To the main control Board upgrade boot to boot interface, enter boot, to see if the boot IP and mask and computer IP (SEVERIP) in a network segment, if not, use the setenv command to set the IP address and mask. You can then enter Upboot to enable the upgrade.
After entering the app, enter the sh int command to view the app side IP and mask, and discover that starting with 192, we are currently using 172. If you do not modify the app code upgrade is not convenient, you must be in the same network segment to communicate, upgrade. In the Web interface first open 192 IP address, enter after the Web interface System information can modify the IP and mask, here we change it to the 172 we want to start, Of course, before the change to use the computer to ping the current LAN is not back to use the IP address.
(four) The main control board to change the IP, upgrade app,boot