H3C Technologies H3C S12500 Series Switches - Manual (Page 98)

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[Switch-ddns-policy-3322.org] url
http://steven:[email protected]/dyndns/update?system=dyndns&hostname=<h>&myip=<
a>
# Set the interval for sending DDNS update requests to 15 minutes.
[Switch-ddns-policy-3322.org] interval 0 0 15
[Switch-ddns-policy-3322.org] quit
# Specify the IP address of the DNS server as 1.1.1.1.
[Switch] dns server 1.1.1.1
# Apply DDNS policy 3322.org to VLAN-interface 2 to enable DDNS update and dynamically update
the mapping between domain name whatever.3322.org and the primary IP address of VLAN-interface
2.
[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ddns apply policy 3322.org fqdn whatever.3322.org
After the preceding configuration is completed, Switch notifies the DNS server of its new domain
name-to-IP address mapping through the DDNS server provided by www.3322.org, whenever the IP
address of Switch changes. Therefore, Switch can always provide Web service at whatever.3322.org.
242B
DDNS configuration example 2
366B
Network requirements
As shown in
747H
Figure 38 , Switch is a Web server with domain name whatever.gicp.cn.
Switch acquires the IP address through DHCP. Through the PeanutHull server, Switch informs the DNS
server of the latest mapping between its domain name and IP address. The IP address of the DNS server
is 1.1.1.1. Switch uses the DNS server to translate www.oray.cn into the corresponding IP address.
Figure 38 Network diagram
367B
Configuration procedure
Before configuring DDNS on Switch, register with username steven and password nevets at
http://www.oray.cn/, add Switch's host name-to-IP address mapping to the DNS server, and make sure
the devices can reach each other.
# Create a DDNS policy named oray.cn and enter its view.
<Switch> system-view