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comp.lang.ruby

Connecting to Cisco device using Ruby

Peny Swain

2/26/2009 7:57:00 PM

Hi,

I'm new to Ruby and want to use Ruby for my automation.I'm trying out a
small program now.Basically, what I'm trying to do is:

1)Connect to the cisco switch via terminal server which has a public IP
address and a port number. (I'm using a fake ip here).

2)Login to the switch giving the right username and password.

3)After login, issue a switch command and get the output back.


The below program works if I comment out the "waitfor" but not
consistent and other times it fails.Can someone please point out whats
the issue here or if possible can someone share the piece of code that
does the above task.


Thanks
s_k





require 'net/telnet'
require 'socket'

localhost = Net::Telnet::new(
"Host" => "10.10.10.20",
"Port" => 2033,
"Binmode" => true,
"Output_log" => 'c:\RubyL\output.txt',
# "Dump_log" => "dump_log",
"Prompt" => /[$%#>:] \z/n,
"Telnetmode" => true,
"Timeout" => 50,
"Waittime" => 30
# "Proxy" => proxy
) { |c| print c }


localhost.cmd("\r") {|c| print c }

if localhost.waitfor({"Match" => 'vcctest-30-6k>' , "Timeout" => 50})
localhost.cmd("\r enable \r"){|c| print c }
localhost.cmd("cisco"){|c| print c }
else
begin

# Adding username and password
localhost.waitfor({"Match" => 'Username:' , "Timeout" => 50})
localhost.cmd("cisco"){|c| print c }
localhost.waitfor({"Match" => 'Password:' , "Timeout" => 50})
localhost.cmd("cisco"){|c| print c }
rescue Exception => e
puts e.message
retry
#Adding enable password
localhost.waitfor({"Match" => 'vcctest-30-6k>' , "Timeout" =>
50})
localhost.cmd("\r enable \r"){|c| print c }
localhost.cmd("cisco"){|c| print c }
localhost.cmd("exit"){|c| print c }

ensure
localhost.close

end
end
--
Posted via http://www.ruby-....
2 Answers

Peter Booth

2/26/2009 8:27:00 PM

0

Did you see http://groups.google.com/group/ruby-talk-google/browse_thread/thread/096cab...
?

On Feb 26, 2009, at 2:57 PM, Peny Swain wrote:

> Hi,
>
> I'm new to Ruby and want to use Ruby for my automation.I'm trying
> out a
> small program now.Basically, what I'm trying to do is:
>
> 1)Connect to the cisco switch via terminal server which has a public
> IP
> address and a port number. (I'm using a fake ip here).
>
> 2)Login to the switch giving the right username and password.
>
> 3)After login, issue a switch command and get the output back.
>
>
> The below program works if I comment out the "waitfor" but not
> consistent and other times it fails.Can someone please point out whats
> the issue here or if possible can someone share the piece of code that
> does the above task.
>
>
> Thanks
> s_k
>
>
>
>
>
> require 'net/telnet'
> require 'socket'
>
> localhost = Net::Telnet::new(
> "Host" => "10.10.10.20",
> "Port" => 2033,
> "Binmode" => true,
> "Output_log" => 'c:\RubyL\output.txt',
> # "Dump_log" => "dump_log",
> "Prompt" => /[$%#>:] \z/n,
> "Telnetmode" => true,
> "Timeout" => 50,
> "Waittime" => 30
> # "Proxy" => proxy
> ) { |c| print c }
>
>
> localhost.cmd("\r") {|c| print c }
>
> if localhost.waitfor({"Match" => 'vcctest-30-6k>' , "Timeout" => 50})
> localhost.cmd("\r enable \r"){|c| print c }
> localhost.cmd("cisco"){|c| print c }
> else
> begin
>
> # Adding username and password
> localhost.waitfor({"Match" => 'Username:' , "Timeout" => 50})
> localhost.cmd("cisco"){|c| print c }
> localhost.waitfor({"Match" => 'Password:' , "Timeout" => 50})
> localhost.cmd("cisco"){|c| print c }
> rescue Exception => e
> puts e.message
> retry
> #Adding enable password
> localhost.waitfor({"Match" => 'vcctest-30-6k>' , "Timeout" =>
> 50})
> localhost.cmd("\r enable \r"){|c| print c }
> localhost.cmd("cisco"){|c| print c }
> localhost.cmd("exit"){|c| print c }
>
> ensure
> localhost.close
>
> end
> end
> --
> Posted via http://www.ruby-....
>

Peny Swain

2/27/2009 1:21:00 AM

0

Peter Booth wrote:
> Did you see
> http://groups.google.com/group/ruby-talk-google/browse_thread/thread/096cab...
> ?

Thanks Peter.It worked.Heres's what I did:



t = Net::Telnet::new( "Host" => "10.10.10.20","Port" => 2044,"Timeout"
=> 20, "Output_log" => 'c:\RubyL\output.txt',
"Telnetmode"=> true,"Waittime"=>2) {|c| print c }

log = lambda{ |c| STDERR.print c }

#needs initial enter to bring the username promt
t.puts("\r")

t.waitfor(/Username:/, &log)
t.puts("cisco")
t.waitfor(/Password:/, &log)
t.puts("cisco")

t.waitfor(/vcctest-30-6k>/, &log)
t.puts("enable")
t.waitfor(/Password:/, &log)
t.puts("cisco")
t.waitfor(/vcctest-30-6k#/, &log)
t.puts("exit")
t.cmd(""){|c| print c}
--
Posted via http://www.ruby-....