Basic Configuration

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Web – If the address assigned by DHCP is no longer functioning, you will not be
able to renew the IP settings via the web interface. You can only restart DHCP
service via the web interface if the current address is still available.
CLI – Enter the following command to restart DHCP service.
Managing Firmware
You can upload/download firmware to or from a TFTP server. By saving runtime
code to a file on a TFTP server, that file can later be downloaded to the switch to
restore operation. You can also set the switch to use new firmware without
overwriting the previous version. You must specify the method of file transfer, along
with the file type and file names as required. The switch also allows a runtime code
file to be copied to or from another switch unit in the stack.
Command Attributes
•File Transfer Method – The firmware copy operation includes these opti ons:
- file to file – Copies a file within the switc h directory, assigning it a new name.
- file to tftp – Copies a file from the switch to a TFTP se rver.
- tftp to file – Copies a file from a TFTP server to the switch .
- file to unit – Copies a file from this switch to another unit in the stack.
- unit to file – Copies a file from another unit in the stack to this switch.
•TFTP Server IP Address – The IP address of a TFTP se rver.
•File Type – Specify opcode (operational code) to copy firmware.
•File Name –
The file name should not contain slashes (\ or /),
the leading letter of
the file name should not be a period (.), and the m aximum length for file names on
the TFTP server is 127 characters or 31 characters for files on the switch.
(Valid characters: A-Z, a-z, 0- 9, “.”, “-”, “_”)
•Source/Destination Unit – Specifies the switch stack unit number.
Note: Up to two copies of the system software (i.e., the runtime firmware) can be stored
in the file directory on the switch. The currently designated startup version of this
file cannot be deleted.
Console#ip dhcp restart 4-186
Console#