H3C Technologies H3C S5560 Series Switches - Manual (Page 125)

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Before you apply a DDNS policy to an interface, complete the following tasks:
• Specify the primary IP address of the interface and make sure the DDNS server and the interface
can reach each other.
• Configure static or dynamic domain name resolution to translate the domain name of the DDNS
server into the IPv4 address. For more information, see " Configuring the IPv4 DNS client ."
To apply the DDNS policy to an interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Apply the DDNS policy to the
interface to update the mapping
between the specified FQDN and
the primary IP address of the
interface, and enable DDNS
update.
ddns apply policy policy-name
[ fqdn domain-name ]
By default, no DDNS policy is
applied to the interface, no
FQDN is specified for update,
and DDNS update is disabled.
The fqdn domain-name option
must be specified for all DDNS
servers except the PeanutHull
DDNS server.
NOTE:
If no FQDN is specified for the PeanutHull DDNS server, the DDNS server updates all domain names of the
DDNS client account. If an FQDN is specified, the DDNS server updates only the mapping between the
specified FQDN and the primary IP address.
Setting the DSCP value for outgoing DDNS packets
The DSCP value of a packet specifies the priority level of the packet and affects the transmission priority
of the packet. A bigger DSCP value represents a higher priority.
To specify the DSCP value for outgoing DDNS packets:
Step Command Remarks
1. Enter system view. system-view N/A
2. Specify the DSCP value
for outgoing DDNS
packets.
ddns dscp dscp-value
By default, the DSCP value for
outgoing DDNS packets is 0.
Displaying DDNS
Execute display commands in any view.
Task Command
Display information about the DDNS policy. display ddns policy [ policy-name ]