I have an application which uses Net::Telnet::Cisco to log in to various network devices, run some commands and parse the output. I have been trying to enhance the script to use SSH, but have run into problems due to the fact that the app uses threads.

I have attempted to do this using Net::Appliance::Session and Net::SSH::Perl, but neither appears to be thread safe. In each case I am able to write a simple test program which works, until I modify it so that the objects are instantiated from within a thread, in which case it consistently fails.

So now I am trying to use Net::SSH2. Does anyone have any experience using Net::SSH2 interactively with cisco devices or integrating it with Net::Telnet? What I would like to do is to pass an open Net::SSH2 connection to Net::Telnet::Cisco using Net::Telnet's fhopen() method. However, while the documentation for Net::SSH2::Channel says it is a tied filehandle, if I try to create one and hand it off to Net::Telnet, say like this (I tried with and without the commented line): 

my $chan = $ssh2->channel();
#$chan->shell();
my $conn = Net::Telnet->new(Fhopen => $chan);

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I get the following error: 
Can't locate object method "FILENO" via package "Net::SSH2::Channel" a
+t /usr/lib/perl5/site_perl/5.8.8/Net/Telnet.pm line 560.

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Does anyone have any experience of suggestions on this? Also, has anyone have any experience using the Pseudo Terminal available via $chan->pty()? If so, any suggestions on how I may be able to integrate Net::Telnet or Net::Telnet::Cisco using that?

Thanks in advance.

In reply to Using Net::SSH2 with Net::Telnet::Cisco by ryber

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