4000 Router Series Layer 3 - IP Services Configuration Guide

Figure 37 Network diagram

Configuration procedure

Before performing the following configuration, ,make sure Device A, the DNS server, and the host can

reach each other and the IPv6 addresses of the interfaces are configured as shown in Figure 37.

1. Conf

igure the DNS server:

The configuration might vary with DNS servers. When a PC running Windows Server 2000 acts

as the DNS server, see "Dynamic domain name resolution c

onfiguration example" for

configuration information.

2. Configure the DNS proxy:

# 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

3. Configure the DNS client:

<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, press escape sequence to break

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

56 bytes from 3.1.1.1: icmp_seq=2 ttl=255 time=1.000 ms

56 bytes from 3.1.1.1: icmp_seq=3 ttl=255 time=1.000 ms

56 bytes from 3.1.1.1: 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