Cisco 2525 Betriebsanweisung PDF herunterladen (Seite 82)

4-20 Cisco 2524 and Cisco 2525 Router User Guide

Specifying the Boot Method

You can enter multiple boot commands in the conﬁguration in NVRAM to provide a

backup method for loading the Cisco IOS image onto the router. The router boots using the

ﬁrst boot command that succeeds. If you enter multiple boot commands, the router executes

them in the order they are entered. There are two ways to load the Cisco IOS image: from

Flash memory or from a TFTP server on the network.

1 Flash memory

Information stored in Flash memory is not vulnerable to network failures that might

occur when you load system software from servers. In the following example, replace

ﬁlename with the ﬁlename of the Cisco IOS image:

Router> enable

Password:

enablepassword

Router# configure terminal

Router (config)# boot system flash

filename

Router (config)# Ctrl-Z

Router# copy running-config startup-config

Building configuration ...

[OK]

Router# exit

Router>

2 TFTP server

If Flash memory is not available, or if Flash memory does not contain a valid Cisco IOS

image, you can specify that system software be loaded from a TFTP server on your

network as a backup boot method for the router. In the following example, replace

ﬁlename with the ﬁlename of the Cisco IOS image, and replace ipaddress with the IP

address of the TFTP server:

Router> enable

Password:

enablepassword

Router# configure terminal

Router (config)# boot system tftp

filename ipaddress

Router (config)# Ctrl-Z

Router# copy running-config startup-config

Building configuration ...

[OK]

Router# exit

Router>

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Cisco 2525 Betriebsanweisung Seite 82