Software Upgrade Methods; Recovering A Lost Password - Cisco CISCO851-K9 - 851 Integrated Services Router Configuration Manual

Chapter 14 Troubleshooting
Table 14-3 debug atm packet Command Output Description (continued)
Field
VCD: 0xn
VPI: 0xn
DM: 0xn
Length: n

Software Upgrade Methods

Several methods are available for upgrading software on the Cisco 850 and Cisco 870 series access
routers, including:
•
•
•
•

Recovering a Lost Password

To recover a lost enable or lost enable-secret password:
1.
2.
3.
4.
Recovering a lost password is only possible when you are connected to the router through the console
Note
port. These procedures cannot be performed through a Telnet session.
See the "Hot Tips" section on Cisco.com for additional information on replacing enable secret
Tip
passwords.
OL-5332-01
Description
Virtual circuit associated with this packet, where n is some
value.
Virtual path identifier for this packet, where n is some value.
Descriptor mode bits, where n is some value.
Total length of the packet (in bytes) including the ATM
headers.
Copy the new software image to flash memory over the LAN or WAN while the existing Cisco IOS
software image is operating.
Copy the new software image to flash memory over the LAN while the boot image (ROM monitor)
is operating.
Copy the new software image over the console port while in ROM monitor mode.
From ROM monitor mode, boot the router from a software image that is loaded on a TFTP server.
To use this method, the TFTP server must be on the same LAN as the router.
Change the Configuration Register
Reset the Router
Reset the Password and Save Your Changes
Reset the Configuration Register Value
Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide
(for lost enable secret passwords only)
Software Upgrade Methods
14-9