Question

我尝试过Net :: RawIP和Net :: Write :: Layer3。如果我在网络中提供特定的IP地址，它工作正常。虽然我得到了

sendto() at /usr/lib/perl5/Net/RawIP.pm line 630. shell returned 13

或

Net::Write::Layer::send: Permission denied

如果我将目的地地址更改为66.66.66.255

任何想法？

我正在使用的代码在这里

use Net::Write::Layer qw(:constants);
use Net::Write::Layer3;
use NetAddr::IP;
use Net::RawIP;

$message = "Foo";

# using Net::RawIP
$n = Net::RawIP->new({
                        ip  => {
                            tos => 0xC0,
                            daddr => '66.66.66.2',
                            protocol => 2,
                        },
                        generic => {
                            data => $message
                        }
                    });
$n->send;

# using Net::Write::Layer3
my $desc = Net::Write::Layer3->new(
                dst      => '66.66.66.2',
                protocol => '2',
                family   => NW_AF_INET,
);    
$desc->open;
$desc->send($message);
$desc->close;

Answer 1

错误13通常是EACCES - 即您没有足够的权限发送到广播套接字。

如何使用Perl发送IP广播消息

1 个答案: