Dynamic Domain Name Resolution Configuration Example - 3Com 4210 9-Port Configuration Manual

Dynamic Domain Name Resolution Configuration Example

Network requirements
As shown in Figure
access the host at 3.1.1.1/16 through its domain name host. The DNS server has the IP address
2.1.1.2/16. The DNS suffix is com.
Network diagram
Figure 1-3 Network diagram for dynamic DNS configuration
Configuration procedure
Before doing the following configuration, make sure that:
The routes between the DNS server, Switch, and Host are reachable.
Necessary configurations are done on the devices. For the IP addresses of the interfaces, see the
figure above.
There is a mapping between domain name host and IP address 3.1.1.1/16 on the DNS server.
The DNS server works normally.
# Enable dynamic domain name resolution.
<Sysname> system-view
[Sysname] dns resolve
# Configure the IP address 2.1.1.2 for the DNS server.
[Sysname] dns server 2.1.1.2
# Configure com as the DNS suffix
[Sysname] dns domain com
Execute the ping host command on Switch to verify that the communication between Switch and Host
is normal and that the corresponding IP address is 3.1.1.1.
[Sysname] ping host
Trying DNS server (2.1.1.2)
PING host.com (3.1.1.1): 56
Reply from 3.1.1.1: bytes=56 Sequence=1 ttl=125 time=4 ms
1-3, the switch serving as a DNS client uses dynamic domain name resolution to
data bytes, press CTRL_C to break
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