H3C Technologies H3C S12500 Series Switches - Manual (Page 90)

77
Figure 34 Adding a mapping between domain name and IP address
2. Configure the DNS client:
# Specify the DNS server 2.1.1.2.
system-view
[Sysname] dns server 2.1.1.2
# Configure com as the name suffix.
[Sysname] dns domain com
360B
Verifying the configuration
# Use the ping host command on the device to verify that the communication between the device and the
host is normal and that the translated destination IP address is 3.1.1.1.
[Sysname] ping host
PING host.com (3.1.1.1): 56 data bytes
56 bytes from 3.1.1.1: icmp_seq=0 ttl=255 time=1.000 ms
56 bytes from 3.1.1.1: icmp_seq=1 ttl=255 time=1.000 ms
56 bytes from 3.1.1.1: icmp_seq=2 ttl=255 time=1.000 ms
56 bytes from 3.1.1.1: icmp_seq=3 ttl=255 time=1.000 ms
56 bytes from 3.1.1.1: icmp_seq=4 ttl=255 time=2.000 ms
--- host.com ping statistics ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/stddev = 1.000/1.200/2.000/0.400 ms
235B
DNS proxy configuration example
361B
Network requirements
When the IP address of the DNS server changes, you must configure the new IP address of the DNS
server on each device on the LAN. To simplify network management, you can use the DNS proxy
function.