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I don't know perl's cisco library, but this (see attached) is what I wrote to 
send commands to cisco routers and switches or fetch some values.

To get it's running config for example I do this:

------------------------------------
require 'ciscotelnet'

c  iscoTelnet.new("Host" '10.253.1.8',
                    "Password" "users-password",
                     "Enable" "enable-password",
                     "User" "martin")

c.open
c.login
c.enable
c.cmd "terminal length 0"
puts c.cmd("show run", 20)
------------------------------------

Martin





On Saturday 31 March 2007 13:40:15 Robert Dober wrote:
> On 3/31/07, Brian Candler <B.Candler / pobox.com> wrote:
> > On Sat, Mar 31, 2007 at 12:48:22AM +0900, Pablo Zorzoli wrote:
> > > Is there any approach similar to perl's Net:Telnet:Cisco [1] in ruby?
> > > Has anyone nice experiences in this mix?
> >
> > Not that I'm aware of. But if you discover something please let me know -
> > I'm going to have to do this myself in the next few weeks too.
> >
> > I was planning just to use plain Net::Telnet, which I think is good
> > enough for what I need.
>
> Please kindly let me know about this, I was trying to do this with
> Catalyst 29xx series Switches and a 2600 router, no luck so far, I
> guess the prompt, timeout selection is quite tricky :(
>
> Cheers
> Robert
>
> >I was also planning to try to make a wrapper for Net::SSH
> > to make it provide an IO object that can be passed into Net::Telnet.
> >
> > Regards,
> >
> > Brian.



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iscotelnet.rb"
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iscotelnet.rb"

require 'net/telnet'


class CiscoTelnet
require 'net/telnet'

def initialize options
 @host      ptions["Host"] || "localhost"
 @user      ptions["User"] || "martin"
 @password  ptions["Password"] || "nopass"
 @enable    ptions["Enable"] || "nopass"
 @debug     ptions["Debug"] || false
 @prompt    il
end

def debug_out(msg)
 $stdout.puts ">> " + msg if @debug
end

def debug_in(msg)
 $stdout.puts "<< " + msg if @debug
end


def open
 @socket  et::Telnet.new("Host" @host)
end

def close
 @socket.close
end

# returns last line received
def expect(str)
  ret  socket.waitfor("String" str, "Timeout" 10) { |rv| debug_in(rv) }
  return ret.split('\n').last.strip
end

# overwrite to match dynamic prompt
def cmd(command, timeout)
 debug_out command
 return @socket.cmd("String" command, "Match" Regexp.new(Regexp.escape(@prompt)), "Timeout" timeout) { |c| debug_in(c) }
end

def print(s)
 @socket.print(s) { |c| debug_out c }
end

def puts(s)
 @socket.puts(s) { |c| debug_out c }
end

def login
 expect "Username"
 puts @user
 expect "Password"
 puts @password
 @prompt  xpect '>'
 $stdout.puts "prompt is " + @prompt if @debug
end

def enable
 puts "enable"
 expect "Password"
 puts @enable
 @prompt  xpect '#'
 $stdout.puts "new prompt is " + @prompt if @debug
end


end



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