H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 519)

55-9
DNS Proxy Configuration Example
Network requirements
z
Specify AC A as the DNS server of AC B (the DNS client).
z
AC A acts as a DNS proxy. The IP address of the real DNS server is 4.1.1.1.
z
AC B implements domain name resolution through AC A.
Network diagram
Figure 55-8 Network diagram for DNS proxy
Configuration procedure
Before performing the following configuration, assume that Switch A, the DNS server, and the host are
reachable to each other and the IP addresses of the interfaces are configured as shown in
Figure 55-8 .
1) Configure the DNS server
This configuration may vary with different DNS servers. When a Windows 2000 server acts as the DNS
server, refer to
Dynamic Domain Name Resolution Configuration Example for related configuration
information.
2) Configure the DNS proxy
# Specify the DNS server 4.1.1.1.
system-view
[AC A] dns server 4.1.1.1
# Enable DNS proxy.
[AC A] dns proxy enable
3) Configure the DNS client
# Enable the domain name resolution function.
system-view
[AC B] dns resolve
# Specify the DNS server 2.1.1.2.