3Com Switch 8800 Advanced Software V5 Configuration Guide

748 CHAPTER 52: DNS CONFIGURATION
DNS Configuration
Example
Static DNS
Configuration Example
Network requirements
Device uses the static domain name resolution to access Host with IP address
10.1.1.2 through domain name host.com.
Network diagram
Figure 219 Network diagram for static domain name resolution
Configuration procedure
# Configure a mapping between host name host.com and IP address 10.1.1.2.
<Sysname> system-view
[Sysname] ip host host.com 10.1.1.2
# Execute the ping host.com command to verify that the device can use the static
domain name resolution to get the IP address 10.1.1.2 corresponding to
host.com.
[Sysname] ping host.com
PING host.com (10.1.1.2):
56 data bytes, press CTRL_C to break
Reply from 10.1.1.2: bytes=56 Sequence=1 ttl=255 time=1 ms
Reply from 10.1.1.2: bytes=56 Sequence=2 ttl=255 time=4 ms
Reply from 10.1.1.2: bytes=56 Sequence=3 ttl=255 time=3 ms
Reply from 10.1.1.2: bytes=56 Sequence=4 ttl=255 time=2 ms
Reply from 10.1.1.2: bytes=56 Sequence=5 ttl=255 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
Dynamic DNS
Configuration Example
Network requirements
■ The IP address of the DNS server is 2.1.1.2/16 and the DNS suffix is com.
■ Device serving as a DNS client uses the dynamic domain name resolution and
DNS suffix to access the host with the domain name being host.com and the IP
address 3.1.1.1/16.
Clear the information in the
dynamic domain name cache
reset dns dynamic-host Available in user view
To do... Use the command... Remarks
10.1 .1. 1/ 24
10 .1 .1.2/ 24
host.com
Device Host