3com 5500G ユーザーズマニュアル

C

HAPTER

 37: DNS C

ONFIGURATION

 G

UIDE

0.00% packet loss

round-trip min/avg/max = 2/3/5 ms 

#

ip host host.com 10.1.1.2 

Domain Name System (DNS) is a distributed database used by TCP/IP applications 
to translate domain names into corresponding IP addresses. With DNS, you can 
use easy-to-remember domain names in some applications and let the DNS server 
translate them into correct IP addresses.

Figure 115   Network diagram for dynamic domain name resolution configuration

 

■

Switch serves as a DNS client to access the host at 3.1.1.1/16 through domain 
name host.

■

The DNS server has the IP address 2.1.1.2/16. The domain name suffix is com.

# Enable dynamic domain name resolution.

<3Com> system-view

[3Com] dns resolve 

# Specify the DNS server 2.1.1.2.

[3Com] dns server 2.1.1.2 

# Configure com as the DNS suffix.

[3Com] dns domain com 

Execute the ping host command on Switch. The ping is successful and the 
corresponding IP address is 3.1.1.1.

[3Com] ping host

Trying DNS server (2.1.1.2)

2.1.1.2 /16

2.1.1.1/16

Switch

1.1.1.1 /16

3.1.1 .1/16

host.com

IP network

Host

Switch 5500

Release V03.02.04 

All versions

Switch 5500G

Release V03.02.04 

All versions

Switch 4500

Release V03.03.00 

All versions