9.8.2 Example for Configuring Local Bridging with IP Routing
Configuring local bridging and IP routing allows LANs on different network segments to
communicate with each other.
Networking Requirements
Departments of Enterprise A need to communicate with each other and with local Enterprise B.
Departments of Enterprise A belong to the LANs on the same network segment and can be
bridged, but Enterprise B belongs to a LAN on a different network segment. As a result, link-
layer bridging cannot be used to communicate between Enterprise A and Enterprise B.
In this scenario, local bridging integrated with IP routing offers a viable solution.
As shown in Figure 9-19, bridge groups are configured on local bridging, and interfaces are
added to different bridge groups. After Bridge-if interfaces are created and assigned IP addresses,
and the IP routing function is enabled, the two hosts of Enterprise A can communicate with the
hosts of Enterprises B.
Figure 9-19 Networking diagram of local bridging integrated with IP routing
RouterA
Eth2/0/1
User 1 User 2
10.1.1.1/24 10.1.1.2/24
Eth2/0/2
Eth3/0/0
User 3
10.1.3.3/24
Enterprise BEnterprise A
Bridge-if
Configuration Roadmap
The configuration roadmap is as follows:
1. Create a bridge group on RouterA.
2. Add Eth2/0/1 and Eth2/0/2 on Router A to the created bridge group to allow the two hosts
of Enterprise A to communicate with each other.
3. Create a Bridge-if interface and enable IP routing for the bridge group on RouterA to allow
Enterprise A to communicate with Enterprise B.
Configuration Procedure
l Configure the IP routing function.
Huawei AR530&AR550 Series Industrial Switch Routers
Configuration Guide - Ethernet Switching
9 Transparent Bridging Configuration
Issue 01 (2014-11-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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