R2511-HP MSR Router Series Layer 3 - IP Services Configuration Guide(V5)

Figure 43 Network diagram

Configuration procedure

Before configuring DDNS on Router, register with username steven and password nevets at

http://www.3322.org/, add Router's host name-to-IP address mapping to the DNS server, and make

sure the devices are reachable to each other.

# Create a DDNS policy named 3322.org, and enter its view.

<Router> system-view

[Router] ddns policy 3322.org

# Specify for DDNS update requests the URL address with the login ID steven and password nevets.

[Router-ddns-policy-3322.org] url

http://steven:nevets@members.3322.org/dyndns/update?system=dyndns&hostname=<h>&myip=<

# Set the interval for sending DDNS update requests to 15 minutes.

[Router-ddns-policy-3322.org] interval 0 0 15

[Router-ddns-policy-3322.org] quit

# Enable dynamic domain name resolution on Router.

[Router] dns resolve

# Specify the IP address of the DNS server as 1.1.1.1.

[Router] dns server 1.1.1.1

# Apply DDNS policy 3322.org to interface Ethernet 1/1 to enable DDNS update and dynamically

update the mapping between domain name whatever.3322.org and the primary IP address of Ethernet

1/1.

[Router] interface ethernet 1/1

[Router-Ethernet1/1] ddns apply policy 3322.org fqdn whatever.3322.org

After the preceding configuration is completed, Router 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 Router changes. Therefore, Router can always provide Web service at whatever.3322.org.

Router

DDNS client

www.3322.org

DDNS server

DNS server

IP network

Eth1/1

1.1.1.1