Is there a way to change the password on a Cat 4000 Sup II other than taking the box down and going into ronmon mode ? Can it be changed via snmp or any other way . I know we changed it on a router once and was wondering if there is a way to do this . Somehow when we ran a Ciscoworks job against 3 boxes it screwed up the password somehow and now we cannot access these boxes . 2 of the boxes we cannot even telnet to because we don't know the telnet password now and 1 box we are unable to change the enable password for the same reason . Any ideas on how to fix this without taking the box down ?
Changing password via SNMP may not possible unless you know the hashed password. If you have another exact switch running the same CatOS, then you can get the hashed form from that and use that to change password on this switch. Also, different CatOS versions produce different hashes. You can follow: http://www.cisco.com/warp/public/477/SNMP/move_files_images_snmp.html
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I have done this using the below , however , I do not think it will work on 4.x code , It has worked for me below 4.x and above 4.x
Make a file on your tftp box read write permissions
you can name it anything you want
this will set the pw to ww
set password xxxxxxxxxxxxxxxxxxxxx
set enablepass xxxxxxxxxxxxxxxxxxxxx
copy to switch from tftp server
snmpset -c read/write string ip address of host .22.214.171.124.126.96.36.199.188.8.131.52 octetstring ip address of tftpserver
snmpset -c read/write string ip address of host .184.108.40.206.220.127.116.11.18.104.22.168 octetstring name of file on tftpbox
snmpset -c read/write string ip address of host .22.214.171.124.126.96.36.199.188.8.131.52 integer 1
snmpset -c read/write string ip address of host .184.108.40.206.220.127.116.11.18.104.22.168 integer 2
snmpwalk -c read/write string ip address of host .22.214.171.124.126.96.36.199.1.5
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