H3C Technologies H3C S5560 Series Switches - Manual (Page 108)

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IPv4 DNS configuration examples
Static domain name resolution configuration example
Network requirements
As shown in Figure 33 , the device wants to access the host by using an easy-to-remember domain name
rather than an IP address.
Configure static domain name resolution on the device so that the device can use the domain name
host.com to access the host whose IP address is 10.1.1.2.
Figure 33 Network diagram
Configuration procedure
# Configure a mapping between host name host.com and IP address 10.1.1.2.
system-view
[Sysname] ip host host.com 10.1.1.2
# Use the ping host.com command to verify that the device can use static domain name resolution to
resolve domain name host.com into IP address 10.1.1.2.
[Sysname] ping host.com
Ping host.com (10.1.1.2): 56 data bytes, press CTRL_C to break
56 bytes from 10.1.1.2: icmp_seq=0 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=1 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=2 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=3 ttl=255 time=1.000 ms
56 bytes from 10.1.1.2: icmp_seq=4 ttl=255 time=2.000 ms
--- Ping statistics for host.com ---
5 packet(s) transmitted, 5 packet(s) received, 0.0% packet loss
round-trip min/avg/max/std-dev = 1.000/1.200/2.000/0.400 ms
Dynamic domain name resolution configuration example
Network requirements
As shown in Figure 34 , the device wants to do the following:
• Access the host by using an easy-to-remember domain name rather than an IP address.
• Ask the DNS server on the network for an IP address by using dynamic domain name resolution.
The IP address of the DNS server is 2.1.1.2/16 and the DNS server has a com domain, which stores the
mapping between domain name host and IP address 3.1.1.1/16.