Canon imageRUNNER ADVANCE 4551i Service Manual page 916

Settings] > [PING Command], and enter the IP
address.
• If the display shows "Response from the host", the
IP address specified on the host machine is correct.
• If the display shows "No response from the host",
go to the next step for another checking.
NOTE:
When entering an address by manual operation, set the
Subnet Mask according to the instructions of the user
administrator.
■ Checking Network Function on the
Main Controller
Check with the loopback address:
1. Select: [Settings/Registration] > [Preferences] >
[Network] > [TCP/IP Settings] > [IPv4 Settings] >
[PING Command], and enter the IP address
"127.0.0.1" with the numeric keypad and press the
Execute key.
• If the display shows "Response from the host", the
network of the main controller is properly
functioning.
• If the display shows "No response from the host",
the network function of the main controller is faulty.
2. Replace with a main controller that works properly,
and the check connection.
903
9. Installation