HP 5920 Series Configuration Manual page 94

As shown in
• Specify Device A as the DNS server of Device B (the DNS client). Device A acts as a DNS proxy.
The IP address of the real DNS server is 4.1.1.1.
Configure the IP address of the DNS proxy on Device B. DNS requests of Device B are forwarded
•
to the real DNS server through the DNS proxy.
Figure 37 Network diagram
Configuration procedure
Before performing the following configuration, assume that Device A, the DNS server, and the host can
reach each other and the IP addresses of the interfaces are configured as shown in
Configure the DNS server:
1.
This configuration may vary with DNS servers. When a PC running Windows Server 2000 acts as
the DNS server, see
information.
Configure the DNS proxy:
2.
# Specify the DNS server 4.1.1.1.
<DeviceA> system-view
[DeviceA] dns server 4.1.1.1
# Enable DNS proxy.
[DeviceA] dns proxy enable
Configure the DNS client:
3.
<DeviceB> system-view
# Specify the DNS server 2.1.1.2.
[DeviceB] dns server 2.1.1.2
Verifying the configuration
# Use the ping host.com command on Device B to verify the connection between the device and the host
is normal and that the translated destination IP address is 3.1.1.1.
[DeviceB] ping host.com
PING host.com (3.1.1.1): 56 data bytes
56 bytes from 3.1.1.1: icmp_seq=0 ttl=255 time=1.000 ms
56 bytes from 3.1.1.1: icmp_seq=1 ttl=255 time=1.000 ms
Figure 37:
"Dynamic domain name resolution configuration
85
Figure 37.
example" for configuration