H3C Technologies H3C S3100 Series Switches - Manual (Page 625)

Operation Manual – DNS
H3C S3100-52P Ethernet Switch Chapter 1 DNS Configuration
1-4
1.3.2 DNS Configuration Example
I. Network requirements
As shown in Figure 1-2, a device is used as a DNS Client with dynamic domain name
resolution to visit host 1 with IP address 3.1.1.1/16. The DNS Server has IP address
2.1.1.2/16. The DNS suffixes are com and net.
II. Network diagram
2.1.1.2/16
host1
3.1.1.1/16
DNS Client DNS Server
Internet
2.1.1.1/16 1.1.1.1/16
2.1.1.2/16
host1
3.1.1.1/16
DNS Client DNS Server
Internet
2.1.1.1/16 1.1.1.1/16
Figure 1-2
Network diagram for dynamic domain name resolution
III. Configuration procedure
Note:
Before doing the following configuration, make sure the route between the device and
host 1 is reachable, and configurations are done on both devices. The IP address of
each interface is shown on Figure 1-2. Make sure the DNS Server works well and has a
mapping between host 1 and IP address 3.1.1.1/16.
# Enable dynamic domain name resolution.
system-view
[H3C] dns resolve
# Configure IP address 2.1.1.2 to the DNS Server
[H3C] dns server 2.1.1.2
# Configure net as the DNS suffix
[H3C] dns domain net
# Configure com as the DNS suffix
[H3C] dns domain com
Ping host 1 to verify the configuration and the corresponding IP address should be
3.1.1.1.