HPE FlexFabric 5950 Series Command Reference Manual page 324

cipher: Specifies a password in encrypted form.
simple: Specifies a password in plaintext form. For security purposes, the password specified in
plaintext form will be stored in encrypted form.
string: Specifies the password. Its plaintext form is a case-sensitive string of 1 to 32 characters. Its
encrypted form is a case-sensitive string of 1 to 73 characters. Do not specify this argument if a
password is not required for accessing the URL of the remote backup file.
Usage guidelines
This command automatically creates the file if you specify a nonexistent file.
With this command executed, the DHCPv6 snooping device backs up its snooping entries
immediately and runs auto backup. The snooping device, by default, waits 300 seconds after a
DHCPv6 snooping entry change to update the backup file. You can use the ipv6 dhcp snooping
binding database update interval command to change the waiting time. If no DHCPv6 snooping
entry changes, the backup file is not updated.
As a best practice, back up the DHCPv6 snooping entries to a remote file. If you use the local storage
medium, the frequent erasing and writing might damage the medium and then cause the DHCPv6
snooping device malfunction.
When the file is on a remote device, follow these restrictions and guidelines to specify the URL,
username, and password:
•
If the file is on an FTP server, enter URL in the format of ftp://server address:port/file path,
where the port number is optional.
•
If the file is on a TFTP server, enter URL in the format of tftp://server address:port/file path,
where the port number is optional.
•
The username and password must be the same as those configured on the FTP server. If the
server authenticates only the username, the password can be omitted.
•
If the IP address of the server is an IPv6 address, enclose the address in a pair of brackets, for
example, ftp://[1::1]/database.dhcp.
•
You can also specify the DNS domain name for the server address field, for example,
ftp://company/database.dhcp.
Examples
# Configure the DHCPv6 snooping device to back up DHCPv6 snooping entries to the file
database.dhcp.
<Sysname> system-view
[Sysname] ipv6 dhcp snooping binding database filename database.dhcp
# Configure the DHCPv6 snooping device to back up DHCPv6 snooping entries to the file
database.dhcp in the working directory of the FTP server at 1::1.
<Sysname> system-view
[Sysname] ipv6 dhcp snooping binding database filename url ftp://[1::1]/database.dhcp
username 1 password simple 1
# Configure the DHCPv6 snooping device to back up DHCPv6 snooping entries to the file
database.dhcp in the working directory of the TFTP server at 2::1.
<Sysname> system-view
[Sysname] ipv6 dhcp snooping binding database filename tftp://[2::1]/database.dhcp
Related commands
ipv6 dhcp snooping binding database update interval
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