Before You Begin - Juniper J-Series Administration Manual

J-series Services Router Administration Guide
2.
3.

Before You Begin

To configure a network for Services Router autoinstallation, complete the following
tasks:
84
Before You Begin
After the new Services Router acquires an IP address, the autoinstallation process
on the router attempts to download a configuration file in the following ways:
If the DHCP server specifies the host-specific configuration file (boot file)
a.
, the router uses that filename in the TFTP server request. (In
hostname.conf
the filename,
hostname
autoinstallation process on the new router makes three unicast TFTP requests
for . If these attempts fail, the router broadcasts three requests
hostname.conf
to any available TFTP server for the file.
If the new router cannot locate
b.
unicasts or broadcasts TFTP requests for a default router configuration file
called network.conf , which contains hostname-to-IP address mapping
information, to attempt to find its hostname.
If contains no hostname entry for the new Services Router, the
c. network.conf
autoinstallation process sends out a DNS request and attempts to resolve
the new router's IP address to a hostname.
If the new Services Router can determine its hostname, it sends a TFTP
d.
request for the hostname.conf
If the new Services Router is unable to map its IP address to a hostname, it
e.
sends TFTP requests for the default configuration file
After the new Services Router locates a configuration file on a TFTP server,
autoinstallation downloads the file, installs the file on the router, and commits
the configuration.
Configure a DHCP server on your network to meet your network requirements.
You can configure a Services Router to operate as a DHCP server. For more
information, see "Configuring the Router as a DHCP Server" on page 63.
Create one of the following configuration files, and store it on a TFTP server in
the network:
A host-specific file with the name
undergoing autoinstallation. Replace
Router. The hostname.conf
information necessary for the router with this hostname.
A default configuration file named
necessary to enable you to telnet into the new Services Router for further
configuration.
Physically attach the Services Router to the network using one or more of the
following interface types:
Fast Ethernet
is the hostname of the new router.) The
, the autoinstallation process
hostname.conf
file.
for each Services Router
hostname.conf
with the name of a Services
hostname
file typically contains all the configuration
with the minimum configuration
router.conf
.
router.conf