> I wouldn't bother with Perl at all in this case. A much better solution for scanning large networks and seeing what's alive is thcrut.

I've just tried to compile 'thcrut' in a sandbox - pure curiosity, since I've got a Perl script that does host discovery for me - and I've got to say that the message at the end of running 'configure' does not inspire much confidence in me. 

[...]
Preprocessor flags: -I../pcre-3.9 -I../Libnet-1.0.2a/include  -I/usr/l
+ocal/include
      Linker flags: -L../pcre-3.9 -L../Libnet-1.0.2a/src  -L/usr/local
+/lib
         Libraries: -L/usr/local/lib -lpcre -lnet -lpcap -lnsl
                                                                      
+     _
                                                                      
+   _( (~\
                  _ _                        /                        
+  ( \> > \
              -/~/ / ~\                     :;                \       
+_  > /(~\/
             || | | /\ ;\                   |l      _____     |;     (
+ \/    > >
 --------.    _\\)\)\)/ ;;;                  `8o __-~     ~\   d|     
+ \      //
 * HELP * |  ///(())(__/~;;\                  "88p;.  -. _\_;.oP      
+  (_._/ /
 * HELP * | (((__   __ \\   \                  `>,% (\  (\./)8"       
+  ;:'  i
          | )))--`.'-- (( ;,8 \               ,;%%%:  ./V^^^V'        
+  ;.   ;.
 I'M JUST | ((\   |   /)) .,88  `: ..,,;;;;,-::::::'_::\   ||\        
+ ;[8:   ;
 STUPID   !  )|  ~-~  |(|(888; ..``'::::8888oooooo.  :\`^^^/,,~--._   
+ |88::  |
 WHITEHAT.|_____-===- /|  \8;; ``:.      oo.8888888888:`((( o.ooo8888O
+o;:;:'  |
          |. |_~-___-~_|   `-\.   `        `o`88888888b` )) 888b88888P
+""'     ;
PLEASE    | ; ~~~~;~~         "`--_`.       b`888888888;(.,"888b888"  
+..::;-'
DONT HURT |   ;      ;              ~"-....  b`8888888:::::.`8888. .:;
+;;''
MEEEEEE!  |      ;    ;                 `:::. `:::OOO:::::::.`OO' ;;;'
+'
          | :       ;                     `.      "``::::::''    .'
* HELP *  |    ;                           `.   \_              /
* HELP *  |  ;       ;                       +:   ~~--  `:'  -';
__________!                                   `:         : .::/  -Tua 
+Xiong
                 ;                            ;;+_  :::. :..;;;
-=[ (C) THE HACKERS CHOICE - Estd. 1995 ]=- -=[ www.ircsnet.net /j #TH
+C ]=-
------=[ WHQ: http://www.thc.org ]=- - -=[ Enjoy your enemy... ]=-----
+-----
Configuration complete. Now type: make all install; thcrut -h

[download]

I don't know about you, but I'd much rather "bother" with a Perl script - especially since you'd need to run 'thcrut' as root to get any useful action. I'll leave the dubious pleasure of carefully vetting several hundred K of C code to someone else. 


-- 
Human history becomes more and more a race between education and catastrophe. -- HG Wells

In reply to Re^2: ARP Lookups by oko1
in thread ARP Lookups by WalkingZero

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