HP VPN Firewall Appliances Network Management Configuration Guide

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DDNS configuration example 1

Network requirements

As shown in Figure 156, Firewall is a Web server with the domain name whatever.3322.org.

Firewall acquires the IP address through DHCP. Through DDNS service provided by www.3322.org,

Firewall 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. Firewall uses the DNS server to translate www.3322.org into

the corresponding IP address.

Figure 156 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 that the devices are reachable to each other.

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

<Firewall> system-view

[Firewall] ddns policy 3322.org

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

[Firewall-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.

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

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

# Enable dynamic domain name resolution on Router.

[Firewall] dns resolve

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

[Firewall] 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

GigabitEthernet 0/1.

Firewall

DDNS client

www.3322.org

DDNS server

DNS server

IP network

GE0/1

1.1.1.1