Trying to create a perl script that SSHv2 to a Cisco device for their XML/NETCONF API. In order to do so, it needs to connect to a subsystem on the remote switch.

Command line example would be:
ssh username@192.168.1.1 -s xmlagent

I've been able to get this to work using Expect. But, I'm not sure that's the best way to do it.

Using expect:

## SSH TO THE SWITCH
my $exp = new Expect();
$exp->raw_pty(1);
$exp->spawn("ssh","-s","-2",$user."@".$switch,"xmlagent");

[download]

Using Net::OpenSSH:
I've tried to get it to work using Net::OpenSSH, but that fails on an error:

my $ssh = Net::OpenSSH->new("$host", master_opts=>[-s => "xmlagent"], 
+user=>$user, password=>$pass);

[download]

Debugging OpenSSH shows it is giving an SSH command formatted like this:
ssh -s xmlagent 192.168.1.1

Which SSH fails on , with the message
ssh: Could not resolve hostname xmlagent: Name or service not known

SSH appears to want the hostname first, and then the options rather than options first then hostname.

So, should I keep using Expect to SSH to the switch, or is there a better way to do this?

In reply to SSH to remote subsystem (Net::OpenSSH?) by sojourner9

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