Oh how I wish they did. Cisco didn't add that functionality until IOS 15.0.1(M1) or so. Most of our routers are still in the 12.x train. I am actually controlling some F5's with Net::SSH in the manner in which you are suggesting. It works very well except for one thing. I wrote this module as a threaded app with ithreads and Net::SSH isn't thread safe. I found thanks to this site that Net::SSH::Perl isn't thread safe either. What I may end up doing is moving all of the Cisco routers into code that uses Net::SSH::Perl and use parent/child forking. I suppose I never really found out whether Net::OpenSSH is thread safe. I went looking for it and never found the information.