According to the Net::Ping docs, this could be as straightforward as: 
#!/usr/local/bin/perl -w
use strict;
use Net::Ping;
warn "Code is untested";
my $host="192.168.100.12";
my $p=Net::Ping->new('tcp');
$p->{'port_num'}=80;
echo "$host is alive!\n" if $p->ping($host);

[download]
According to the documentation, this will show the host as alive when Net::Ping can make a successful connection to port 80 of the target host, i.e. when there is something listening on that port (presumably a webserver).

I have no idea what the syn protocol is, so I can't help you there.

CU
Robartes-

In reply to Re: ping problem by robartes
in thread ping problem by ralijani

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