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perlsshtelnetroutercisco

Perl ssh connection and execute telnet connection

I have multiple cisco routers configured with telnet access allowed from 5 specified hosts. Now I want to execute a perl script on one host which connects via ssh to the other hosts and checks if telnet to the router is possible. I tried the system "ssh host" command but unfortunately with no joy. Could somebody help me please?

Many thanks in advance.

I tried the following but with no success. Some ideas?


use Net::OpenSSH;

$ssh = Net::OpenSSH->new("linuxserver", user => "username", password => "password", master_stderr_discard => 1);
$command = "telnet routername";
@out = $ssh->capture({stdin_data => "routerpassword\n"}, $command);

print "@out\n";
Solution

  • You can use Net::SSH2 to connect and forward a connection to the router using the tcpip method. Alternately you can use Net::OpenSSH (which only requires the OpenSSH binaries) to do the same, see the information on Tunnels.