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Understanding Tools and Options
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The following sections describe the boot process for the Local Boot and Netboot
startup options:
•Netboot Process (EZ-Install, Netboot, or Directed Netboot)
•Local Boot Process
Netboot Process
When booting over the network using EZ-Install, Netboot, or Directed Netboot,
AN/ANH and ARN routers complete the following tasks:
1. Determines its IP address
2. Obtains the operating-system kernel file and/or configuration file by
communicating with a configured BootP server on the IP network
3. Reboots, using the newly transferred kernel file
4. Obtains application and string files over the networ k as it needs them
5. Begins bridging and routing traffic as specified in the configuration file
The following sections describe in more detail the key steps in this process:
•Obtaining an IP Address Manually (Netboot or Directed Netboot)
or Obtaining an IP Address Automatically (EZ-Install)
•Obtaining the Kernel and Configuration Files
Obtaining an IP Address Manually (Netboot or Directed Netboot)
For Netboot and Directed Netboot, you configure the IP address manually.
Chapter 3 describes how to use Site Manager to configure netboot interfaces.
Chapter 4 describes how to configure netboot using the Technician Interface.
Obtaining an IP Address Automatically (EZ-Install)
During the EZ-Install process, AN/ANH and ARN routers obtain its IP address as
follows:
1. When you turn on the router, it runs a set of diagnostic tests.
2. The router sends a BootP request to the upstream router for an IP address and
subnet mask.