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Step Command Remarks

interface that connects to the

internal network.

interface-number

supported:

• Layer 3 Ethernet interfaces.

• Layer 3 Ethernet subinterfaces.

8. Enable the ARP PnP feature.

arp pnp

By default, the ARP PnP feature is

disabled.

Displaying and maintaining ARP PnP

Execute display commands in any view.

Task Command

Display ARP PnP mappings.

display arp pnp

[

interface

interface-type

interface-number ]

ARP PnP configuration example

Network requirements

As shown in Figure 7, configure the ARP PnP feature to allow the host at 1.2.3.4 to access the

external server through GigabitEthernet 1/0/1.

Figure 7 Network diagram

Configuration procedure

1. Configure NAT:

# Specify IP addresses for GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.

<Router> system-view

[Router] interface gigabitethernet 1/0/1

[Router-GigabitEthernet1/0/1] ip address 192.168.0.2 24

[Router-GigabitEthernet1/0/1] quit

[Router] interface gigabitethernet 1/0/2

[Router-GigabitEthernet1/0/2] ip address 202.38.1.100 24

[Router-GigabitEthernet1/0/2] quit

# Configure ACL 2000 to identify packets from subnet 192.168.0.0/24.

[Router] acl basic 2000

[Router-acl-ipv4-basic-2000] rule permit source 192.168.0.0 0.0.0.255

[Router-acl-ipv4-basic-2000] quit

# Create address group 1, and add address 202.38.1.100 to the group.

HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Guides

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