Huawei AR150 series - Configuring DNS Proxy or Relay; Establishing the Configuration Task

# Run the display dns dynamic-host command to view dynamic DNS entries saved in the
domain name cache.
<Huawei> display dns dynamic-host
Host TTL Type Address(es)
sipx.autosrv.com 114 IP
192.168.2.18
sip.autosrv.com 237 IP
192.168.2.61
sip.autonaptr.com 117 IP
192.168.2.19
_sip._tcp.autosrv.com 55 SRV 0 0 0 sipx.autosrv.com
0 0 0 sip.autosrv.com
autonaptr.com 0 NAPTR 101 10 A SIP+D2T sip.autona
4.4 Configuring DNS Proxy or Relay
This section describes how to configure DNS proxy or relay.
4.4.1 Establishing the Configuration Task
Before configuring DNS proxy or relay, familiarize yourself with the applicable environment,
complete the pre-configuration tasks, and obtain the data required for the configuration. This
will help you complete the configuration task quickly and accurately.
Applicable Environment
If no DNS server is deployed on a LAN, a DNS client on the LAN can connect to an external
DNS server through the AR150/200 enabled with DNS proxy or relay. After the external DNS
server translates the domain name of the DNS client to an IP address, the DNS client can access
the Internet.
DNS proxy or relay reduces network management costs. Changing the IP address of the DNS
server requires that you change only the configuration on the DNS proxy or relay.
Pre-configuration Tasks
Before configuring DNS proxy or relay, complete the following tasks:
l Connecting interfaces and setting physical parameters for the interfaces to ensure that the
physical layer status of the interfaces is Up
l Setting link layer protocol parameters for interfaces to ensure that the link layer protocol
status on the interfaces is Up
l Configuring a DNS server
l Configuring routes between the local routing device and the DNS client and between the
local routing device and the DNS server
Data Preparation
No.
Data
1 IP address of a DNS server
2 (Optional) IP address in response messages for DNS spoofing
Huawei AR150&200 Series Enterprise Routers
Configuration Guide - IP Service 4 DNS Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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