script tcl with EEM for sync setting in routers HSRP

[r-barbosa]

Hi all,

I develop in script for sync setting the routers with HSRP. Follow Script tcl.

--------------------- flash0:sync_settings_hrsp.tcl ----------------

set filename_main "system:/running-config"

set main  [open $filename_main r]

set nrLinha 0

while {[gets $main linha_main] >= 0} {

######### ROUTER0 ########

    if [regexp -nocase {^hostname router0} $linha_main conteudo] {

                set filename2 "flash:/running-config_router1"

                set handle1  [open $filename_main r]

                set handle2  [open $filename2 w]

                set dados [read $handle1]

                regsub -line -all {^hostname asrouter0} $dados "hostname router1" nomehost

                regsub -line -all {^.ip address 192.168.1.2 255.255.255.0} $nomehost " ip address 192.168.1.3 255.255.255.0" fa0_0

                regsub -line -all {^.ip address 192.168.2.2 255.255.255.0} $fa0_0 " ip address 192.168.2.3 255.255.255.0" fa0_1

                puts $handle2 $fa0_1

                close $handle1

                close $handle2

        }

########### ROUTER1 #############

        if [regexp -nocase {^hostname router1} $linha_main conteudo] {

                set filename2 "flash:/running-config_router0"

                set handle1  [open $filename_main r]

                set handle2  [open $filename2 w]

                set dados [read $handle1]

                regsub -line -all {^hostname router1} $dados "hostname router0" nomehost

                regsub -line -all {^.ip address 192.168.1.3 255.255.255.0} $nomehost " ip address 192.168.1.2 255.255.255.0" fa0_0

                regsub -line -all {^.ip address 192.168.2.3 255.255.255.0} $fa0_0 " ip address 192.168.2.2 255.255.255.0" fa0_1

                puts $handle2 $fa0_1

                close $handle1

                close $handle2

         }

}

close $main

------------------------------------------------------------------------------------------

And create the follow EEM

  event manager applet cli-match

  event cli pattern "write memory.*" sync yes

  action 1.0 syslog msg "Syncing settings - HSRP"

  action 1.1 cli command "tclsh flash0:sync_settings_hrsp.tcl"

  action 1.2 cli command "copy flash0:running-config_router0 tftp://192.168.1.3/running-config_router0"

  action 1.3 cli command "copy flash0:running-config_router1 tftp://192.168.1.3/running-config_router1"

  set 2.0 _exit_status 1

____________________

I am intend to do and when you run the command "write memory" he raise the event and run the tcl script where it will only replace the ip address of the router interfaces and name and create another file "running-config" with the respective name of the router in flash. After that do the copy flash tftp to the other router leaving the other router with the updated configuration, but I tried and I generated the message "permission denied". But running it on hand if I use the event he runs EEM TCL but does not copy to another router via tftp. Any idea?

Regards.

[Joe Clarke]

You need to add:

action 0.5 cli command "enable"

However, I am always against wrapping tclsh in EEM when you could use EEM Tcl to accomplish what you want.  This will greatly reduce the overhead on the device.  You should consider rewriting your tclsh script into an EEM Tcl policy that does the processing and copying.  That Tcl policy can also watch for "write mem".

[r-barbosa]

Hi joseph.

not understand what you mean by "EEM Tcl" has some documentation?

Regards

[Joe Clarke · Accepted solution]

EEM includes a Tcl inferface as well.  More information can be found at

http://www.cisco.com/en/US/docs/ios/netmgmt/configuration/guide/nm_eem_policy_tcl.html .

[r-barbosa]

Hi, Joseph.

you know if it is possible I connect to another router and make the application settings? Only via socket? or copy tftp (which this generating permission denied)?

Regards.

[Joe Clarke]

Socket is the best way to do this.  I have a script (the Remote Command Shell) at http://www.cisco.com/go/easy that can be used to do stuff like this.