Connect Tech CTIM-00044 user manual How the Blue Heat/Net Sync Boots Up, Dhcp Setup

Connect Tech Blue Heat/Net Sync User Manual

DHCP Setup

In many modern networks IP numbers are not static but are automatically assigned by a DHCP server and can change over time or on each power up.

DHCP must be enabled on the Blue Heat/Net Sync because it is shipped to use a default static IP (192.168.42.1)

Using SCM

Log onto the Blue Heat/Net Sync. The SCM does not require a login. The default password for the SCM is password.

Enter net dhcp=yes. This will turn on DHCP on the unit. Enter net dns_ip=3. This will set the DNS IP to 198.182.196.3

Enter save. This will save the configuration we just set to flash memory. Enter exit. The unit will reboot using the new settings.

How the Blue Heat/Net Sync Boots Up

Each time the Blue Heat/Net Sync is powered-up or rebooted with an appropriate command, a certain sequence of software execution occurs.

The Booter runs from flash memory first. Its job is to perform the following: Setup the embedded processor

Validate at least one of the redundant Loaders (via a CRC check). Load a validated Loader into RAM memory.

Run the Loader.

If the Booter discovers that both Loader programs are defective (erased or faulty CRC calculation), an error code is displayed on the LEDs of the Blue Heat/Net Sync.

The Loader runs from RAM memory. Its job is to perform the following:

oUpdate any required CDS items.

oDetermine if the SCM application will be entered. This is accomplished by scanning the designated serial ports, for a period of time, to determine if a correct password is entered. If the password is found the SCM application will be entered. (see the SCM Command Reference command for details of these

settings).

oLocate, load and run an Operating System (uClinux). (As shown in the following boot-up flow chart).

oRun the main Operating System (uClinux).

oOperating System launches port personality default ctid

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