MG-IP TDM Over IP Gateway Reference Manual
25
DHCP Field/Option
Behavior if
Missing/Incorrect
DHCP Option
Comments
TFTP server IP
This field is optional
TFTP server name -
(option 66). This
attribute is expected
to be received in the
“siaddr” DHCP field
If the configuration file
name was received, the
TFTP server IP should
be received as well,
otherwise the system
will send swerr +
unsolicited messages
(no Syslog) and return
to DHCP discovery
Config file path
This field is optional
Bootfile name
(option 67). This
attribute is epxected
to be received in the
“file” DHCP field
The file name must end
with a TXT extension
for CLI scripts or TLV
files.
If the file extension is
not supported, or if the
TFTP download of the
file fails, the system will
send a Syslog message
and reboot.
In case of an error in file
processing, provisioning
will end with an error
indication (but with no
reboot)
Syslog server
This field is optional
Log server option
(option 7)
If this field is set,
Syslog messages
indicating errors or
success will be sent to it
during the provisioning
process.
Server identifier
This field is optional
Server identifier
(option 54)
Reboot due to problems associated with DHCP or DHCP option processing will
occur after a delay of a few seconds, and a periodic error message (unsolicited)
will be displayed with a description of the error and the time left until the
imminent reset.
Configuring the DHCP Server
To support the above options, the DHCP server should be configured as follows:
Router Option - specifies default gateway IP address (option 3)
Log Server Option - specifies Syslog server ip address (option 7)
Server Identifier - specifies DHCP server IP address (option 54)
Subnet Mask - specifies host’s subnet mask (option 1)
Bootfile name (option 67)
TFTP server name - specifies the TFTP IP address (option 66)