3Com Switch 7750 Configuration Guide

834 CHAPTER 76: DNS CONFIGURATION
Network diagram
Figure 214 Network diagram for dynamic DNS resolution
Configuration procedure
n
Before doing the following configuration, suppose the route between Switch and
Host is reachable, the DNS server works normally, and a mapping entry from Host
to IP address 3.1.1.1/16 exists on the DNS server.
# Enable dynamic DNS resolution.
<SW7750> system-view
[SW7750] dns resolve
# Configure the DNS server IP address 2.1.1.2.
[SW7750] dns server 2.1.1.2
# Configure net as a DNS suffix.
[SW7750] dns domain net
# Configure com as a DNS suffix.
[SW7750] dns domain com
Ping Host on Switch to verify the configuration and the corresponding IP address
(it should be 3.1.1.1).
Displaying and
Maintaining DNS
After the above configuration, you can execute the display command in any view
to view the DNS configuration and running information to verify your
configuration.
You can execute the reset command in user view to clear the dynamic DNS cache.
2.1.1.2/16
2.1.1.1/16
DNS server
Switch
DNS client
1.1.1.1/16
3.1.1.1/16
host.com
IP network
Host