4000 Router Series Layer 3 - IP Services Configuration Guide

109

Figure 47 Network diagram

Configuration procedure

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

http://www.oray.cn/, add Router'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.

<Router> system-view

[Router] ddns policy oray.cn

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

nevets.

[Router-ddns-policy-oray.cn] url oray://phservice2.oray.net

[Router-ddns-policy-oray.cn] username steven

[Router-ddns-policy-oray.cn] password simple nevets

# Set the DDNS update request interval to 12 minutes.

[Router-ddns-policy-oray.cn] interval 0 0 12

[Router-ddns-policy-oray.cn] quit

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

[Router] dns server 1.1.1.1

# Apply the DDNS policy to Ethernet 1/1 to enable DDNS update and dynamically update the mapping

between whatever.gicp.cn and the primary IP address of Ethernet 1/1.

[Router] interface ethernet 1/1

[Router-Ethernet1/1] ddns apply policy oray.cn fqdn whatever.gicp.cn

After the configuration is completed, Router notifies the DNS server of its new domain name-to-IP address

mapping through the PeanutHull server, whenever the IP address of Router changes. Therefore, Router

can always provide Web service at whatever.gicp.cn.

Router

DDNS client

www.oray.cn

DDNS server

DNS server

IP network

Eth1/1

1.1.1.1