
Connecting ASN Routers to a Network
1-4
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Netboot
Network
(Synchronous
or Ethernet
connection)
Network
(Synchronous
or Ethernet
connection)
The 100BASE-T Hub obtains all startup files from a remote
UNIX- or DOS-based workstation that is configured as a
BOOTP server. (Getting these files individually, rather than
getting the entire
asn.exe
file, minimizes the cost of line
usage and prevents saturation of the router’s memory.)
Requires a local
asn.exe
file, a local console connection and
a communications link over an HDLC, Frame Relay, or
Ethernet interface.
If Netboot fails, the router tries the Local Boot procedure.
Directed
Netboot
Network
(Synchronous
or Ethernet
connection)
Network
(Synchronous
or Ethernet
connection)
The 100BASE-T Hub obtains all startup files from a remote
UNIX- or DOS-based workstation that is configured as a
Trivial File Transfer Protocol (TFTP) server. You specify the
IP address of the TFTP server and the pathname of the
startup files before booting.
Requires a local console connection and a communications
link over an HDLC, Frame Relay, or Ethernet interface.
If Directed Netboot cannot retrieve the appropriate files, the
router attempts normal Netboot. If this fails, the router tries
Local Boot.
Local
Boot
Local
(Flash
memory)
Local
(Flash
memory)
The 100BASE-T Hub boots using a software router image
and configuration file stored in local memory.
During the initial startup, the ASN uses a generic startup
configuration file. You customize the default configuration file
by assigning an IP address to an interface and running an
installation script; this is called the
Quick-Start
procedure.
Quick-Start requires a local console and an active IP
network connection.
Table 1-1. Summary of Boot Options
(continued)
Boot
Option
Source for
Software
Image
Source for
Config File Description and Requirements
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