Example for Configuring Static DNS

This section describes how to configure static DNS.

Networking Requirements

As shown in Figure 1, Device A frequently uses the domain name "host.com" to visit the host. To improve the efficiency of domain name resolution, you can establish a static mapping between the domain name "host.com" and IP address 10.100.1.2 in the static domain name resolution table of Device A.

Figure 1 Configuring static DNS

Configuration Roadmap

The configuration roadmap is as follows:

Establish a static mapping between the domain name "host.com" and IP address 10.100.1.2 on Device A.

Data Preparation

To complete the configuration, you need the following data:

IP addresses of Device A and the host
Domain name of the host

Procedure

Configure a static mapping between the domain name "host.com" and IP address 10.100.1.2.

<HUAWEI> system-view
[~HUAWEI]sysname DeviceA
[*HUAWEI]commit
[~DeviceA] ip host host.com 10.100.1.2
[*DeviceA] commit

Verify the configuration.

# Run the ping host.com command on Device A. The host can be pinged. The destination IP address for the ping operation is 10.100.1.2.

<DeviceA> ping host.com
  ping host.com (10.100.1.2):56 data bytes, press CTRL_C to break
     Reply from 10.100.1.2: bytes=56 Sequence=1 ttl=128 time=1 ms
     Reply from 10.100.1.2: bytes=56 Sequence=2 ttl=128 time=4 ms
     Reply from 10.100.1.2: bytes=56 Sequence=3 ttl=128 time=3 ms
     Reply from 10.100.1.2: bytes=56 Sequence=4 ttl=128 time=2 ms
     Reply from 10.100.1.2: bytes=56 Sequence=5 ttl=128 time=3 ms

    --- host.com ping statistics ---
     5 packet(s) transmitted
     5 packet(s) received
     0.00% packet loss
     round-trip min/avg/max = 1/2/4 ms

# Run the display ip host command on Device A to check static DNS entry information, including mappings between domain names and IP addresses.

<DeviceA> display ip host
Host                 Age        Flags  Address
host.com             0          static 10.100.1.2

Configuration Files

Device A configuration file

#
 sysname DeviceA
#
 ip host host.com 10.100.1.2
#
return