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CLI-based Configuration Guide - Security

AR500, AR510, and AR530 V200R007

This document describes the configurations of Security, including AAA, DAA,NAC, BRAS Access, ACL, Firewall, Deep Security Defense, Local Attack Defense;Attack Defense, Traffic Suppression, ARP Security, Port Security, DHCP Snooping, IPSG, URPF, PKI, SSL, HTTPS, Keychain, separating the management plane from the service plane, security risks.
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Example for Configuring URPF

Example for Configuring URPF

Networking Requirements

As show in Figure 14-5, the R&D department of an enterprise connects to GE2/0/0 of RouterA, and the marketing department connects to GE1/0/0. RouterA has a reachable route to an external server, and users in the R&D and marketing departments are allowed to connect to the server through RouterA. RouterA is required to prevent staff in other departments from accessing the server without permission using source IP address spoofing.

Figure 14-5  Networking diagram of URPF configuration

Configuration Roadmap

The configuration roadmap is as follows:

Configure URPF on GE1/0/0 and GE2/0/0, and allow special processing for the default route.

Procedure

  1. Configure URPF on the interface.

    <Huawei> system-view
    [Huawei] sysname RouterA
    [RouterA] interface gigabitethernet 1/0/0
    [RouterA-GigabitEthernet1/0/0] undo portswitch
    [RouterA-GigabitEthernet1/0/0] urpf strict allow-default-route
    [RouterA-GigabitEthernet1/0/0] ip address 10.10.1.5 24
    [RouterA-GigabitEthernet1/0/0] quit
    [RouterA] interface gigabitethernet 2/0/0
    [RouterA-GigabitEthernet2/0/0] undo portswitch
    [RouterA-GigabitEthernet2/0/0] ip address 10.10.2.5 24
    [RouterA-GigabitEthernet2/0/0] urpf strict allow-default-route
    

  2. Verify the configuration.

    # Run the display this command on GE1/0/0 to check the URPF configuration.

    [RouterA-gigabitethernet1/0/0] display this
    #
    interface GigabitEthernet1/0/0
     undo portswitch
     ip address 10.10.1.5 255.255.255.0
     urpf strict allow-default-route
    #
    return
    

    # Run the display this command on GE2/0/0 to check the URPF configuration.

    [RouterA-gigabitethernet2/0/0] display this
    #
    interface GigabitEthernet2/0/0
     undo portswitch
     ip address 10.10.2.5 255.255.255.0
     urpf strict allow-default-route
    #
    return

Configuration Files

Configuration files on RouterA

#
sysname RouterA
#
interface GigabitEthernet1/0/0
 undo portswitch
 ip address 10.10.1.5 255.255.255.0
 urpf strict allow-default-route
#
interface GigabitEthernet2/0/0
 undo portswitch
 ip address 10.10.2.5 255.255.255.0
 urpf strict allow-default-route
#
return
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Updated: 2019-05-25

Document ID: EDOC1000097287

Views: 13634

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