I am suing followin script wrote by you , but it is working on,y for Cisco 2950 switch. it is not woring for Cisco 2811 router , cisco 1841 router. I am unable to write cfgmaker for the same 
you are requested to please provide the cfgmaker file for cisco Router [ 2811 , 1841 , 1721 Etc ]
Thanx in advance
Mayur Shah
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your script 
# cisco.htp
# This host template is for Cisco devices
# cfgmaker --host-template=cisco.htp
# Cisco CPU OID is 1.3.6.1.4.1.9.2.1.58.0
if( $sysdescr =~ /cisco/i ) {
$head_lines .= "#---------------------------------------------------------------------\n";
my $target_name = $router_name . ".cpu";
$target_lines .= <<ECHO;
routers.cgi*Icon: cisco-sm.gif
routers.cgi*Description: $sysname
routers.cgi*ShortDesc: $router_name
#-------------------------------------------------
Target[$target_name]: 1.3.6.1.4.1.9.2.1.58.0&1.3.6.1.4.1.9.2.1.58.0:$router_connect
Title[$target_name]: $router_name CPU load
YLegend[$target_name]: Percentage
ShortLegend[$target_name]: %
Legend1[$target_name]: CPU load in %
Legend3[$target_name]: Max Observed CPU load
LegendI[$target_name]:  CPU Load:
MaxBytes[$target_name]: 100
UnScaled[$target_name]: dwmy
Options[$target_name]: growright, gauge, nopercent, noo
PageTop[$target_name]: <h1>$router_name CPU load</h1>
     <div><table><tr>
          <td>System:</td>
          <td>$router_name in $html_syslocation</td>
     </tr><tr>
          <td>Maintainer:</td>
          <td>$html_syscontact</td>
     </tr><tr>
          <td>Description:</td>
          <td>$html_sysdescr</td>
     </tr><tr>
          <td>Resource:</td><td>CPU.</td>
     </tr></table></div>
routers.cgi*Icon[$target_name]: chip-sm.gif
routers.cgi*InOut[$target_name]: no
routers.cgi*InSummary[$target_name]: yes
routers.cgi*ShortDesc[$target_name]: CPU
routers.cgi*InCompact[$target_name]: yes
routers.cgi*Mode[$target_name]: cpu
routers.cgi*Options[$target_name]: nototal fixunit
ECHO
}Statistics: Posted by Mayurshah — Tue Oct 20, 2009 6:36 pm
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