# /usr/ bin/perl -w

use strict;
use SNMP_util "0.90";

my @ip;
my @ip_result_ping;
my @ip_result_snmp;
my $timeout=200;
my $test;

#my $path = "/media/hda5/nemo/txt/found_ip.txt";
my $path = "d:/nemo/txt/found_ip.txt";


open (IN, $path) || die "Fehler !\n";
@ip=<IN>;
close(IN);

print "eingelesene Ip-Adressen @ip\n";

foreach my $ip_address (@ip){
    $test = `ping -n 2 -w $timeout $ip_address`;
    
    if ($test =~ /Antwort von $ip_address/){
        push (@ip_result_ping, $ip_address);
        my $host = ("rmon12\@$ip_address");
        my $snmp_result = &snmpget($host, 'sysDescr');
            
        if ($snmp_result ne ""){
               
 push (@ip_result_snmp, $ip_address);
        }
    }
}
print "erreichbare IP-Adressen @ip_result_ping\n";
print "Snmp unterstützen @ip_result_snmp\n";

print STDERR "checking '$ip_address'\n";
...
print STDERR "Antwort: '$test'\n";