Sunday, September 24, 2006

INETCFG & NETINFO.CFG

NETINFO.CFG is the file for NIC setup when the server boots up. The file is used by INETCFG and should not be tampered. Each time INETCFG is run, it will first examine the checksum of the file against NETINFO.CHK,which contains the checksum of the current state of NETINFO.CFG. INETCFG aborts if the checksum is notthe same as the one contains in NETINFO.CHK.

To bypass the checksum, close INETCFG and simply delete NETINFO.CHK. NETINFO.CFG can then be modifiedmanually. The next time INETCFG is launched, it will not examine the checksum anymore.

The commented lines in the NETINFO.CFG also contains the information of the NIC configurations. The commented and the uncommented lines will check against one another each time the server boots up. IfNETINFO.CFG has to be changed manually, the commented lines should also be checked and changed too.

During the VLAN setup, B57_2_EII (Slot 10017) is started with SPEED=AUTO and RxBuffers=200 parameters.The two parameters look like default configuration, and are present in the NETINFO.CFG. They preventthe workstations on VLAN to connect to the DHCP server, and have to be removed manually from NETINFO.CFG for the workstations on different VLANs to obtain their IPs.

VLAN startup script doesn't run on NETINFO.CFG. All setup scripts related to VLAN start up should be placed elsewhere, and should be called by AUTOEXEC.NCF.
I've written a startup script (\\BACH\sys\system\StartVLAN.ncf) to serve this purpose.

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