H3C S7500 Series Ethernet Switches Operation Manual

Operation Manual – DNS

H3C S7500 Series Ethernet Switches Chapter 1

DNS Configuration

1-4

 Note:

You can configure up to 6 DNS servers and 10 DNS suffixes.

1.3.2 DNS Configuration Example

I. Network requirements

As shown in Figure 1-2, a switch is used as a DNS client with dynamic DNS resolution.

It allows you to access host with an IP address of 3.1.1.1/16. The DNS server IP

address is 2.1.1.2/16. The DNS suffixes "com" and "net" are configured.

II. Network diagram

2. 1. 1.2 /16

2. 1.1. 1

DNS server

Switch

DNS client

1. 1.1/16

host.com

IP network

/16

Host

3. 1.1.1/ 1 6

Figure 1-2 Network diagram for dynamic DNS resolutio

III. Configuration procedure

 Note:

First suppose the switch and host 1 are reachable to each other, the DNS server works

normally, and a mapping entry from host to IP address 3.1.1.1/16 exists on the DNS

server.

# Enable dynamic DNS resolution.

<H3C> system-view

[H3C] dns resolve

# Configure the DNS server IP address 2.1.1.2.

[H3C] dns server 2.1.1.2

# Configure net as a DNS suffix.

[H3C] dns domain net

# Configure com as a DNS suffix.