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Configuration Guide - IP Service

CloudEngine 12800 and 12800E V200R005C00

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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Example for Configuring Inter-VLAN Proxy ARP

Example for Configuring Inter-VLAN Proxy ARP

Networking Requirements

As shown in Figure 2-22, VLAN2 and VLAN3 compose super-VLAN4. Requirements:
  • Servers in VLAN2 and VLAN3 cannot ping each other.
  • Servers in VLAN2 and VLAN3 can communicate after inter-VLAN proxy ARP is configured.
Figure 2-22 Networking diagram for configuring inter-VLAN proxy ARP

Configuration Roadmap

The configuration roadmap is as follows:

  1. Configure a super-VLAN and sub-VLANs.
  2. Add interfaces to the sub-VLANs.
  3. Create a VLANIF interface corresponding to the super-VLAN and configure an IP address for the VLANIF interface.
  4. Enable inter-VLAN proxy ARP.


  1. Configure a super-VLAN and sub-VLANs.

    # Configure sub-VLAN2.
    <HUAWEI> system-view
    [~HUAWEI] sysname Switch
    [*HUAWEI] commit
    [~Switch] vlan 2
    [*Switch-vlan2] commit
    [~Switch-vlan2] quit
    # Add 10GE1/0/1 and 10GE1/0/2 to sub-VLAN2.
    [~Switch] interface 10ge 1/0/2
    [~Switch-10GE1/0/2] port default vlan 2
    [*Switch-10GE1/0/2] quit
    [*Switch] interface 10ge 1/0/1
    [*Switch-10GE1/0/1] port default vlan 2
    [*Switch-10GE1/0/1] quit
    [*Switch] commit
    # Create sub-VLAN3.
    [~Switch] vlan 3
    [*Switch-vlan3] commit
    [~Switch-vlan3] quit
    # Add 10GE1/0/3 and 10GE1/0/4 to sub-VLAN3.
    [~Switch] interface 10ge 1/0/3
    [*Switch-10GE1/0/3] port default vlan 3
    [*Switch-10GE1/0/3] quit
    [*Switch] interface 10ge 1/0/4
    [*Switch-10GE1/0/4] port default vlan 3
    [*Switch-10GE1/0/4] quit
    [*Switch] commit
    # Create super-VLAN4 and add sub-VLAN2 and sub-VLAN3 to super-VLAN4.
    [~Switch] vlan 4
    [*Switch-vlan4] aggregate-vlan
    [*Switch-vlan4] access-vlan 2
    [*Switch-vlan4] access-vlan 3
    [*Switch-vlan4] quit
    [*Switch] commit

  2. Create and configure VLANIF4.

    # Create VLANIF4.

    [~Switch] interface vlanif 4

    # Configure an IP address for VLANIF4.

    [*Switch-Vlanif4] ip address 24

  3. Enable inter-VLAN proxy ARP on VLANIF4.

    [*Switch-Vlanif4] arp proxy inter-vlan enable
    [*Switch-Vlanif4] quit
    [*Switch] commit
    [~Switch] quit

  4. Configure servers.

    # Configure IP address for ServerA.

    # Configure IP address for ServerB.

    # Configure IP address for ServerC.

    # Configure IP address for ServerD.

  5. Verify the configuration.

    # Run the display arp command to check all ARP entries.

    <Switch> display arp
    ARP Entry Types: D - Dynamic, S - Static, I - Interface                                                                             
    EXP: Expire-time
    IP ADDRESS      MAC ADDRESS    EXP(M) TYPE/VLAN INTERFACE       VPN-INSTANCE                                                        
    ------------------------------------------------------------------------------                                                       0018-2000-0083        I         Vlanif4                                                                              00e0-fc00-0002   19   D/2       10GE1/0/1                                                                            00e0-fc00-0003   19   D/2       10GE1/0/2                                                                            00e0-fc00-0004   19   D/3       10GE1/0/3                                                                            00e0-fc00-0005   19   D/3       10GE1/0/4                                                                           
    Total:5          Dynamic:4       Static:0    Interface:1  

    # Servers in VLAN2 and VLAN3 can ping each other.

Configuration File

Configuration file of the switch

sysname Switch
vlan batch 2 to 4 
vlan 4
 access-vlan 2 to 3
interface Vlanif4
 ip address
 arp proxy inter-vlan enable
interface 10GE1/0/1
 port default vlan 2
interface 10GE1/0/2
 port default vlan 2
interface 10GE1/0/3
 port default vlan 3
interface 10GE1/0/4
 port default vlan 3
Updated: 2019-04-18

Document ID: EDOC1100039535

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