Telnet and PowerShell "Daren Daigle" <ddaigle[ at ]bgca.org> 13.07.2007 18:08:55 I am trying to automate a process through powershell to connect via telnet port to a cisco switch or router. After I do so, log in, have it copy the running config to a tftp server and disconnect. I know how to do the steps manually but i would like to automate this as i have a large number of switches and routers that I want to capture both the running and startup configs. I have found a script that makes powershell act like a telnet client, but i am looking for a way to deal with the telnet data like i would from the old standard of line by line reading like from a text file. Any suggestions on how to set up the stream so i can react to and respond back to the session in say a line by line format (helps for parsing). Daren Daigle Boys and Girls Clubs of America

Re: Telnet and PowerShell Marco Shaw <marco.shaw[ at ]_NO_SPAM_gmail.com> 13.07.2007 18:42:16 [Quoted Text] > Any suggestions on how to set up the stream so i can react to and respond > back to the session in say a line by line format (helps for parsing). I think I followed you up to this last paragraph... How about this? 63# start-transcript device1.log Transcript started, output file is device1.log 64# "testing" testing 65# stop-transcript Transcript stopped, output file is C:\powershell\device1.log 66# gc device1.log ********************** Windows PowerShell Transcript Start Start time: 20070713153851 Username : ALIANT\MA36788 Machine : NB517949 (Microsoft Windows NT 5.1.2600 Service Pack 2) ********************** Transcript started, output file is device1.log 64# "testing" testing 65# stop-transcript ********************** Windows PowerShell Transcript End End time: 20070713153900 ********************** 67# You can use start-transcript to record everything going in on the console. Then you might just have to trim the first and last few lines to get just your config. Marco

Re: Telnet and PowerShell "Jason" <nospam[ at ]nospam.com> 13.07.2007 20:33:50 [Quoted Text] > I have found a script that makes powershell act like a telnet client, but > i am looking for a way to deal with the telnet data like i would from the > old standard of line by line reading like from a text file. Might be overkill, but perhaps the System.Console class has what you need (see the ReadLine method notes): http://msdn2.microsoft.com/en-us/library/system.console.aspx There's also the NetCmdlets from nSoftware, which might have easier-to-use methods to read telnet output: http://www.nsoftware.com/powershell/default.aspx Cheers, Jason ------------------------------------------------------ PowerShell Training at SANS Conferences http://www.WindowsPowerShellTraining.com ------------------------------------------------------

Re: Telnet and PowerShell hecks[ at ]hotmail.co.uk 13.07.2007 20:47:08 On Jul 13, 7:08 pm, "Daren Daigle" <ddai...[ at ]bgca.org> wrote: [Quoted Text] > I am trying to automate a process through powershell to connect via telnet > port to a cisco switch or router. After I do so, log in, have it copy the > running config to a tftp server and disconnect. > > I know how to do the steps manually but i would like to automate this as i > have a large number of switches and routers that I want to capture both the > running and startup configs. > > I have found a script that makes powershell act like a telnet client, but i > am looking for a way to deal with the telnet data like i would from the old > standard of line by line reading like from a text file. > > Any suggestions on how to set up the stream so i can react to and respond > back to the session in say a line by line format (helps for parsing). > > Daren Daigle > Boys and Girls Clubs of America Lee Holmes' Connect-Computer v2 script is pretty easy to adapt for a combination of interactive and automated processing in a session (if that's what you mean): http://www.leeholmes.com/blog/default,date,2006-12-04.aspx Scroll down to 29 Nov 2006, 'Scripting Network / TCP Connections in PowerShell'. -Hecks

Re: Telnet and PowerShell Hal Rottenberg <halr9000[ at ]gmail.com> 13.07.2007 21:02:37 On Jul 13, 4:47 pm, he...[ at ]hotmail.co.uk wrote: [Quoted Text] > Lee Holmes' Connect-Computer v2 script is pretty easy to adapt for a > combination of interactive and automated processing in a session (if > that's what you mean): > > http://www.leeholmes.com/blog/default,date,2006-12-04.aspx > > Scroll down to 29 Nov 2006, 'Scripting Network / TCP Connections in > PowerShell'. Direct link: http://www.leeholmes.com/blog/ScriptingNetworkTCPConnectionsInPowerShell.aspx OMG, I was working on this problem using connect-computer.ps1 version 1, didn't know about v2! I basically did v1.1 in a very poor way. Oh well, I learned some things. :) Read about it here if you like: http://halr9000.com/article/397 -hal http://halr9000.com