Concerning Apr Clear For The Pc - Canon CXDI-80C Service Manual

Since a separate MAC address is written for the PCA-XIF board, care is required when
proceeding with forced backup booting.
* Since the operating system of the PC remembers the separate MAC address of the PCA-
XIF board, the PC tries communicating with the default MAC address of the PCA-XIF
board while the separate MAC address remains valid, and communication may fail. For
details on how to avoid this kind of situation, refer to "5.2.3 Concerning ARP clear for
the PC."
5.2.3 Concerning ARP clear for the PC
On the PC, open the command prompt, and execute the following command:
arp∆-d∆* (where ∆ is a half-size space)
The above arp command has the effect of clearing the separate MAC address of the PCA-XIF
board stored in the memory of the PC's operating system and of re-initiating the inquiry. Unless
this step is taken, even though the MAC address of the board is switched to the default value by
the forced backup boot operation, the PC will still try communicating to the separate MAC
address used before the switch, and no further communication may be possible by the telnet
terminal or web browser.
* The operating system of the PC stores the IP address and MAC address correspondence
table in the memory, and reset is initiated when the PC is rebooted or there has been no
communication for a certain period of time. This means that it is not always necessary to
execute the ARP command. It is necessary only when communication is to be performed
immediately to a different MAC address using the same IP address. It may also be
necessary after the PCA-XIF board has been replaced when the IP address matches and
communication is to be tried immediately.
In a PC using Windows Vista or a later operating system, an error results when the above
command is simply executed even if the user is the administrator. To execute the command
correctly, the command prompt for executing the arp command must be booted in the "Run as
administrator" mode.
To boot the command prompt in the "Run as administrator" mode, proceed as follows: Select
[All Programs] → [Accessories] → right-click [Command Prompt] → then select "Run as
administrator" on the menu that appears.
4. Repair Guide
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