for Text only, -C for
the Ncurses based GUI, or -G for the nice GTK2 interface."


Building it the way you want:
-----------------------------------------------
# cd /usr/ports/net-mgmt/ettercap
# make

You may use the following build option(s):

WITHOUT_GTK=yes     builds without GTK2+ GUI
WITHOUT_ICONV=yes   builds without support for UTF-8
WITHOUT_PCRE=yes    builds without support for perl regexps in filters
WITHOUT_PLUGINS=yes builds without ettercap plugins
WITHOUT_SSL=yes     builds without support for SSH1 and SSL decryption
-----------------------------------------------

Good packet hunting,

Alex
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