Administration: File Management
DHCP Auto Configuration
51 Cisco Small Business 300 Series Managed Switch Administration Guide
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extension are downloaded using SCP, and files with the other extensions
are downloaded using TFTP.
•TFTP Only—The download is done through TFTP regardless of the file
extension of the configuration file name.
•SCP Only—The download is done through SCP (over SSH) regardless of
the file extension of the configuration file name.
SSH Client Authentication Parameters
By default, remote SSH server authentication is disabled, so that the device
accepts any remote SSH server out of the box. You can enable remote SSH server
authentication to only allow connections from servers found in the trusted server
list.
SSH Client Authentication parameters are required to access the SSH server by
the client (which is the device). The default SSH Client authentication parameters
are:
•SSH Authentication method: by username/password
•SSH username: anonymous
•SSH password: anonymous
NOTE The SSH Client authentication parameters can also be used when downloading a
file for manual download (a download that is not performed through the DHCP Auto
Configuration feature).
Auto Configuration Process
When the Auto Configuration process is triggered, the following sequence of
events occurs:
•The DHCP server is accessed to acquire the TFTP/SCP server name/
address and configuration file name/path (DHCPv4 options: 66,150, and 67,
DHCPv6 options: 59 and 60).
•If a server and configuration file options were not supplied by the DHCP
server, then:
-For DHCPv4: The user-defined, backup configuration file name is used.
-For DHCPv6: The process is halted.