F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

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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 155 Network diagram

1285BConfiguration 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] interface gigabitethernet 0/1

[Firewall-GigabitEthernet0/1] ddns apply policy 3322.org fqdn whatever.3322.org

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

Firewall

DDNS client

www.3322.org

DDNS server

DNS server

IP network

GE0/1

1.1.1.1