BelAir100SN User Guide
BelAir100SN Auto-configuration
May 31, 2010
Confidential
Document Number BDTM11001-A01 Released
BelAir100SN Auto-configuration
With auto-configuration, the BelAir100SN can automatically obtain a script file
after it powers up. The unit then configures itself based on the content of the
file. Auto-configuration minimizes the amount of manual intervention required
to pre-configure the unit before you install it. To create a valid script file, refer
to the guidelines listed in
“Creating and Using Script Files” on page 54
.
The following sections describe the different ways you can automatically supply
a script file to the BelAir100SN:
•
•
“Configuration Download Profile” on page 66
Both methods are independent, but can be used in conjunction with each other.
For example, you can use DHCP options to download a script file that
configures the configuration download profile. You then use the configuration
download profile to download a second script file for the rest of the
BelAir100SN.
DHCP Options
With this method, the BelAir100SN uses the exchange of DHCP packets with a
DHCP server as a means of exchanging information during startup. The
BelAir100SN uses DHCP Options 12, 60, 55 and 43 to retrieve extra
information during startup and to supply the DHCP server with information
about itself.
The BelAir100SN provides the system identifier host name through DHCP
Option 12 and the vendor class identifier
BelAir Networks
through DHCP
Option 60.
Through DHCP Option 55, the DHCP server provides the BelAir100SN with
the following parameters in addition to basic IP parameters (address, subnet
mask and default route) described in
“Configuring Dynamic IP Addressing” on
• TFTP server IP address and script file. These parameters cause a TFTP
session to be created and the script file to be downloaded and executed
during startup.
• DNS domain name. Only one domain name is valid at any one time per
BelAir100SN and not per interface. See
