H3C Technologies H3C SecPath F1000-E - Manual (Page 259)

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The SecPath acquires its IP address through DHCP. Through DDNS service provided by www.3322.org,
the SecPath 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. The SecPath uses the DNS server to translate www.3322.org
into the corresponding IP address.
Figure 144 Network diagram
Configuration procedure
NOTE:
Before configuring DDNS on the SecPath, register at http://www.3322.org/, add firewall's host
name-to-IP address mapping to the DNS server, and make sure that the devices are reachable to each
other.
Enabling dynamic domain name resolution
1. Select Network > DNS > Dynamic from the navigation tree, and performs the following operations,
as shown in Figure 145 .
SecPath
DDNS client
www.3322.org
DDNS server
DNS server
IP network
GE0/1
1.1.1.1