AR150/200 Functioning as a DHCP/BOOTP Client
The AR150/200 supports the DHCP/BOOTP client function. After a Layer 3 interface of the
AR150/200 is configured as a DHCP/BOOTP client, the interface can dynamically obtain an IP
address and other configurations from a DHCP server by using the DHCP/BOOTP protocol.
This facilitates configuration and centralized management.
DHCP Rate Limit
The AR150/200 supports DHCP rate limit. This protects the DHCP protocol stack against attacks
by sending a large number of DHCP packets.
6.3 Configuring a DHCP Server Based on a Global Address
Pool
After a DHCP server based on a global address pool is configured, all online users of the server
can obtain IP addresses from this address pool.
6.3.1 Establishing the Configuration Task
Before configuring a DHCP server based on a global address pool, 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
When the AR150/200 functions as a DHCP server, you can configure a global address pool on
the AR150/200. The AR150/200 then allocates IP addresses and configuration parameters to
clients from the global address pool.
The global address pool applies to the following scenarios:
DHCP clients and the AR150/200 used as a DHCP server are on the same network segment.
DHCP clients can obtain IP addresses and other configuration parameters from a global address
pool. Figure 6-1 shows the networking.
Figure 6-1 Application scenario 1 of a global address pool
DHCP clients and the AR150/200 functioning as a DHCP server are on different network
segments. DHCP clients can obtain IP addresses and other configuration parameters from a
global address pool through a DHCP relay agent. Figure 6-2 shows the networking.
Huawei AR150&200 Series Enterprise Routers
Configuration Guide - IP Service 6 DHCP Configuration
Issue 02 (2012-03-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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