Using AutoInstall
The AutoInstall process is designed to configure the multiport serial router automatically after connection to
the WAN. In order for AutoInstall to work properly, a Transmission Control Protocol/Internet Protocol
(TCP/IP) host on the network must be preconfigured to provide the required configuration files. The TCP/IP
host can exist anywhere on the network providing the following two conditions are maintained:
The host must be on the remote side of the multiport serial router's synchronous serial connection to the
WAN.
1.
User Datagram Protocol (UDP) broadcasts to and from the multiport serial router and the TCP/IP host
must be enabled.
2.
Refer to the configuration guide for additional information.
Note AutoInstall only works on synchronous serial connections.
Take the following steps to prepare your multiport serial router for the AutoInstall process:
Step 1 Attach the synchronous serial cable to the router.
Step 2 Turn ON power to the router.
The router loads the operating system image from Flash memory. If the remote end of the WAN connection is
connected and properly configured, the AutoInstall process begins.
If the AutoInstall process is successfully completed, continue to Step 3 to write the configuration data to the
multiport serial router's nonvolatile random-access memory (NVRAM). If the Autoinstall process is not
successfully completed, contact your system administrator for assistance.
Step 3 At the enable prompt, enter the copy running-config startup-config command:
Router# copy running-config startup-config
This command saves the configuration settings that the AutoInstall process created in the router. If you fail to
do this, the configuration is lost the next time you reload the router.
Using the Setup Facility
If you do not plan to use AutoInstall, do not connect the multiport serial router's WAN and (serial) cable to the
channel service unit/data service unit (CSU/DSU). This prevents the router from attempting to run the
AutoInstall process. The router attempts to run AutoInstall whenever you start it if the WAN connection is
connected on both ends and the router does not have a configuration stored in NVRAM. It can take several
minutes for the router to determine that AutoInstall is not set up to a remote TCP/IP host.
Once the router has determined that AutoInstall is not configured, it defaults to the setup facility. If the WAN
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500/2520/2520_23/c2520cfg.htm (4 of 16) [10/27/2000 3:07:51 PM]
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