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AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009 CLI-based Configuration Guide - Ethernet Switching

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Configuring a Traffic Policy to Implement Inter-VLAN Layer 3 Isolation

Configuring a Traffic Policy to Implement Inter-VLAN Layer 3 Isolation

Context

After inter-VLAN Layer 3 connectivity is configured, if some users in different VLANs require unidirectional access or need to be isolated, configure inter-VLAN Layer 3 isolation.

Inter-VLAN Layer 3 isolation is implemented using a traffic policy. A traffic policy is configured by binding traffic classifiers to traffic behaviors. The router classifies packets according to IP addresses or other information in packets, and associates a traffic classifier with a traffic behavior to reject the packets matching the traffic classifier, implementing inter-VLAN Layer 3 isolation.

Router provides inter-VLAN Layer 3 isolation based on MQC and based on the simplified ACL-based traffic policy. You can select one of them according to your needs.

Pre-configuration Tasks

Before configuring a traffic policy to implement inter-VLAN Layer 3 isolation, complete the following task:

Procedure

  • Configure MQC to implement inter-VLAN Layer 3 isolation.

    Perform the following MQC configurations to implement inter-VLAN Layer 3 isolation:
    • Specify permit or deny in the traffic behavior.
    • Apply the traffic policy to a VLAN or an interface that allows the VLAN.

    For details about how to configure MQC, see Configuring Packet Filtering in Huawei AR Series Access Routers Configuration Guide - QoS.

  • Configure a simplified ACL-based traffic policy to implement inter-VLAN Layer 3 isolation.

    For details about how to configure a simplified ACL-based traffic policy, see Configuring ACL-based Packet Filtering in Huawei AR Series Access Routers Configuration Guide - QoS.

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Updated: 2019-05-17

Document ID: EDOC1000174108

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