Cisco 1802 Especificaciones descargar pdf (Pagina 151)

14-9

Cisco 1800 Series Integrated Services Routers (Fixed) Software Configuration Guide

OL-6426-02

Chapter 14 Troubleshooting

Software Upgrade Methods

Several methods are available for upgrading software on the Cisco 1800 series integrated services

fixed-configuration routers, including:

• 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.

Recovering a Lost Password

To recover a lost enable or lost enable-secret password:

1. Change the Configuration Register

2. Reset the Router

3. Reset the Password and Save Your Changes (for lost enable secret passwords only)

4. Reset the Configuration Register Value

Note Recovering a lost password is only possible when you are connected to the router through the console

port. These procedures cannot be performed through a Telnet session.

Tip See the “Hot Tips” section on Cisco.com for additional information on replacing enable secret

passwords.

Ta b l e 14-3 debug atm packet Command Output Description

Field Description

ATM 0 Interface that is generating the packet.

(O) Output packet. (I) would mean receive packet.

VCD: 0xn Virtual circuit associated with this packet, where n is some value.

VPI: 0xn Virtual path identifier for this packet, where n is some value.

DM: 0xn Descriptor mode bits, where n is some value.

Length: n Total length of the packet (in bytes) including the ATM headers.

1 2 ... 146 147 148 149 150 151 152 153 154 155 156 ... 197 198

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Cisco 1802 Especificaciones Pagina 151