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Installing the Linux System through an Ethernet Connection 31
address and IP address. For example, when obtaining the configuration
file from the TFTP server, the OSN|M module with the IP address
10.10.10.1 and MAC address 00-00-12-34-56-79 matches the
configuration file in the following order:
a Searches file 01-00-00-12-34-56-79 under directory \3CR17280-72;
b If no such file is found, searches file 0A0A0A01 (0A0A0A01 is the
hexadecimal format of the IP address of the OAP module);
c If no such file is found, searches file 0A0A0A0;
d If no such file is found, searches file 0A0A0A;
e If no such file is found, searches file 0A0A0;
f If no such file is found, searches file 0A0A;
g If no such file is found, searches file 0A0;
h If no such file is found, searches file 0A;
i If no such file is found, searches file 0;
j If no such file is found, searches file default (the default configuration
file).
With the above matching process, you can manage the configuration
files in a hierarchical way based on the actual networking. For example,
the network segment 10.10.0.0/16 uses the configuration file 0A0A; the
network segment 10.10.10.0/24 uses the configuration file 0A0A0A; the
device with the IP address 10.10.10.1/26 uses the configuration file
0A0A0A01.
Configuring the DHCP
Server
To configure the DHCP server, perform the following steps:
1 A DHCP server can assign an IP address for the client dynamically.
2 You are required to configure the IP address of the TFTP server on the
DHCP server for the OAP module to download the configuration file. The
configuration method and priority are as follows:
a If Next server IP address is configured for the DHCP server, it is taken
as the IP address of the TFTP server;
b If no Next server IP address is configured for the DHCP server, but TFTP
Server Name (Option 66) is configured, TFTP Server Name is taken as
the address of the TFTP server;