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Automated router/switch tftp backups when config changes

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posted by jkeife

Wed, Jul 23 2008

Downloads: 44

File size: 779 B

Automated router/switch tftp backups when config changes

Filed under: cisco router switch backup tftp ios perl

Here's a quick and dirty perl script that backs up your cisco ios router and switch configs via tftp when ever someone makes a config change. You need to have activestate perl install and Net::Telnet::Cisco and Timestamp::Simple perl mods.

You need to make sure your devices are sending syslog message to orion.
Create an alert/filter rule in syslog view that looks for messages containing *CONFIG*
Add an alert action that executes an external app. ie "C:\Perl\bin\perl.exe" D:\scripts\save_router_config.pl ${Hostname}
Copy perl script below. Make necessary changes. Our routers require usernames and passwords to login. If you routers only require password, the username variable is ignored.

#!/usr/bin/perl

use Net::Telnet::Cisco;
use Timestamp::Simple qw(stamp);

my $device = "$ARGV[0]";
my $user = "username";
my $pass = "password";
my $enable_pass = "enable_password";
my $backup_host = 'tftp_server';
my $numArgs = $#ARGV + 1;
my $dt = stamp;

if ($numArgs != 1 )
{
    print "usage: save_router_config.pl device name\n";
    exit;
}

my $session = Net::Telnet::Cisco->new(Host => $device );
$session->login($user, $pass);

my @output = "";

if ($session->enable($enable_pass) )
{
    @output = $session->cmd('show privilege');
    print "My privileges: @output";
}
else
{
    warn "Can't enable: " . $session->errmsg;
}

$session->cmd("copy run tftp://$backup_host/configs/$device/$dt-$device.cfg\n\n\n");

$session->close;

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