Symbol Series 3800, Reference Manual

Page: 121 / 138

E-9
Spectrum24 Network and Flash Disk Utilities
BOOTP
The BOOTP program gets the IP address and sets up communications parameters for use by
other parts of the system. How the program works depends on which boot mode setting was
selected in CFG24, as follows:
!
If “Boot” was selected, a TCP/IP BOOTP request is broadcasted to the network.
Boot servers on the network configured to respond send a response. The terminal
accepts the first valid response received, which contains a terminal IP address and
other network parameters which over-ride any parameters entered through CFG24.
!
If “DHCP” was selected, a similar process to the one described for BOOTP occurs,
only using the Dynamic Host Configuration Protocol.
!
If “Manual entry” was selected, no configuration messages are broadcast to the
network and the current network parameters, saved in the radio flash, are used for
connecting to the network.
BOOTP uses the text message file MSG.MSG, read from the same drive and directory as the
executable, BOOTP.COM. Corrupted screens are an indication that the message file was not
found.
Description
BOOTP is responsible for updating NET.CFG, a standard file used by the TCP/IP software
to set communications parameters. In NET.CFG, BOOTP includes any communication
parameters returned by a server in the BOOTP or DHCP processes, or sets these parameters
as configured through CFG24.
The priority of the various sources of communication parameters is as follows:
1. Any value returned by the BOOTP or DHCP process.
2. Any value entered through CFG24.
3. A previous value used and saved in the radio flash area.
4. The default value for that parameter, located in the original NET.CFG supplied with
the system software.